RC Flyer News Jan/Feb 2018 (Vol-23-01)

RC FLYER NEWS MAGAZINE

The RC Pilots’ Source

FEBRUARY 2018

JETI DC-24 REPORT H E-FLITE CESSNA 150 TESTED H WACO YMF-5 PLAN H L-19 BIRD DOG 3-VIEWS

C E S S N A 1 50 — BIG & BEAUTIFUL

FEBRUARY 2018 H VOLUME 23 ISSUE 01

PUSHING THE OUTSIDE O F T H E E N V E LO P E , RF ENGINEERS AMP IT UP

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C E S S N A L-1 9 3 -V I E W S ST I N G E R 1 2 0 B U I L D P R OJ E C T W AC O Y M F -5 H O ST E T L E R P L A N W E N AT C H E E S C A L E C O M P E T I T I O N RCFLYERNEWS.COM

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DX6

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- Programmable voice alerts - Antenna diversity - Integrated wireless trainer link

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- System includes the AR600T DSMX telemetry receiver

Breaking the Budget Barrier Fly anything from airplanes to multi-rotors Integrated wireless trainer link 250 model memory with model transfer capability System version includes the AR610 DSMX receiver

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Cylon X-tail Carbon $589.99 Carbon/Glass $479.99 2.0-meter Slope Racer 2 Versions: Fiberglass+Carbon: Hollow-molded fiberglass construction reinforced with carbon fiber, which gives adequate stiffness and torsional rigidity — recommended for sport flying.

Includes: Ballast tube, servo tray, push rod, clevises, linkages, control horns, servo covers, wing joiner, tail joiner, servo plate

Carbon: Wings are full carbon cloth, carbon reinforced fuselage, with carbon from leading edge of the wing to the tail — significant stiffness and torsional rigidity.

Specifications: Wingspan Length Wing area Weight

Features: • Ailerons, rudder, elevator, and flaps.

• Two-piece hollow molded composite carbon fiber or glass wing design • Carbon fiber square wing joiner • Live hinges on the wing and rudder, with wipers • Gel-coated finish with pre-painted graphics • Full-flying stabilizer with pre-installed bellcrank

CG Transmitter Servos wings Servos fuselage Battery

2000 mm (78.75 in.)

1250 mm (49.21 in.)

34.9 dm2 (3.75 sq ft) ≈1600 g (57 oz) 90 – 95 mm back of leading edge 7 channel King Max CLS0911W (4) King Max (2) 4.8 – 8.4 Volts

Designed and Built for Sailplane Modelers RCRCM Gliders Give You More for Less

Mini Vector X-tail

Sunbird X-tail

Carbon $389.99 Carbon/Glass $319.99 1.69-meter Aerobatic Glider

Carbon $349.99 Carbon/Glass $259.99 1.5-meter Sport Sloper

2 Versions:

Includes:

Fiberglass+Carbon: Hollow-molded fiberglass construction reinforced with carbon fiber, which gives adequate stiffness and torsional rigidity — recommended for sport flying.

Ballast tube, servo tray, push rod, clevises, linkages, control horns, servo covers, wing joiner, tail joiner, servo plate

Carbon: Wings are full carbon cloth, carbon reinforced fuselage, with carbon from leading edge of the wing to the tail — significant stiffness and torsional rigidity.

Specifications: Wingspan Length Weight (glass/ carbon) Weight (carbon) Airfoil CG Radio Servos wings Servos fuselage Battery

Features: • Ailerons, rudder, elevator, and flaps.

• Two-piece hollow molded composite carbon fiber or glass wing design • Carbon fiber square wing joiner • Live hinges on the wing and rudder, with wipers • Gel-coated finish with pre-painted graphics • Full-flying stabilizer with pre-installed bellcrank

1690 mm (66.54 in.)

1070 mm (42.13 in.)

720 g (25.40 oz) 830g (29.28 oz) JH8-10 Symmetrical 72 mm back of leading edge 7 channels King Max CLS0911W (4) King Max (2) 4.8 – 8.4 Volts

Includes:

2 Versions: Fiberglass+Carbon: Hollow-molded fiberglass construction reinforced with carbon fiber, which provides the required stiffness and torsional rigidity for sport and aerobatic flying.

Carbon: Wings are full carbon cloth, with carbon from leading edge of the wing to the tail — provides significant stiffness and torsional rigidity, yet is lightweight and strong.

Features: • Ailerons, elevator, flaps, and rudder control • Two-piece hollow molded composite carbon or fiberglass wing design • Carbon wing joiner • Live hinges on the wing and rudder, with wipers • Gel-coat finish, with pre-painted graphics • Full-flying stabilizer with pre-installed bellcrank

Ballast tube, motor mount, servo tray, pushrod, clevises, linkages, control horns, servo covers, wing joiner, tail joiner, servo plate

Specifications: Wingspan Length Weight (glass/ carbon) Weight (carbon) Airfoil CG Radio Servos wings Servos fuselage Battery

Strega V-tail

2 Versions:

2 Versions: Includes: Ballast tube, motor mount, servo tray, pushrod, clevises, linkages, control horns, servo covers, wing joiner, tail joiner, servo plate

Carbon: Wings are full carbon cloth, with carbon from leading edge of the wing to the tail — provides significant stiffness and torsional rigidity, yet is lightweight and strong.

Features: • Ailerons, elevator, flaps, and rudder control • Two-piece hollow molded composite carbon or fiberglass wing design • Carbon wing joiner • Live hinges on the wing and rudder, with wipers • Gel-coat finish, with pre-painted graphics • Full-flying stabilizer with pre-installed bellcrank

4

550 g 640 g JH Series 60–65 mm back of leading edge 7 channels King Max CLS0911W (4) King Max Mini (2) 4.8 – 8.4 Volts

Tabu V-tail

Carbon $839.99 Carbon/Glass $709.99 2.9-meter F3F Racer Fiberglass+Carbon: Hollow-molded fiberglass construction reinforced with carbon fiber, which provides the required stiffness and torsional rigidity for sport and aerobatic flying.

1500 mm 900 mm

RC FLYER NEWS • February 2018

Specifications: Wingspan Length Weight (glass/ carbon) Weight (carbon) Airfoil CG Radio Servos wings Servos fuselage Battery

2880 mm (113.4 in.)

1470 mm (57.9 in.)

Fiberglass+Carbon: Hollow-molded fiberglass construction reinforced with carbon fiber, which provides the required stiffness and torsional rigidity for sport and aerobatic flying.

Carbon: Wings are full carbon cloth, with carbon from leading edge of the wing to the tail — provides significant stiffness and torsional rigidity, yet is lightweight and strong.

1610 g (56.80 oz)

Features:

1720 g (60.67 oz) JH8 Blend 102–110 mm back of leading edge 7 channels King Max CLS0911W (4) King Max (2) 4.8 – 8.4 Volts

• Ailerons, elevator, flaps, and rudder control • Two-piece hollow molded composite carbon or fiberglass wing design • Carbon wing joiner • Live hinges on the wing and rudder, with wipers • Gel-coat finish, with pre-painted graphics • Full-flying stabilizer with pre-installed bellcrank

Carbon $1299.99 Carbon/Glass $1119.99 3.0-meter F3B/F3F Glider Includes: Ballast tube, motor mount, servo tray, pushrod, clevises, linkages, control horns, servo covers, wing joiner, tail joiner, servo plate

Specifications: Wingspan Length Weight (glass/ carbon) Weight (carbon) CG Radio Servos wings Servos fuselage Battery

2976 mm (117.17 in.)

1500 mm (59.06 in.)

1680 g (59.26 oz) 1760 g (62.08 oz) 90–95 mm back of leading edge 7 channels King Max CLS0911W (4) King Max (2) 4.8 – 8.4 Volts

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Toba V-tail

Tomcat X-tail

Carbon $959.99 Carbon/Glass $829.99 3-meter F3B Glider

Carbon $669.99 Carbon/Glass $489.99 2.5-meter F3F Racer

2 Versions: Fiberglass+Carbon: Hollow-molded fiberglass construction reinforced with carbon fiber, which provides the required stiffness and torsional rigidity for sport and aerobatic flying.

Carbon: Wings are full carbon cloth, with carbon from leading edge of the wing to the tail — provides significant stiffness and torsional rigidity, yet is lightweight and strong.

Features: • Ailerons, elevator, flaps, and rudder control • Two-piece hollow molded composite carbon or fiberglass wing design • Carbon wing joiner • Live hinges on the wing and rudder, with wipers • Gel-coat finish, with pre-painted graphics • Full-flying stabilizer with pre-installed bellcrank

Includes: Ballast tube, motor mount, servo tray, pushrod, clevises, linkages, control horns, servo covers, wing joiner, tail joiner, servo plate

Specifications: Wingspan Length Wing area Weight (carbon/ glass) Wing airfoil Stabilizer airfoil Radio Servos wings Servos fuselage Battery

3085mm (121.46 in.)

1456mm (57.32 in.)

58dm2 (6.24ft2) ≈2000 g (74.07 oz) RCRCM2010-8 RCRCM2010-10 7 channels King Max CLS0911W (4) King Max (2) 4.8 – 8.4 Volts

2 Versions: Fiberglass+Carbon: Hollow-molded fiberglass construction reinforced with carbon fiber, which provides the required stiffness and torsional rigidity for sport and aerobatic flying.

Carbon: Wings are full carbon cloth, with carbon from leading edge of the wing to the tail — provides significant stiffness and torsional rigidity, yet is lightweight and strong.

• Ailerons, elevator, flaps, and rudder control • Two-piece hollow molded composite carbon or fiberglass wing design • Carbon wing joiner • Live hinges on the wing and rudder, with wipers • Gel-coat finish, with pre-painted graphics • Full-flying stabilizer with pre-installed bellcrank

Features:

1240 g 1310 g 96 mm back of leading edge 7 channels King Max CLS0911W (4) King Max (2) 4.8 – 8.4 Volts

Carbon $1269.99 Carbon/Glass $1079.99 2.9-meter F3F Racer

2 Versions:

• Ailerons, elevator, flaps, and rudder control • Two-piece hollow molded composite carbon or fiberglass wing design • Carbon wing joiner • Live hinges on the wing and rudder, with wipers • Gel-coat finish, with pre-painted graphics • Full-flying stabilizer with pre-installed bellcrank

2480 mm 1280 mm

Typhoon Plus X-tail

Carbon $1299.99 Carbon/Glass $1099.99 2.9-meter F3B Glider Fiberglass+Carbon: Hollow-molded fiberglass construction reinforced with carbon fiber, which provides the required stiffness and torsional rigidity for sport and aerobatic flying.

Carbon: Wings are full carbon cloth, with carbon from leading edge of the wing to the tail — provides significant stiffness and torsional rigidity, yet is lightweight and strong.

Specifications: Wingspan Length Weight (glass/ carbon) Weight (carbon) CG Radio Servos wings Servos fuselage Battery

Features:

Tornado V-tail

Includes: Ballast tube, motor mount, servo tray, pushrod, clevises, linkages, control horns, servo covers, wing joiner, tail joiner, servo plate

2 Versions:

Includes:

Specifications:

Fiberglass+Carbon: Hollow-molded fiberglass construction reinforced with carbon fiber, which provides the required stiffness and torsional rigidity for sport and aerobatic flying.

Carbon: Wings are full carbon cloth, with carbon from leading edge of the wing to the tail — provides significant stiffness and torsional rigidity, yet is lightweight and strong.

Wingspan Length Weight (glass/ carbon) Weight (carbon) CG Radio Servos wings Servos fuselage Battery

• Ailerons, elevator, flaps, and rudder control • Two-piece hollow molded composite carbon or fiberglass wing design • Carbon wing joiner • Live hinges on the wing and rudder, with wipers • Gel-coat finish, with pre-painted graphics • Full-flying stabilizer with pre-installed bellcrank

Includes: Ballast tube, motor mount, servo tray, pushrod, clevises, linkages, control horns, servo covers, wing joiner, tail joiner, servo plate

2900 mm 1490 mm 1550 g 1640 g 95 mm back of leading edge 7 channels King Max CLS0911W (4) King Max (2) 4.8 – 8.4 Volts

Features:

Ballast tube, motor mount, servo tray, pushrod, clevises, linkages, control horns, servo covers, wing joiner, tail joiner, servo plate

Specifications: Wingspan Length Wing area Weight (glass) Weight (carbon) Airfoil CG Radio Servos wings Servos fuselage Battery

2940 mm (115.75 in.)

1560 mm (61.42 in.)

57 dm2 (6.13 ft2) ≈1640 g (57.85 oz) ≈1740 g (61.38 oz) JH* 96 mm back of leading edge 7 channels King Max CLS0911W (4) King Max (2) 4.8 – 8.4 Volts

Typhoon X-tail Carbon $519.99 Carbon/Glass $419.99 2-meter Slope Soarer 2 Versions:

Sold by RCSportFlyer.com we Save You Money rcflyernews.tumblr.com

Fiberglass+Carbon: Hollow-molded fiberglass construction reinforced with carbon fiber, which provides the required stiffness and torsional rigidity for sport and aerobatic flying.

Carbon: Wings are full carbon cloth, with carbon from leading edge of the wing to the tail — provides significant stiffness and torsional rigidity, yet is lightweight and strong.

Features: • Ailerons, elevator, flaps, and rudder control • Two-piece hollow molded composite carbon or fiberglass wing design • Carbon wing joiner • Live hinges on the wing and rudder, with wipers • Gel-coat finish, with pre-painted graphics • Full-flying stabilizer with pre-installed bellcrank

Includes: Ballast tube, motor mount, servo tray, pushrod, clevises, linkages, control horns, servo covers, wing joiner, tail joiner, servo plate

Specifications: Wingspan Length Wing area Weight Weight (Glass) Weight (Carbon) Airfoil CG Radio Servos wings Servos fuselage Battery

2000 mm (78.75 in.)

1210 mm (49.21 in.)

34.9 dm2 (3.75 sq ft) ≈1600 g (57 oz) 900 g (31.75 oz) 960 g (33.86 oz) JH8 82 mm back of leading edge 7 channels King Max CLS0911W (4) King Max (2) 4.8 – 8.4 Volts

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5

TABLE OF CONTENTS DEPARTMENTS

10 112 113

LEADING EDGE ADS INDEX MYSTERY PLANE

§ TOM WOLF’S BEAUTIFULLY DETAILED QUARTER-SCALE, GASPOWERED CESSNA L-19 BIRD DOG WAS PHOTOGRAPHED AT THE 2017 WENATCHEE SCALE EVENT.

EVENTS

12

WENATCHEE SCALE 2017 SEE OUR HUGE PHOTO SPREAD AND REPORT ON THIS SPECIAL NORTHWEST RC SCALE COMPETITION. Wil Byers

6

RC FLYER NEWS • February 2018

twitter.com/rcflyernews

JAN/FEB 2018

BUILD

3-VIEW

PLAN

R/C 44 LANIER STINGER 120

L-19 52 CESSNA BIRD DOG

WMF-5 62 WACO BIPLANE

LEARN ABOUT USING THE RIGHT HARDWARE TO GET THE RIGHT FLIGHT RESULTS. Jeff Troy

IT IS A VIETNAM WAR ERA RENCONAISSANCE AIRPLANE WITH A FAMED HISTORY Hans-Jürgen Fischer

THIS PLAN IS COPIED AFTER AN AIRCRAFT THAT MAY BE WACO’S FINEST DESIGN TO DATE. Wendel Hosteller

REVIEWS

72

CARBON-Z P2 PROMETHEUS FIND OUT HOW THE P2 WILL LET YOU TAKE YOUR PILOTING SKILLS TO THE LIMIT AND BEYOND! RCFN Staff

rcflyernews.tumblr.com

T-28 CARBON-Z 86 CARBON-Z 94 BNF W/ AS3X CESSNA 150 DISCOVER WHY THIS WARBIRD TRAINER IS BOTH A SPORT MODEL AND GOOD FOR COMPETITION. RCFN Staff

104

LOOK AT HOW THIS QUINTESSENTIAL USA CIVILIAN AIRPLANE PERFORMS AS A MODEL. Wil Byers

JETI DC-24 TRANSMITTER GET AN UP -CLOSE LOOK INSIDE OF THE JETI DC-24 2.4-GHz TRANSMITTER WITH 900-MHz MODULE. Wil Byers

Subscribe @ RCSportFlyer.com

7

EDITOR IN CHIEF Wil Byers wil@rcflyernews.com ASSISTANT EDITORS James T Baker Doris Chen Asa Clinton Jenn Hart PRODUCTION Abdhesh Jha Jha@kionapublishing.com PHOTOGRAPHY Wil Byers GRAPHIC DESIGNERS Meng Zhe

Bess Byers Abdhesh Jha

WEBMASTER Mohamed Badaway OFFICE MANAGER Jenn Hart support@kionapublishing.com OFFICE ASSISTANT Tang Yong CIRCULATION Christian Wells MARKETING Wil Byers ads@rcflyernews.com

Point Your browser at the new

RCSPORTFLYER.COM STORE to get other great RC-SF products.

CONTRIBUTING EDITORS Christian Belleau, Rob Caso, Gene Cope, Richard Kuns, David Phelps, Steve Rojecki, Jeff Troy, Robert Vest, James VanWinkle, Tom Wolfe RC Flyer News (ISSN: 1941-3467) is published bi-monthly for $19.95 a year ($2.19 ea digital) in the USA by Kiona Publishing, Inc., P.O. Box 1950, Moses Lake, WA 98837. Periodicals postage paid at Richland, WA and additional mailing offices.

POSTMASTER Send address changes to RC Flyer News, P.O. Box 1950, Moses Lake, WA 98837-0164 HOURS Tues–Thurs 10-3 Closed Mon, Fri, Sat, Sun

SUBSCRIPTIONS rcsportflyer.com ADVERTISING (509) 750-5294 E-MAIL subscriptions@kionapublishing.com EDITOR/ADS/DESIGN (509) 750-5294

Ask for RC Flyer News at your local hobby shop!

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Hobby Shop Orders (800) 558-1544 ext. 818 www.retailers.kalmbach.com

HOBBY SHOP DISTRIBUTION BY

Kalmbach Publishing Co. (800) 558-1544 ext. 818 Subscriptions: USA $19.95 and Canada: $29.95 per year, $36.95 overseas.

Washington residents add 8.5% sales tax. Single copies $6.49 plus $4.00 S&H U.S. All payments must be in U.S. funds. Visa, Mastercard, Amex, and Discover accepted.

Send to: RC Flyer News – Circulation, P.O. Box 1950, Moses Lake, WA 98837-0164.

Please allow eight weeks for change of address to be updated.

MEDIA USE:

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a. HEXACHROME #09195B or b. R = 9 G = 25 B = 91

FOR PRINT (Lithography, Screen printing), USE

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or

CONTRIBUTIONS: Articles and photographs are welcome, but cannot be considered unless guaranteed exclusive. When requested we will endeavor to return all materials in good condition if accompanied by return postage. RC Flyer News assumes no responsibility for loss of or damage to editorial contributions received. Any material accepted is subject to possible revision at the discretion of the publisher. Publisher assumes no responsibility for accuracy of content. Opinions of contributing authors do not necessarily reflect those of the publisher.

RC Flyer News will retain author’s rights, title to and interest in the editorial contributions as described above in both print and electronic media unless prior arrangement has been made in writing. Payment for editorial materials will be made at our current rate. Submission of editorial material to RC Flyer News expresses a warranty by the author that such material is in no way an infringement upon the rights of others. The contents of this magazine may not be reprinted traditionally or electronically without permission of the publisher.

Copyright ©2016 All rights reserved.

Printed in the USA

8

RC FLYER NEWS • February 2018

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Maxx Products is your complete source for Electric Airplane Accessories

Mounts - Heatsink or plain mounts for beam mount Fit 20, 28, and 36 mm motors.

Heatsinks - Extruded aluminum heatsinks Fit 12, 20, 28, and 36mm motors.

Prop Adapters - Over 20 types and counting, Collet and set screw type prop adapters and prop savers Fit 2mm, 2.3mm, 3mm, 1/8”, 4mm, 5/32”, 5mm, 6mm, & 8mm motor shafts.

Spinners - 29, 38, 44 and 50mm lightweight polished aluminum spinners - Fit 2 to 5mm motor shafts.

Gearboxes - Assorted planetary and offset gearboxes to fit a variety of motors.

Tools - Universal Pinion Puller. Universal Extracting Tool

1570 Switch - This simple switch temporarily disconnects BEC power to the radio system between flights.

• Micro wire (32AWG) extensions, Y-harness, switch harness for small electric airplanes, • Full line of Himax Brushless motors and gear motors, • Full line of ferrite motors and high performance cobalt & neodymium motors, Micro servos, micro receivers, and battery packs.

Visit Our Website to See the Complete Line!

Get The Most For Your Hobby Dollar, Visit Your Local Hobby Shop!

Wheels - Light weight wheels with strong hubs Sizes: 1.25”, 1.5”, 2”, 2.5”, and 3.00”

Exclusive Distributor

MAXX Products International, Inc. 815 Oakwood Rd., Unit D, Lake Zurich, IL 60047, USA Ph: 847-438-2233 Fax: 847-438-2898

www.maxxprod.com

LEADING EDGE

I

WIL BYERS

t started in 1987.... The telephone modem buzzed, the Mac SE’s screen lit up with command line text, and I discovered a connection to a new communication world via a primitive but viable Internet.

I’d just logged on to AOL from a Bainbridge Island, Washington lawyer’s office. The connection was a revelation—one that changed your’s and my world forever! By way of that little Mac, with its ‘huge’ 20-megabyte hard drive, I was connecting with 100,000-plus AOL members in my search for knowledge about RC gliders and sailplanes. AOL had introduced me to an amazing communication channel that gave me instant access to modelers from my place in Washington to users on the other side of the planet; and, it did so via this simplistic command line—not in days, weeks, or months either— in seconds. Following on, AOL initiated e-mail, which let me query people and get their responses in due time. It was technology that provided communication tools I’d only dreamed about since 1967 when, during a lecture, my English instructor provided my classmates and me a glimpse into the future. As a University of Washington professor, he explained we would soon have plastic money, electronic communications, and our government would amass a database about its citizens. I’m convinced it was professor Gage’s way of underscoring how George Orwell’s Nineteen Eighty-Four would become a reality. Professor Gage was a visionary! At that point in time, not many would have imagined that data streaming as ones and zeros thru copper and fiber optic cable, and stored in immense server farmers called “clouds,” would change the world so monumentally, let alone documented history. Well, it indubitably has; and, it has changed magazine and book publishing forever—like it or not!

With the above as my introduction to this column, let me say, in life, there are things that are damn hard to discharge!

Writing this issue’s Leading Edge column has been one of the most hellish challenges I’ve faced. It is not a fabrication or exaggeration when I tell you I’ve spent more than a month anguishing over how to compose this column. It has been this writer’s most daunting impediment to publishing an issue. Moreover, it is not an aggrandizement when I characterize the challenge by saying, I’ve suffered gutwrenching pain trying to pen these words. They just would not come, no matter how I encouraged and accosted myself to write.

As much as the steam-engine-powered locomotive was eclipse by diesel-electric power, the days of hardcopy, printed-on-paper magazines are sadly being obliterated even more so by digital editions that live in clouds. RC Flyer News (formerly RC Sport Flyer) magazine is no exception!

Necessarily, after 24 years of publishing, the hardcopy magazine must yield to the power curve to become a digital publication. We fought the battle with time, money, and heartache but regrettably Kiona Publishing, Inc. lost. We’ve truly loved seeing our images, articles, advertisements,

10

RC FLYER NEWS • February 2018

and covers printed on paper. We’ve delighted in delivering them to our readers via newsstands, hobby shops, and by post. Importantly, we’ve gotten a thrill out of the privilege of delivering informative, entertaining, educational, and requested content to our readers that, significantly, was insured against slander and defamation. Further, we’ve long held the opinion that our hardcopy editions helped grow and shaped the hobby by way of its distribution channels, presentation, and content. We like to think our title served up content, which has been hugely different from that that is search-driven, laissez-faire content you find online. I’m sorry millennials, but you’ll probably not understand because you’ve grown up in a digital world that my generation designed, engineered, financed, nurtured, and refined, which you’ve adapted to your needs and wants—cool!

Understandably, you’ve grown up with your heads in the “clouds”.

Commencing with this issue, RC Flyer News is a digital magazine. We’re going to provide the same honest, informative, and artistically designed pages as we have for the last 24 years. Going forward RC Flyer News will be published in PDF, HTML 5, and as flip book versions. What we must communicate is that we will continue to search for and publish content that educates and entertains our readers. Moreover, it just may be that as a digital publication we can enhance the readers/subscribers experience by providing interactivity, video, and users’ interfaces via our content providers.

E-commerce While we’re stepping away from hardcopy publishing in favor of digital, we are adding to RC Flyer News’ digital Internet presence by way of a new online store RCSportFlyer.com. The store offers products we feel can and will enhance your modeling experience, often with discounts available only to our readers and subscribers.

Importantly, your purchases of our products will help Kiona Publishing, Inc. remain a viable entity, so we can keep delivering content to your e-mail inbox. Moreover, it is possible that we will offer special hardcopy editions of RC Flyer News magazine as we go forward and profit from both sides of our business: publishing and product sales.

Fact is, Kiona Publishing, Inc. is forced to adapt or perish.

We now recognize that “Insanity is repeating the same mistakes and expecting different results.”

Therefore please bookmark our online store: RCSportFlyer.com. Share the link with others too, please.

Your efforts will not only benefit you but the modeling community as a whole. The profitability of the store will mean we’re able to do more publishing with less advertising.

It will also mean super quality and prices for all of our customers.

Test Shop In other news, we’re in the process of setting up our shop to do product testing of servos, batteries, speed controllers, motors, etc. These test should enlighten us all about the actual performance of those items we have the opportunity to test. The fact is, we want to validate the claimed performance of products both being offered by RCSportFlyer.com and of those from other companies as twitter.com/rcflyernews

well. The focus of my tests—having worked as a metrologist (not a weatherman) for more than 15 years—will be to lay the facts bare, just as I did in the laboratory. After all, as consumers, we have a right to know if our dollars are being spent well, as well as if our purchases will enhance our enjoyment of the hobby/sport.

Wrap Up While writing this column was a “push,” assembling the rest of the content confirmed this job is anything but work.

How could it be? Writing about and publishing content about RC has long been and is a passion!

It is just plain fun to see articles come together like that of the Cessna L-19 Bird Dog and the plan for the Waco YMF-5. I’ve had a passion for photography since the 1970s, so shooting the photos for the Wenatchee Scale event was an absolute hoot; and, the club members were exceedingly kind to me, which only added to the enjoyment of the work. Then too, Jeff Troy—our Build columnist—has been a true friend since 1988 when he was assisting the Academy of Model Aeronautics in their search for a site for the AMA National Championships. At the time, I was spearheading the drive to host them in Richland, Washington, which subsequently became the site of the last away-from-Muncie NATS. Jeff, as always, has been a promoter of the hobby by way of his builds. So his columns always teach me tips and tricks as I do my proofreads of them. And, hey, let’s face it, flying some of the review models is simply a blast, especially when you consider that many of the airplanes, helicopters,

rcflyernews.tumblr.com

and sailplanes we receive for review are the latest versions.

Let me end with the following: while this issue has taken much too long to get into “print,” we believe we have resolved the production issues that have challenged and taxed our resources to the max. We can now produce our digital editions promptly. Additionally, we know we can deliver content equal to or better than that of our hardcopy editions, as well as those of our competitors. It remains to be seen if we can convince the advertisers to come back to our pages, but we’ll be working on that aspect of the business too. We know our new online store will offer you some exceptional buys in the areas of servos, drones, shirts, hats, sunglasses, sailplanes, and accessories. Please visit the store regularly to see what’s new. Also, share your needs or wants for RC products we may be able to source. We’ll do our best to find them and add to our inventory, or at the least have them drop shipped to you.

That does it for this issue. So, until next time, cycle your models’ batteries, range test their radio systems, use plenty of sunscreen, and make jolly indulging in RC. RC Flyer News @ Facebook: www.facebook.com/rcflyernews Instagram: www.instagram.com/rcflyernews Tumblr www.rcflyernews.tumblr.com Twitter: www.twitter.com/rcflyernews YouTube: www.youtube.com/rcflyernews

Subscribe @ RCSportFlyer.com

11

WENATCHEE

RC 12

as a hobby/sport has many facets! There are almost too many, that is if you consider the time and money required for those pilots who want to participate in more than a couple.

RC FLYER NEWS • February 2018

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SCALE 2017

A COMPETITION WITH RED APPLE SPORTSMANSHIP

BY STAFF

Tom Wolf was competing in the Expert Class with his beautifully documented and detailed Cessna L-19. rcflyernews.tumblr.com

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WENATCHEE RED APPLE SCALE COMPETITION 2017

One of the oldest and most popular areas of RC is scale modeling. RC scale model aircraft building and flying have an extremely rich history. It extends back to the days of rubber-powered airplanes, as well as to the early times of RC aircraft and their systems. Fact is, the 1938 Academy of Model Aeronautics (AMA) Nationals, hosted in Detroit, Michigan, had Clinton DeSoto enter a 14-foot wingspan, 25-pound, stand-offscale Piper Cub model, which was powered by a Forster twincylinder engine. Sadly, it did not fly because the engine would not start.

Times have changed…. In this day and age of 2.4-GHzradio systems, with ultraprecise proportional control, and telemetry systems, there are a number of scale events around the USA. These include

Gunsmoke in Mesa, Arizona; Top Gun, Twelve O’Clock High, and Red Flag in Lakeland, Florida; The Scale Squadron in Southern California; and obviously many more.

Each year the Red Apple Flyers’ Best in the West, Northwest Scale event is held in Wenatchee, Washington.

During the 2017 season, it was held over the weekend of August 25 thru 27. It is the focus of this article.

his credit. As he explained to me, the classes flown at the 2018 Red Apple Flyer’s contest were quite similar to those used for Frank Tiano’s Top Gun events. As most of us know, Top Gun events have become the benchmark in scale competitions, with some of the best pilots, builders, and teams from around the world entering each year.

The classes flown at the 2018 Wenatchee event were:

Classes Because the Red Apple Flyers (RAF) host their event as a competition rather than a fun fly, a good place to begin this article is to outline the rules. Our contributing editor, Tom Wolf, often attends the Red Apple Flyers’ event.

Tom is an avid scale builder, with many contests wins to

ProAm Sportsman This is an entry level RAF class. Almost-ready-to-fly (ARF) aircraft were allowed to enter. The aircraft shown and flown must be representative of a full-scale aircraft, and documented at a minimum with a photograph. Scoring was as follows: 100 points were possible for flying a

Tom’s L-19 Bird Dog was built from scratch as a quarter-scale model.

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RC FLYER NEWS • February 2018

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The finish detail on Tom’s L-19 was definitely Top Gun quality, right down to the rivets and paint match!

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WENATCHEE RED APPLE SCALE COMPETITION 2017

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Rob Dover came to the RAF event from Canada. He was flying his beautifully done 1/3-scale Super Cub. rcflyernews.tumblr.com

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WENATCHEE RED APPLE SCALE COMPETITION 2017

You need to look very closely to see this airplane is a scale model—it is that well done.

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RC FLYER NEWS • February 2018

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sequence of 10 maneuvers—10 points possible for each. The entrant could earn from zero to five points for the airplane’s static score, which depended if a photo was presented as verification of type. There were 105 possible points for the maximum score.

ProAm Pro This RAF class is similar to ProAm Sportsman’s class, but it was reserved for expert pilots or the past year’s winners in Sportsman class. Otherwise, all the rules applied from the ProAm Sportsman class.

Unlimited ARFs were again allowed.

The scoring used was the same as that of the ProAm classes.

This class was meant for pilots who may have previously competed in Advanced, Expert,

or Team Scale, or for past winners of ProAm Pro class.

Advanced Class In this RAF class ARFs, or aircraft that were built or purchased from other individuals, were allowed. The builder-of-the-model rule did not apply. The scoring was as follows: 100 points for the flight and 100 points for the static score. The entrant must provide a complete static judging documentation package, which consists of a three-view drawing, color and marking information, plus craftsmanship details. The documentation package was used by the static judges to establish the aircraft’s static score. Note that the static judging covers three areas: aircraft outline, colors and markings, and craftsmanship.

Team Scale This RAF class is comprised of a two-person team, which consists of the builder of the model and a pilot. In this case, the scoring is same as that of the Advanced class. Also, there were no ARF aircraft allowed.

Expert The RAF Expert class is the most challenging of all their classes. In this case, the aircraft must be built and flown by the pilot. No ARF aircraft were allowed. The scoring used was the same as that of the Advanced class.

Exclusionary Not What stood out about the Red Apple Flyers’ scale event?

Well, first and foremost, it was organized as an invitation to all scale enthusiasts to participate.

As such, the contest director

Rick did an exceptional job of detailing even the control linkages, the landing gear, tailwheel, and cowl.

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WENATCHEE RED APPLE SCALE COMPETITION 2017

Dick Matson was competing with his Great Planes Waco YMF-5D, which sports a 72-in. wingspan.

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RC FLYER NEWS • February 2018

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Dick’s piloting earned him well-deserved points for the contest, even though his model was from an ARF kit.

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WENATCHEE RED APPLE SCALE COMPETITION 2017

Jim Edwards’ Sopwith Pup was a standout at the contest both in terms of vintage and finish detail.

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Jim’ Sopwith Pup underscores why flying scale RC airplanes presents a joy to spectators.

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WENATCHEE RED APPLE SCALE COMPETITION 2017

Check out Rod Madison’s beautiful J3 Cub! If definitely makes you want to enter a scale contest.

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This airplane is detailed very well. Most RC pilots could replicate the same quality with a little time and effort—and lots of fun too!

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WENATCHEE RED APPLE SCALE COMPETITION 2017

This Cub was a team entry by Moore and Stucky. Up close the covering job of the fabric was gorgeous, simulating the full-scale.

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RC FLYER NEWS • February 2018

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was allowing ARFs and even high-quality molded-foam airplanes to enter and be flown. When queried about this, the members informed me they were trying to grow participation in RC scale aircraft.

They were doing so by allowing pilots to enjoy the fun of competition, but without the need for hours of intense model building. It made sense to me. It was even more understandable when I witnessed the smiles on the pilots’ faces after they had completed a competition flight.

Furthermore, the event had a level of seriousness for some entrants. However, their seriousness did not make them exclusionary. Rather, they were engaging and inviting to those who were anxious to know more about their models and the competition. As one surveyed the pit area, it was not unusual to see a pilot or builder explaining the nuances of the build, piloting, scoring, or how their flight had evolved or been scored. There was just a feeling about it that left me wanting to be part of this relaxing, recreational event in 2018.

Their contest just did not impart a feeling of intimidation by way of the requirement to build a stunning model, to understand the scoring to the letter, to be a superb competition pilot, or to have deep financial pockets. Rather, it left me with a feeling of wanting to be part of the enjoyment of flying scale airplanes in a contest environment—to challenge oneself to pilot an RC airplane such as you would a full-scale airplane.

How much great, fun, entertaining, cool, and challenging is that? Much!

Red Apple Flyer’s Scale Events 2018 Spring PRO/AM Opener April 21–22 Site: Club Airfield. Contest Director: Rick Wood, e-mail: rcflyernews.tumblr.com

woodlan@icloud.com. AMA Sanction #18/93. Beginners to Expert pilots are welcome.

Scores count toward Northwest Scale Aeromodelers Scale Championship.

Best in the West, NW Scale August 23–26 Site: Club Airfield. Contest Director: Del Herring, e-mail: del.herring301@gmail.com.

AMA Sanction #18/129.

Events: 512, 520, 522 (JSO) Six Classes: Pro AM Sportsman, Pro AM Pro, Pro AM Unlimited, Advanced, Team, Expert.

Airfield For those that don’t know about the Wenatchee Red Apple Flyers’ club and airfield, I’ll start by saying if you live within 300 miles of the airfield it is worth joining the club. I mean it!

This is a superb airfield, that sits at the base of Badger Ridge, which is just to the east.

The airfield is groomed to the maximum. It has a 600-footlong paved runway and a 700foot close-mown grass runway.

Plus there is an excellent large clubhouse (with WiFi) that looks out onto the airfield. The clubhouse includes a kitchen facilities, a large meeting area, well-kept toilet facilities, and an elevated deck area for viewing the airfield and pits from above.

The pits include benches for model setup and large areas for preflights. The adjoining parking areas include recreational vehicle hookups, including a central septic disposal area, which means you can vacation at the airfield for a small fee—rates are posted on their website. Furthermore, the club offers on-field model storage facilities that you can be either rented by the month or year, or purchased.

It is not an overstatement to say, the Red Apple Flyers’ airfield is truly one of the best in the nation, if not the best. It Subscribe @ RCSportFlyer.com

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WENATCHEE RED APPLE SCALE COMPETITION 2017

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This was also a standout. It is a Fly Baby that was built and flown by Scott Enoch—superb sight in the air. rcflyernews.tumblr.com

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WENATCHEE RED APPLE SCALE COMPETITION 2017

Jerry Holcomb entered this B-17. It underscored the variety of airplanes that were welcomed at the event.

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WENATCHEE RED APPLE SCALE COMPETITION 2017

Virgil Johnson’s Monocoupe had been entered in a number of contest prior to Wenatch, as it was told.

The Monocoupe is an example of how you could find a scale airplane at a swap meet and have fun flying scale.

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RC FLYER NEWS • February 2018

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Mich Moore ws also flying a Sopwith Pup. Look at how well this model presents in the air....

This Nieuport 28 was flown by Del Herring. All around, this was a fun airplane to watch takeoff and fly.

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WENATCHEE RED APPLE SCALE COMPETITION 2017

Tom Strom entered this Corsair. We believe it was an ARF, which gave the pilot a chance to compete.

Roger Compton entered this nice Spacewalkers, which used fourstroke engine power.

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RC FLYER NEWS • February 2018

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There were a couple of turbines entered and flown. This F9F Panther was flown by Rick Stucky.

Phil Tallman did a good job of piloting his Super Cub. This airplane type would let you compete too.

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WENATCHEE RED APPLE SCALE COMPETITION 2017

You’d never know this is not a full-scale airplane just by looking at the photo, the flight realism is so good.

This quarter-scale Hnagar 9 Cirrus ARF has a 97-in. wingspan. It was entered by Dave Moline.

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RC FLYER NEWS • February 2018

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Paul Fleming’s P6E was just outstanding in the air. It had me wanting to fly scale in Wenatchee’s 2018 event in August. rcflyernews.tumblr.com

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WENATCHEE RED APPLE SCALE COMPETITION 2017

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RC FLYER NEWS • February 2018

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The Cessna 152 is the quinessential airplane. This 1/4-scale model was flown by Stan Holcek. rcflyernews.tumblr.com

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WENATCHEE RED APPLE SCALE COMPETITION 2017

Rick Wood entered this beautiful Piper Pawnee 25D. As you can see it did not lack for realism in flight, with smoke simulating the spray.

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RC FLYER NEWS • February 2018

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Here Rick’s Pawnee sets up for a spray pass. It certainly replicates that of the full-scale airplane.

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haapening at their airfield as well as the scale compeition. I hope to see you there in 2018!

Directions Grant Road east from East Wenatchee, drive through a 90-degree left turn onto Fourth Street headed east. RC airfield is located on the left 2.3 miles east of Pangborn Airfield entrance.

FMI Point your browser at the redappleflyers.org website.

They have information about upcoming events, the airfield history, online membership services, and contact information for the club officers.

Be sure to check out their calendar and attend a few events in 2018 if possible.

CONTACT

is certainly, a superb site for just about any event, and especially so for a scale event.

A huge plus for this site is the Wenatchee, Washington Valley is an excellent vacation destination for family and friends—you might even consider it for a retirement locale. You’ll discover the area offers excellent hiking, boating, rafting, antiquing, plus some truly superb restaurants in and around Wenatchee. Moreover, Lake Chelan is just 30 minutes to the north. It is one of the most pristine lakes in North America. In addition to superb water sports, Lake Chelan offers an excellent hang gliding and paragliding destination by way of Chelan Butte, which overlooks the lake and the Columbia River.

Let’s end this article, by punching the fact that the Red Apple Flyers host a couple of superb scale events each year, at an excellent RC airfield, in an area that has fun for family and friends written all over it. The club also hosts other events as well. Those events include: Electric Fly-In, Field of Dreams Scale, Warbirds, a Float Fly and Wings and Wheels. So, the RAFs have lot of events

Wenatchee Red Apple Flyers 5201 Sth St SE East Wenatchee, WA 98802 redappleflyers.org

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1815 South Research Loop Tucson, Arizona 85710 Phone: (520) 722-0607 E-mail: info@desertaircraft.com Web Site: desertaircraft.com DA-200

DA-100I

Price $2795

Displacement: 12.20 cin (200 cc) Output: 19 hp Weight: 10.95 lb (4.95 kilos) Length: 9.625 in. (244 mm)

Price $Call

Displacement: 6.10 ci (100 cc) Output: 10 hp Weight: 7.0 lb (3.18 kg) Length: 9.3 in.

DA-170

Price $1695

Displacement: 10.48 ci (171.8 cc) Output: 18 hp Weight: 8.05 lb (3.56 kilos) Length: 7.67 in. (195 mm)

DA-150

DA-70

Price $1395

Displacement: 9.15 ci (150 cc) Output: 16.5 hp Weight: 7.96 lb (3.61 kilos) Length: 7.67 in. (195 mm)

Price $749

Displacement: 4.28 ci (70 cc) Output: 11 hp Weight: 3.55 lb (1.61 kg) Length: 5.54 in. (141 ,,)

DA-120

Price $1199

Displacement: 7.4 ci (121 cc) Output: 11 hp Weight: 4.95 lb (2.25 kilos) Length: 6.25 in. (159 mm)

DA-100L

DA-60

Price $999

Displacement: 6.10 ci (100 cc) Output: 9.8 hp Weight: 5.57 lb (2.53 kilos) Length: 6.5 in. (162.5 mm)

Price $649

Displacement: 3.7 ci (60.5 cc) Output: 1200–7200 Weight: 3.1 lb (1.41 kg) Length: 6.7 in. (170 mm)

DA-85

Price $795

Displacement: 5.24 ci (85.9 cc) Output: 8.5 hp Weight: 4.3 lb (1.95 kilos) Length: 5.9 in. (150 mm)

DA-50-R

Price $595

Displacement: 3.05 ci (50 cc) Output: 5.0 hp Weight: 2.94 lb (1.33 kilos) Length: 6.7 (170 mm)

All Desert Aircraft engines come with a Manufacturer’s Warranty

DA-35

Price $449

Displacement: 2.14 ci (35 cc) Output: 1,500–8,200 rpm Weight: 2.06 lb (935 kg) Length: 6.35 in. (161 mm)

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L A N I E R R / C ST I N G E R 120 & DU-BRO PRODUCTS THE RIGHT HARDWARE FOR THE RIGHT FLIGHTS

BY JEFF TROY

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RC FLYER NEWS • February 2018

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Jeff Troy’s Lanier RC Stinger 120

I

managed a hobby shop for several years in the 1980s, and built many airplanes on the countertop to demonstrate tools, products, and techniques. One of these models was the Stinger 120, which had been gifted to me by the late Bubba Spivey, president of Lanier R/C. I got most of the airplane constructed back then, but moves between Virginia, Florida, New Jersey, and Pennsylvania prevented completion of the model. I’ve been in my present location for 17 years, and figured that getting the Stinger and roughly 20 more abandoned rcflyernews.tumblr.com

Du-Bro Products, one of my favorite accessory providers, had the many of the accessory items I needed for the project.

projects out of the garages and into my workshop was long overdue.

The Stinger was close to done.

The fuselage and tail group were built, and the foam-core wing panels were constructed and joined. After fiberglassing the center section and removing the foam between the cap strips in the wing bays, the airplane was ready for sanding and finishing, but “finishing” a model of this size represents a lot more work than slapping on some plastic film and bolting down an engine.

HERE’S THE DEAL

My first step was to drill the control surfaces and flying surfaces for #308 Steel Pin Hinge Points from Robart Manufacturing in St. Charles, Illinois, then temporarily mount the control surfaces, and install the radio system. Incidentally, if you like using Robart Hinge Points, you’ll appreciate the convenience of the company’s #319 Hinge Point Drill Jig. I chose my JR 12X transmitter with a Spektrum receiver, five JR SPORT ST126MG standard, metalgear servos for the control surfaces, and one JR SPORT ST47BB standard, ball-bearing servo for the throttle. I wanted a rigid and reliable pushrod system, so I chose Dave Brown

Fiberglass Arrow Shafts with Du-Bro Products’ 12-in. 4-40 Threaded Rods (#144) for all of the control surfaces.

A Du-Bro #173 30” Threaded Rod with a Z-bend at the carburetor end and a Du-Bro #109 2-56 Spring Steel Kwik-Link at the servo end make the connection from the throttle servo to the engine’s carburetor arm.

Attachment points for the rudder and two elevator panels are Du-Bro #493 Adjustable Control Horns, with a #866 Heavy Duty Control Horn System on each of the two ailerons.

Adjustable clevises are included with the #866 systems, and I chose three Du-Bro #304 4-40 Spring Steel Kwik-Link Clevises for the rudder and elevators.

I initially used the white plastic arms that came with the JR SPORT servos, but later found (following the Stinger’s first flight) that one of these arms had cracked around the output shaft, causing the same effect as a stripped servo gear. Clearly, something stronger was absolutely necessary, and the JR arms were immediately replaced with five DuBro #671 Super Strength Servo Arms for JR Servos. Problem solved.

My initial engine choice was a powerful and reliable Enya R-1204C four-stroke, which flew Subscribe @ RCSportFlyer.com

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LANIER R/C STINGER 120 & DU-BRO PRODUCTS

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Du-Bro Control Horns,Threaded Rods, and Clevises move the Stinger 120 tail group’s control surfaces.

3

Du-Bro Heavy Duty Control Horns handle the Stinger’s ailerons’ loads easily.

4

Du-Bro Rod-and-Clevis Tail Supports make this model’s empenage secure in all directions, which is a must for good control and safety.

5

Du-Bro Heavy Duty Servo Arms add an additional layer of control security because the do not flex when under loads.

the airplane “nicely,” although it did so with somewhat less authority than I wanted. After two or three flights, I moved the Enya over to a Dynaflite Giant Spitfire (also from my incomplete projects stable), and replaced it with a Saito FA-180GK from Horizon Hobby in Champaign, Illinois.

Du-Bro rods and arms can do more for you than just control hookups. I wanted to reinforce the tail section as the Stinger plans suggested, so I cut eight #144 4-40 Threaded Rods to the correct lengths, threaded a #304 4-40 Spring Steel Kwik-Link Clevis onto each of them, and silver-soldered a #305 4-40 Solder Kwik-Link to the cut-off end. Every clevis has two 46

RC FLYER NEWS • February 2018

arms; one with a pin and the other with a hole to accept the pin. I used a Du-Bro 1-1/4-in. Cut-Off Wheel in my rotary tool to remove the pin arm of each clevis, leaving the arm with the hole to accept a mounting screw. These arms were bent to the correct angles, then attached to the vertical fin, horizontal stabilizer and fuselage points with stainless steel 2-56 machine screws, washers, and hex nuts.

The 1-1/2-in. Tail Wheel is a Du-Bro #150TW, and a pair of Du-Bro #350T 3-1/2-in. Treaded Wheels are under the wheel pants on my Stinger’s polished aluminum main gear. The main gear retains the wheels with 3/16” machine screws, and I used a Du-Bro #138 3/32”

Nickel-Plated Dura-Collar to capture the tail wheel.

A 16-Ounce Fuel Tank (Du-Bro #416) was mounted on a platform behind the firewall, and connected to the Du-Bro #334 Kwik-Fill Fueling Valve and engine nipples with Du-Bro 3/32-in. Silicone Fuel Line. I also added a #M021 Head Lock Remote (glow plug connector) from Sullivan Products in Baltimore, Maryland to simplify glow starter connection. The business end of the engine was completed with a Zinger 14x6 Propeller, and capped with a beautiful 4-in. Spinner from Tru-Turn Precision Model Products by ROMCO Manufacturing in Deer Park, Texas.

With all of these accessories temporarily mounted and properly twitter.com/rcflyernews

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Du-Bro 3-1/2-in. well-made Treaded Wheels are under these fiberglass wheel pants.

7

This is a beuatifully crafted Machined Aluminum Spinner from Tru-Turn Precision Model Products.

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AirBorne Models 1/4-Scale Female Pilot with Hair, Headset ,and Microphone give the cockpit a nice finish.

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Sullivan Dynatron Starter, McDaniel Metered Ni-Starter and JR 12X Transmitter complete the package.

adjusted, I fitted the ABS turtle deck, wing, and tank compartment covers, and cut the ABS cowl for the Enya R120. I glassed the inside of each of these ABS components with 2-ounce cloth and BSI FinishCure epoxy resin. Fortunately, I had purchased a “just-in-case” cowl and a pair of fiberglass wheel pants from Fiberglass Specialties at the Toledo RC Expo some years ago, and later cut that cowl to accommodate the more aggressive Saito 180. Finishing time at hand, I removed the engine, RC gear, and all of the mechanical accessories, and gave the bare airframe components a thorough sanding, beginning with #80-grit paper on a Great Planes® Easy-Touch Bar Sander, followed by #100, 150, rcflyernews.tumblr.com

220, 320, and 400. I sanded the ABS and fiberglass components with #220, 320, and 400. After vacuuming and tack-ragging, the ABS and fiberglass parts received two coats of Top Flite® LustreKote White Primer, followed by two mist coats, one wet coat of LustreKote Jet White paint, and two coats of LustreKote Crystal Clear.

I covered the wooden airframe components with one my favorite iron-on film coverings: the littlepublicized ToughLon film from AirBorne Models in Livermore, California. I chose #STL100 White, #STL311 Ferrari Red, and #STL 314 Fuchsia to give the model an eyepopping color scheme that would yield a solid visual connection in the

air. A 1/4-Scale Female Pilot with “Realistic” Hair, Headset and Mic (#102125D yellow) from AirBorne Models was installed, then the canopy was cut to fit and attached with Zap® Formula 560 Canopy Glue

by Pacer.

Finishing steps complete, I reinstalled the engine and RC gear, and reassembled all of the accessories, and after nearly 35 years and an overnight charge of the RC system, my Stinger 120 finally made its maiden flight.

MAIDEN FLIGHT

My field accessories for the Stinger and many other models include a Du-Bro #907 Fillin Station, Du-Bro #666 Kwik-Start Glo Plug Igniter and Subscribe @ RCSportFlyer.com

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Charger, or a #Mcd201 McDaniel R/C Products Metered Ni-Starter and Charger from Sonic-Tronics, Inc. in Elkins Park, Pennsylvania. These are complemented by a sturdy Du-Bro #701 Standard 4-Way Socket Wrench that I am certain will never fail in the next 100 years.

Nothing starts a model airplane engine with greater authority than a #S603 Dynatron or #S651 Magnatron Starter from Sullivan Products, especially when they’re complemented by a Sullivan #S642 Battery Box and a good-quality 5S

or 6S LiPo battery. My glow fuel of choice for casual flying is Byron #3130138 AeroGen2 Premium 18: 15% nitro with an 18% blend of castor and synthetic oils.

I’ve been flying My Lanier Stinger 120 for a few months now, and other than the Du-Bro Heavy Duty Servo Arms, the only changes made after its initial flights were the engine upgrade to the Saito FA-180GK, and a Zinger 16x10 propeller. The Stinger is truly fun to fly, and has become my go-to airplane for everyday nitro burning.

VENDORS

LANIER R/C STINGER 120 & DU-BRO PRODUCTS Airborne Models airborne-models.com Bob Smith Adhesives bsi-inc.com Byron Originals byronfuels.com Dave Brown Products dbproducts.com Du-Bro RC dubro.com Fiberglass Specialties fiberglassspecialtiesinc. com Great Planes greatplanes.com Horizon Hobby horizonhobby.com Robart Manufacturing robart.com Spektrum RC spekrumrc.com Sonic-Tronics sonictronics.com Sullivan Products sullivanproducts.com

10

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My Stinger 120 is covered in AirBorne Models ToughLon film and painted with Top Flite LustreKote white and clear.

RC FLYER NEWS • February 2018

Tru-Turn Precision Model Products truturn.com

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Aerotow 2018

Where: Weaver’s Airfield, Othello, WA

Spring Aerotow 2018 When: May 4 – 6 Time: Friday & Saturday 9:00 a.m. to 5:00 p.m., Sunday 9:00 a.m. to 3:00 p.m.

Type: Gliders and sailplanes of any size to be towed to altitude for soaring.

Awards: Longest flight, 1-hour flights, and 30-minute flights.

Event Director: Wil Byers — wil@rc-sf.com Entry Fee: $20

Fall Aerotow 2018 When: September 14 – 16 Time: Friday & Saturday 9:00 a.m. to 5:00 p.m., Sunday 9:00 a.m to 2:00 p.m.

Type: Gliders and sailplanes of any size to be towed to altitude for soaring.

Awards: Longest flight, 1-hour, and 30-minute flights, informal GPS racing Event Director: Don Bailey – dgliderguy@gmail.com Entry Fee: $20

Info: weaversrcairfield.com

CESSNA

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RC FLYER NEWS • February 2018

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L-1 9 B I R D D O G DESIGNED TO SNIFF OUT THE ENEMY

BY HANS-JÃœRGEN FISCHER

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CESSNA L-19 BIRD DOG

I

t was August 1949 when the Cessna Aircraft Company learned the U.S. Army was searching for a replacement for its aging fleet of fabric-covered Piper L–4 Grasshoppers and Stinson L–5 Sentinels. Cessna immediately became motivated to be part of an upcoming aircraft evaluation program, which was scheduled for the following April at Wright Field in Dayton.

Cessna rushed to be ready! The specification required the aircraft to take off and land over a 50-foot obstacle in a distance of 600 feet or less, and at gross weight.

To create such an airplane, they mated the empennage of a Cessna 195 to the wings of a Cessna 170B, and then to a new fuselage design. Cessna’s prototype was built in 90 days! Its maiden flight was December 14, 1949.

History underscores that the L-19 bested Piper, Taylorcraft, and Temco aircraft entries.

Sadly, on June 25, 1950, the North Korean Army crossed the thirty-

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RC FLYER NEWS • February 2018

eighth parallel. Suddenly, there was a demand for the Cessna’s Model 305, better known as the L–19 Bird Dog. The name came from the fact that the L-19 enabled pilots and the rearseat observers to find enemy ground positions, sniffing them out from above.

Importantly, enemy ground troops feared the L-19s because they knew if they were overhead it meant they had been spotted. Even though L–19 is slow and was vulnerable to ground fire, the enemy often would not shoot at it for fear of revealing their position.

In 1962 America became involved in the Vietnam conflict. The aircraft was subsequently designated by the Department of Defense Cessna O-1— the L for liaison became the O for observation.

During the conflict, enemy targets got marked by firing white-phosphorous smoke rockets at them. The rockets burst on impact, generating intense white smoke clouds that were visible for miles, which would then aid the bombers or ground attack aircraft.

The L–19’s cockpit is roomy, with lots of visibility for pilot and observer— superb for a single-engine airplane. It is also designed such that the upper half of the cabin door swings up and out, similar to that of a Piper J–3 Cub. The cockpit design helped make the Bird Dog an effective observation and reconnaissance aircraft.

An amazing story of the Bird Dog’s adeptness involves Maj. Bung-Ly. He was a South Vietnamese Air Force pilot.

On April 29, 1975 he hauled his wife and five children in a Bird Dog as a way to escape the North Vietnamese during the takeover of South Vietnam. He flew his Bird Dog from Con Son Island, skirted enemy ground fire, and then to the Gulf of Thailand in hope of finding a rescue ship. After a long overwater flight, and while getting low on fuel, Bung-Ly found the USS Midway Aircraft Carrier. Its flight deck was filled with helicopters. He circled the ship and then flew low over the deck, dropping a note. He had pleaded for deck room for a landing. The Midway’s

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55

CESSNA L-19 BIRD DOG

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RC FLYER NEWS • February 2018

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57

CESSNA L-19 BIRD DOG

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RC FLYER NEWS • February 2018

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an attempt to disrupt the enemy from springing its trap. Sadly, Wilbanks was shot down during this engagement.

However, he was posthumously awarded the Congressional Medal of Honor for his true heroism.

While there are many more stories that detail how effective the L-19s were in action, Cessna ended production on January 22, 1957 having built 3,395 Bird Dogs. Cessna provided L-19s to military forces of many countries in the free world.

There currently are about 300 L-19s registered in the United States. While many are owned by warbird aficionados, others have worked as glider tugs and for search-and-rescue platforms for the Civil Air Patrol.

You can learn more about Bird Dog aircraft by pointing your browser at ibdaweb.com. It is the site the International Bird Dog Association.

The association also publishes a digital newsletter called The Monthly Bark.

SPECIFICATIONS

captain, L.C. Chambers, felt the seven occupants of the Bird Dog would not survive a sea ditching, so he ordered $10 million worth of Huey and Chinook helicopters to be scuttled overboard.

Bung-Ly shot at landing on the rainsoaked, windswept flight deck. Bird Dog 51-4981 landed safely and is now in the U.S. Naval Aviation Museum in Pensacola, Florida. Bung-Ly’s family was subsequently sponsored by the crew of the Midway to become U.S. immigrants.

The Bung-Ly’s now live near Pensacola.

Another example of the Bird Dog’s prowess occurred on February 24, 1967, when USAF Capt. Hilliard A. Wilbanks spotted a South Vietnamese hillside marked by camouflaged foxholes, which were only detected by his trained eye. The Viet Cong lay in wait, hoping to ambush an unsuspecting South Vietnamese Ranger unit as it approached. Flying his Bird Dog low and slow, with only an M-16 rifle as his weapon, Wilbanks made repeated passes over the VC position in

Crew : One/Two Length : 25 ft 10 in.

Wingspan : 36 ft 0 in.

Height : 7 ft 4 in.

Wing area : 174 ft² Empty weight : 1,614 lb Max. takeoff : 2,430 lb weight Powerplant : Continental O-470-11 flat six, 213 hp Maximum : 115 mph airspeed Cruise : 104 mph airspeed Stall airspeed : 54 mph Range : 530 miles Service : 18,500 ft ceiling Rate of climb : 1,150 ft/min Takeoff : 50 ft / 560 ft Landing : 50 ft / 600 ft

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59

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W AC O W M F -5

90 INCHES OF BEAUTIFUL BIPLANE

BY WENDELL HOSTETLER

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RC FLYER NEWS • February 2018

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T

he WACO Aircraft Corporation tells it best, “The new WACO YMF-5D is the finest biplane in the world, featuring unequaled quality, performance, and style. While this new FAA certified aircraft maintains its classic lines and beauty, its systems and avionics are modern and feature advanced Garmin IFR (instrument flight rules) or VFR (visual flight rules) rcflyernews.tumblr.com

instrumentation.

Your WACO is built from the ground up to your specifications, including color and paint scheme, leather and carpet, and avionics equipment.”

F SERIES Originally produced between 1934–1935 by the WACO Aircraft Company of Troy, Ohio, the WACO YMF-5 is one of the finest open-cockpit biplanes.

Its clean lines show off its classic biplane roots, while its 275-hp radial engine give it performance plus.

When production of the WACO YMF Classic was reestablished in 1986 by the Classic Aircraft Corp in Lansing, MI, many updated features were integrated into the design.

Utilizing input from pilots all over the world, the WACO YMF-5 Super was developed.

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63

WACO WMF-5

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RC FLYER NEWS • February 2018

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WACO WMF-5

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RC FLYER NEWS • February 2018

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67

WACO WMF-5

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RC FLYER NEWS • February 2018

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The current production aircraft offers a complete array of updated features making it the finest sport biplane anywhere. It comes outfitted with leather seats, burl-wood trim, a cabin heater, and a constant speed Hamilton propeller for aerobatics. It can fly for over four hours and perform aerobatics with two passengers in the front cockpit.

PLAN

FULL-SCALE SPECIFICATIONS

For 76 years plus, the WACO YMF5 has been a milestone in biplane design, engineering, performance.

The plan has been drawn to replicate that of the full-scale aircraft such that you’ll get as much joy out of flying the model as pilots do from flying the classic full-scale aircraft.

The plan includes all the fuselage station, engine positioning, and landing gear details. The two-sheet set provides complete details for upper and lower wings as well as the horizontal stabilizer.

You’ll get both sheets printed on good quality paper, with the drawings done in black ink.

Engine : Jacobs R755B2 Horsepower : 275 HP @ 2200 RPM Propeller : Constant Speed Hamilton-Standard 2-blade 20-15, 93in. diameter Length : 23 ft 10 in.

Height : 8 ft 6 in.

Wingspan : 30 ft 0 in.

(Upper) Wingspan : 26 ft 10 in.

(Lower) Empty Weight : 1,985 lb Baggage : 100 lb Capacity Gross Weight : 2950 lb

Hostetlersplans.com Phone: 330-682-8896 E-mail whplans@aol.com

MODEL SPECIFICATIONS

VENDOR

Seats : 3-place open cockpit Scale : 25 percent Wingspan : 90 in.

Length : 69.75 in.

Wing area : 2101 in.2 Weight : 28 to 30 lb Power : 62 to 80 cc

Cruise speed : 122 mph Fuel standard : 48 US gal Fuel : 15 US gal/hr consumption Empty weight : 1,155 pounds Maximum gross : 1,700 pounds weight Useful load : 965 lb

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Air, land or water—genuine Spektrum products offer the experience you want.

See for yourself at SpektrumRC.com

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©2017 Horizon Hobby, LLC. DSMX, DSMR, AS3X, SAFE, AVC and the Horizon Hobby logo are trademarks or registered trademarks of Horizon Hobby, LLC. The Spektrum trademark is used with permission of Bachmann Industries, Inc. All other trademarks, service marks and logos are property of their respective owners. Actual product may vary slightly from photos shown. 56571

CARBON-Z P2 ®

PUT ON AN EYE-POPPING AIRSHOW!

BY STAFF

This airplane looks like a hotrod on the ground. It is definitely a hotrod in the sky. You’ll delight in flying this biplane!

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RC FLYER NEWS • February 2018

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PROMETHEUS

A

irshow pilot, Skip Stewart is known for putting on spectacular performances flying his full-scale P2 Prometheus biplane. His all-carbon aircraft is part Pitts Special and lots of Skip Stewart vision. His airshow machine started as a Pitts S-2S. Prometheus was then modified to create a impressive airshow airplane! Skip’s color scheme for the P2 is copied after an American hotrod type design. Importantly, with 400-horsepower engine tucked inside the cowl, and the mated, huge, three-blade propeller blasting air, gives his show machine a climb rate of 4,000 feet per minute. The aircraft will also do 300 mph, but with a stall speed of just 58 mph. rcflyernews.tumblr.com

Further, Skip’s P2 Prometheus has a range of 405 miles. It is an amazing airplane, to say the least.

Flying his P2 Prometheus, Skip puts on stunning aerobatics. He is the first pilot to fly his P2 Prometheus under a jumping motocross motorcycle rider—scary but real! It is jaw-dropping to see Skip aerobatics, which includes nearly hovering the airplane as well as what appears to be flying the airplane almost sideways down the runway. He also flies his P2 Prometheus on a knife-edge, almost touching the wingtip on the tarmac.

Then too, he sideslips the airplane so low and slow that a motorcycle rider can grab a wingtip. As you would expect,

his shows are performed around the world from the USA to China—his performances are that good.

CARBON-Z MODEL E-flite’s P2 Prometheus opens the door to your Skip Stewart like airshow performances. The E-flite Carbon-Z® P2 Prometheus biplane is capable of performing Skip’s signature moves and does them with power to spare and control authority that’s a pilot’s dream thanks to AS3X technology.

Plus your P2 Prometheus biplane is going to assemble in less than an hour, which is about how long it takes to charge the LiPo battery pack.

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CARBON-Z® P2 PROMETHEUS

to discover that E-flite and Mike McConville have designed a ton of performance into this model—it is mind-blowing on high-rate controls.

The fact is, this is one fun and exciting airplane to fly.

FEATURES

• Skip Stewart Airshows licensed adaptation • Highly-tuned airframe design by Mike McConville • Lightweight Carbon-Z® construction • E-flite® 50-size brushless motor • High-voltage 70-amp speed controller

Our Spektrum DX9 transmitter marries well to the Prometheus biplane, and it provides on/off control of the AS3X system too.

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RC FLYER NEWS • February 2018

• Fits 5000-mAh 6S 22.2-volt LiPo battery (sold separately) • 15 x 5.5, 2-blade propeller • Spektrum™ 6-channel AR636A DSMX® receiver • Integrated AS3X® technology • Spektrum® metal-gear mini servos • High-strength aluminum landing gear • Large control surfaces, with double-beveled hinge lines • Detailed finish factory complete • Pilot installed in cockpit

IN THE AIR

Our E-flite® Carbon-Z® P2

Prometheus aircraft is pretty amazing! With your transmitter set on high-rate controls you best be a competent aerobatic and 3D pilot because this airplane is high-powered performance. While the manual settings are set well, we programmed our transmitter to have three control rates. Rate number one are for mild performance that we believe would be suitable for an advanced intermediate pilots because they tone down the model. Rate number two are for aggressive aerobatics, which you’d better be an advanced pilot to fly. While rate setting three are for the pilots that are capable of 3D

The color scheme of the E-flite Prometheus is an exact copy of the one on the full-scale air show airplane, which is flown by Skip Stewart.

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Sitting on the runway, the Prometheus looks like a vintage hotrod as you’d see street ready to race. This one flies like a hotrod.

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CARBON-Z® P2 PROMETHEUS

Even all the full-scale sponsors’ decals adorn the fuselage of the Prometheus model— they are NICE finishing touch!

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RC FLYER NEWS • February 2018

All control surfaces come equipped with ultra-smooth action ball-link rod ends, which provide smooth, precise control.

Spektrum A500 metal gear equipped servos are used to drive the control surfaces. They’ve performed well.

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E-flite’s Prometheus in a near exact copy of the full-scale airplane’s planform and its configuration.

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The tailwheel for this model provides excellent ground handling and should hold up well under normal landings.

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77

CARBON-Z® P2 PROMETHEUS

Prometheus’ wing struts are designed with quickconnect fittings. Notice the Mike McConnville design logo adorning the struts too.

Here you can see how the quick-connect fittings work. You simply push them into place and then push them up into the slots to lock in place.

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RC FLYER NEWS • February 2018

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A 15 x 5.5-in. propeller provides thrust with plenty of blast air over the control surfaces for hovering maneuvers.

The model is powered by an E-flite BL50 outrunner motor, which has a Kv value of 525 for the 6S battery pack.

You’ll want to power the model with a 6S 4400–6000-mAh 30C LiPo battery pack, or better for best performance.

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CARBON-Z® P2 PROMETHEUS

If you have the skills, you can copy the maneuvers flown by Skip Stewart or improvise your own show routine.

and precision aerobatics. In high-rate settings, we found this machine to be absolutely thrilling to fly—you best be ready for serious performance. In fact, we recommend having at least three battery packs because you’re going to want lots of airtime on this attractive biplane.

It is true when the boilerplate on the E-flite website says, “Mike McConville adapted the unique design as a model with performance that’s as inspirational as Skip’s original.” No kidding! The roll rate on the airplane’s high rate setting is phenomenal—we mean PHENOMENAL! The generoussized control surfaces will let you pop it up into a hover and hang it there—do not try this if you are not an experienced pilot because it does 80

RC FLYER NEWS • February 2018

take a bit of air to recover from any mistakes. Alternately, hit the throttle and your P2 Prometheus is headed for the sky.

One thing we did find that was a bit of drawback with the model is that the color scheme can trick your eye a bit if you are flying it a distance, so pay close attention to its orientation, else be ready for some foam repairs.

Our model came as a BNF Basic version with AS3X® Technology. The advanced AS3X (Artificial Stabilization – 3-aXis) system comes integrated in the Spektrum™ 6-channel AR636A receiver. When initialized, AS3X gives the model a stabilized feel. As E-flite says, “It works behind the scenes to help counter the effects of wind and turbulence by combining multi-axis

sensing with specially tuned flight control software.” It’s true. The result is, AS3X gives the model a largeairplane feel to the pilot, which makes it more enjoyable to fly, even if there is a bit of wind.

Landings are not an issue either.

You’ll pull the throttle back and let the model settle to the runway. We’ve found that adding about 10 percent power as the model approaches the runway will result in smooth bouncefree landings as well as touch-andgoes. You’ll want to “stick” the model with a touch of down as the main gear touches the runway. That will stop the bounce of the gear’s reflex.

SYNOPSIS

Because this model has been out twitter.com/rcflyernews

This airplane has an awesome presence in the air as you can tell by this photo. It roll ratel is simply stunning on high control rates.

Apply power and you’ll find that the Prometheus will literally leap into the air and climb aggressively! rcflyernews.tumblr.com

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CARBON-Z® P2 PROMETHEUS

From every angle the E-flite Prometheus looks great in the air. You can fly it from from mild to wild, depending on the controls’ rate settings.

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RC FLYER NEWS • February 2018

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DISTRIBUTOR SPECIFICATIONS

Horizon Hobby 4105 Fieldstone Road Champaign, IL 61822 Phone: 217-352-1913 Horizonhobby.com

Scale : 20 percent Wingspan : 48.0 in. (1219 mm) Overall : 49.3 in. (1252 mm) Length Wing Area : 840 in.2 (54.2 dm2) Weight : 17.0 in. w/ tailwheel Weight : 7.0 lb (3.2 kg) Motor : BL50, 525 Kv brushless outrunner Servos : (4) 25-gram mini metal-gear Propeller : 15 x 5.5, 2-blade ESC : 70-amp brushless Battery : 5000-mAh 6S 22.2-volt 30C Flight : ≈4 – 6 minutes Duration Pilot : Advanced level CG : 5.2 in. back of top wing leading edge Environment : Outdoor Assembly : ≤1 Hour Price : $299.99 (#EFL10950)

We set our Promethues up with three control rates: takeoff, aerobatics, and 3D flight, so we can adjust to our needs and wants.

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CARBON-Z® P2 PROMETHEUS

for a while, we would recommend you RUSH to e-fliterc.com to get one.

E-flite has marked this model down to clear our inventory, so you’re going to get a great buy at just $299.99.

At this great price, you’ll get a model that has Carbon-Z® Technology, which means chamberedwing construction that significantly 84

RC FLYER NEWS • February 2018

reduces weight while increasing rigidity to comparable all-wood construction. Plus the Spektrum 6-channel DSMX® receiver comes with integrated AS3X that’s factory programmed. Then too, the E-flite 50-size brushless motor delivers the thrust to hover the model, and for it to accelerate vertically.

Lastly, the closer on this buy is the quick and easy assembly. The control surfaces’ linkages simply snap into place, the battery compartment is ready to accept the 6S 5000-mAh LiPo battery, and the wing struts pin in place. Finally, while we flew this model with a Spektrum DX9 transmitter, you could use the DX6, twitter.com/rcflyernews

Fun is flying it like you’re an air show pilot and just taking this model to the outside of the performance envelope.

which is a super affordably priced unit.

Don’t even ask if we’re happy with this model. The answer is, go figure!

You get this kind fun at such a great price—YES!

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CONTROL THROWS

Keep about 10% power on during the landing approach and the Prometheus lands smoothly, and does fun touch-no-goes.

Distributor

High (Expo)

Low (Expo)

Ailerons

100% (15%)

55% (10%)

Elevator

100 (20%)

37% (12%)

Rudder

125 (40%)

70% (20%)

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85

CARBON-Z T-28 BNF W/ AS3X CLIMB INTO THE COCKPIT OF THIS HISTORIC TRAINER

BY STAFF

86

RC FLYER NEWS • February 2018

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N

orth American Aviation’s T-28 Trojan is a piston-enginepowered military trainer aircraft. It was employed by the U.S. Air Force and Navy beginning in the 1950s as a trainer. The T-28 was also used as a counter-insurgency aircraft, primarily during the Vietnam War. It is now mostly used for aerobatics and as a warbird.

The aircraft was employed by the U.S. Navy at the Whiting Field Naval Air Station in Milton, Florida, where it trained

naval aviators. The T-28’s military career ended when it was replaced by the T-34C turboprop trainer.

Interestingly, in 1963, a pilot — Lieutenant Chert Saibory, a Thai national, of the Royal Lao Air Force — defected with a T-28 to North Vietnam. Saibory was imprisoned by the North Vietnamese. His aircraft was subsequently taken, and within six months it was refurbished and commissioned into the North Vietnamese Air Force as their first fighter.

T-28s were provided to

the Army of the Republic of Vietnam Air Force in support of their ground operations. It saw extensive service in Vietnam Air Force, and in the Secret War in Laos. Notably, a T-28 Trojan was the first U.S. fixed-wing attack aircraft lost during the war. Capt. Robert L. Simpson, USAF, Detachment 2A, 1st Air Commando Group, and Lt. Hoa were shot down by ground fire on August 28, 1962, while flying close air support — neither survived. The USAF lost 23 T-28s during the war, with the last two occurring in 1968.

E-flite Carbon Z T-28 is a very well-made, molded foam airplane. It is suitable for entry level scale competitions too. rcflyernews.tumblr.com

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CARBON Z T-28 BNF W/ AS3X

This ARF comes extremely well packaged against shipping damage, with all the parts secured in place.

E-FLITE’S T-28 We were attracted to the E-flite T-28 because it is big enough to be entered in a Sport

Scale contest—its 78-in. (198-cm) wingspan is ideal. Plus its scale planform and trim scheme as it comes out of the box would even provide a few static points during judging. Then too, modelers could detail it with other color schemes from the many variations found on full-scale T-28s.

We also like that it’s an electricpowered airplane, which means no mess in the shop’s old modelairplane-hauling van.

Flight Report

The steerable nosewheel is engineered well against hard landings. We tested it during a couple less that beautiful landings.

The model is powered by a 60-size 500 Kv E-flite brushless outrunner motor—plenty of climb power.

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RC FLYER NEWS • February 2018

There is absolutely no doubt that the 60-size brushless outrunner motor combined with the 70-amp switching mode electronic speed controller that is married to the 6S 22.2-volt 5000-mAh 30C LiPo battery makes power! When you hit the “gas” on this model, you’ll feel the power as the T-28 accelerates down the runway and climbs briskly into the air. The power system gives you the confidence to pull the model’s nose up and head for the clouds. Also, we found the rudder, in combination

We’re very impressed with the electricpowered retracts that come pre-installed in the model. twitter.com/rcflyernews

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The flaps’ servos come installed with linkages. They may require minor adjustment before flight.

The ailerons’ servos come pre installed, with control linkages. You’ll need to adjust them before flight.

As with the flaps and ailerons, the elevator’s servo comes installed. There was no adjustment required.

Here you see how the rudder’s servo drives the surface. It is well engineer, so control is absolutely positive!

All the servos’ lead wires come labeled from the factory, which speeds assembly much. You pretty much don’t need the manual.

The control surfaces all use Spektrum 25 gram metal gear servos—plenty of torque too.

Their resolution is quite good as well.

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CARBON Z T-28 BNF W/ AS3X

You’ll be impressed by how well this airplane’s stall speed drops when you lower the flaps to their full down position.

with the nose gear, keeps the model running straight down the centerline — give it a push test before the first takeoff to make certain the nose wheel is adjusted properly. We also use about 25 degrees of flaps, which makes takeoffs even easier.

Once in the air, you’ll suck up the landing gear and feel the model come alive. The big T-28 is an intermediate pilots dream warbird. While you can use AS3X to make it nearly a beginner’s model, we switched it off to enjoy the true performance of this big warbird. You’ll find it performs loops, rolls, stall turns easily, while inverted flight is doable, but not its preferential mode. Spins are fun too 90

RC FLYER NEWS • February 2018

While not 100% scale, the cockpit comes with a pilot installed, which we think adds to the model’s flight realism.

— just slow it down, pull the nose up until it stalls, hold the up elevator and add a bit of ailerons and rudder. It’ll impress you.

We enjoy how this model grooves in flight. It doesn’t do anything naughty, like dropping a wingtip in a high-gravity (G) turns. Rather, the T-28 just stays on step and flies thru the turn; albeit, you’ll want to manage the power as you put the model thru its paces to keep the airplane flying — after all any airplane will stall if you try to fly it outside its performance envelope.

We programmed the transmitter such that the model has about 60 degrees of down flaps for landing.

(We detail the settings in the assembly section.) With flaps down and the power pulled back the model slows extremely well. You’ll find that you’ll need to manage the ailerons and rudder because the flaps add enough drag and lift that the model is sensitive to bumps and gusts while on approach. The way we have the transmitter programmed for flaps, the T-28 maintains its angle of attack for approach, such that there is no worry of stall or nose-high approaches.

Landings, therefore, are quite uneventful. You’ll want to manage the elevator control as the airplane nears the runway and gets into ground effect. The low-wing configuration twitter.com/rcflyernews

Even the cowl has a plastic simulated radial engine installed, but there is still plenty of room for cooling air flow.

The motor turns a 14.75 x 10 two-blade propeller. You’ll be impressed by the climb performance of the T-28.

There is plenty of dihedral angle in the wings, which makes the model quite stable in flight. It kind of feels like a trainer.

The detailing on the T-28 is impressive on the ground and definitely in the air. You’re going to enjoy watching it make passes on the runway.

of the model will let it float, so you’ll need to pull the power all the way back as the wheels near the pavement to let it settle. The T-28 will then give you a superb touchdown.

Oh yeah, and ground handling with this airplane is a joy too.

Last, we have the flight timer set for seven minutes. At seven minutes we’re setting up for a landing. We’ve found this runtime consumes about 4000 milliamps from the battery, so there are plenty of electrons left for go-arounds if needed.

SYNOPSIS

The T-28 is a pilot-friendly scale warbird and military trainer. The rcflyernews.tumblr.com

BOX CONTENTS • Lightweight Carbon-Z construction fuselage & empennage • Two-piece, bolt-on wings and stabilizers • Plastic flat pin hinges for ailerons, flaps, elevator & rudder & elevator • Spektrum® AR636A AS3X receiver • 60-size brushless outrunner • 2-blade propeller • Seven metal gear Spektrum servos • Electric retracts installed, w/ two-piece gear doors • Scale landing gear strut details on nose gear • Scale detailing of cockpit and radial engine • U.S. Navy trim scheme applied NEEDED • 6S, 22.2-volt 3500 – 5000-mAh LiPo battery needed • Battery charger (Dynamite® Prophet™ Precept™ 80W LCD AC/DC used) • Spektrum DX6 minimum (DX9 used) • Intermediate piloting skill Subscribe @ RCSportFlyer.com

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stabilization, 3-aXis) system that comes built into the AR636A receiver will give you the confidence to make the transition. Truly, AS3X is pretty amazing and will help you stay out of those situations that would otherwise result in a crash. We still recommend an experienced copilot during training flights, but AS3X is technology that will assist you as a copilot.

About the only other thing we’d say is to buy one of these models before they’re completely sold out.

We’re certain you’ll find this model as much fun to fly as us. It looks superb in the air too.

Wingspan : 78 in. (198 cm) Length : 63 in. (162 cm) Wing area : 1073 in.2 (70 dm2) RTF weight : 12.0 lb (5.5 kg) Motor : 60-size, 500Kv, Brushless Outrunner Prop adapter : 10-mm shaft ESC : 70-amp Switching Mode Battery : 6S 22.2-volt 5000-mAh 30C LiPo Propeller : 14.75 x 10 2-Blade Radio : Spektrum®DX6 (min) DX9 used Receiver : Spektrum AR636 6-channel AS3X Receiver Servos : 16- & 25-gram Metal Gear

DISTRIBUTOR

Carbon-Z construction (composite foam with chambered interior design reduces weight and increases rigidity) is combined with Bind-N-Fly (BNF) configuration, so assembly is quick and easy — less than an hour. Programming is effortless as well because the ailerons’ and flaps’ servos use Y-harnesses, so using an inexpensive Spectrum DX6 is possible.

We like that the Carbon Z T-28 model comes out of the box with scale details, including a cockpit with pilot and instruments installed. Also, a dummy radial engine inside the cowl adds to the model’s ground appeal.

The linear-drive servo-operated retracts are a huge plus too — when the gear is retracted the model has more flight realism.

Additionally, if you want a big model, but don’t feel quite pilot proficient, Spektrum’s AS3X® (artificial ®

SPECIFICATIONS

CARBON Z T-28 BNF W/ AS3X

Horizon Hobby 4205 Fieldstone Rd Champaign, IL 61822 Phone: 800-338-4639 horizonhobby.com

Flaps : Yes Retracts : Yes, Nose & Mains Wing bolt : 5 x 55 mm Flight duration : ≈8 minutes Assembly : ≤1 Hour Price : $499.99 (#EFL1350)

From any angle the E-flite T-28 just looks superb.

Get one before they’re no longer available.

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ASSEMBLY

Programming our Spektrum DX9 was easy.

Just enter the system menu to navigate to set up the wing type.

For the BNF version, you’ll pick the wing type shown above because the model uses a Y-harness for the ailerons’ servos.

In the main menu, you’ll want to pick the Flap System to adjust the flaps for different switch positions. We have three set in ours.

We used Switch D so we could have flaps for cruise, takeoff, and for landing. Our settings are as shown.

There is not much to report in this section. As with other E-flite’s BNF models, the Carbon-Z T-28 assembles quick and easy. Follow the manual’s procedure because it will eliminate redoing steps. Besides, there are not many steps to complete.

You’ll need to install the carbon joiners in the horizontal stabilizer and then join the two halves to the fuselage. They’re held tight to the fuselage with two screws. You’ll need to connect the elevator and rudder pushrods — make certain the controls are centered once the receiver has been bound to the transmitter.

The wing halves are more of the same. You’ll install a carbon tube joiner in one halve and mate the other wing.

Then you’ll fit the wing to the fuselage, while at the same time you’ll feed the servos’ leads up through the fuselage for connections to the receiver in the next step. Note that the flaps and ailerons use Y-harnesses, so they only use one channel on the receiver. We recommend that you program your transmitter for two aileron servos and one flap servo in the System Menu. That’ll let you use Flap System in the main menu and add elevator compensation easily. When you use Flap System programming you can also set a deployment time — for our T-28 we’re using 2.8 seconds for full deployment.

You’ll want to install the propeller and the spinner next. Use a wrench and tighten well. You do not want it flying off in flight.

We’re using the recommended E-flite 6S 5000-mAh LiPo battery. You’ll definitely want to put hook-n-loop tape on the

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pack to secure it in place along with the models tie straps.

Then take the time to set the models center of gravity (CG) properly. Do it in the shop, not at the airfield where the wind can affect the model’s attitude during adjustments. Then use a Sharpie® pen to mark where the pack must be positioned to keep the CG the same from one flight to the next.

Because the servos for the ailerons and flaps are using Y-harnesses you can’t do much in terms of adjusting differential or tweaking the flap settings. You must, must, however, adjust all the controls for best centering before you use the transmitters digital trims. It’s easy, so spend the 10 minutes it will require to get them set right — done right is much better than done quickly.

That is about it for the assembly. At the airfield, we recommend you do a push test to make certain the nose gear will have the model tracking straight down the center line.

You’ll also want to do a good preflight.

Oh, and we recommend you program your radio with Throttle Cut. You can pick any switch — just do it. Note that when you energize the receiver you’ll want to have the Throttle Cut set to motor on. If not, the motor will likely idle when you toggle the transmitter switch to the motor-on position.

Finally, look at the photos to see how we set the Flap System. It is easy to do and will help lower your pilot load during landings.

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CARBON-Z CESSNA 150 2.1M BNF BASIC A QUINTESSENTIAL AMERICAN AIRPLANE YOU CAN FLY

BY WIL BYERS

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RC FLYER NEWS • February 2018

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E-flite’s Carbon-Z Cessna 150 2.1M is Horizon’s answer as a model to the quinessential full-scale airplane. It is an excellent flyer.

T

he Cessna 150, at 23,839 manufactured, is fifth most produced civilian aircraft regarding units. It is a two-seat, tricycle landing gear general aviation airplane, which was primarily designed for flight training and personal use. The Cessna 150 was sold as the Basic 150, Commuter, Commuter II, Patroller, and Aerobat models.

Cessna’s 150 development began in the mid-1950s.

Cessna wanted to replace their 140 model, which they stopped making in 1951. The Cessna 150 prototype had its rcflyernews.tumblr.com

maiden flight on September 12, 1957. Production started at Cessna’s Wichita, Kansas plant in September 1958.

The 150 design employed the use of tricycle landing gear, which was better for training than that of the tail wheel configuration of the Cessna 140. Cessna also replaced the rounded tips of the wings, horizontal, and vertical stabilizers with squared-off profiles. Also, the 140 flaps were replaced with larger Fowler-type flaps that extend 40 degrees. And, the Americanmade 150s were powered

by the reliable Continental O-200-A 100-horsepower engine.

SCALE MODEL E-flite’s Carbon-Z® Cessna 150 is an attractive, welldesigned and made scale rendition of the venerable full-scale 150. This foam model is an electric-powered airplane with a 50-size outrunner motor installed in the cowl. As a BindN-Fly® Basic version it includes motor, speed controller, sport servos, and a Spektrum™ AS3X® receiver, with optional SAFE® Select technology Subscribe @ RCSportFlyer.com

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CARBON-Z CESSNA 150 2.1M BNF BASIC

As with all E-flite ARF kits, their Cessna 150 comes packed in foam very well such there is no damage during the shipping.

These are the basic components as they come out of the box. You’ll like the level of detail molded into this model.

These are the parts you’re going to need to assemble on your Cessna 150. It should not take you more than hour to complete.

A food container was used to contain the parts on the workbench while the model was being assembled—it works great.

installed. It has an 84-inch wingspan.

Additionally, the E-flite BNF version has pre-installed LED landing lights, a shock-absorbing nose gear, functional flaps, and wheel pants. E-flite has done an excellent job of molding in panel lines, plus control surfaces with simulated corrugations to replicate those on the aluminum airframe of the full-scale aircraft.

NEED TO COMPLETE

• 6S 4000 – 7000-mAh ≥30C LiPo battery pack • Dynamite Prophet Sport Plus 50W AC/DC Charger • Spektrum® transmitter (6-channel min [DX9 used])

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RC FLYER NEWS • February 2018

• Carbon-Z Float Set - Optional (#EFLA5600)

IN THE AIR

E-flite made field assembly quick and easy with their hands-free servo connections, which mate the servos’ leads and LED lights connectors to the fuselage when the wings are fastened. You’ll discover this system works well, and you will not need any tools either because the wings are fastened by thumb screws.

Straight up, the E-flite Cessna 150 has the same docile handling characteristics as its full-scale counterpart.

On the ground, the tricycle landing

gear makes ground handling fun, not challenging, even in crosswind conditions. The shock-absorbing nose gear does truly absorb the bumps in the runway, grass or pavement.

Note, you’ll want to do roll tests on the model before its first powered takeoff to make certain the nose gear will keep the airplane tracking straight down the runway. While the 50-size outrunner motor and 60-amp speed controller, on a 6S 5000-mAh LiPo battery pack, makes plenty of power for steep climbs.

Combine the power with flaps and the Cessna 150 delivers impressive short-field takeoffs. Even so, you can throttle the airplane for relaxing twitter.com/rcflyernews

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You’ll need to fasten the main landing gear to the airplane with six allen-head screws. The receptacle for the floats’ servo plug.

The hardware used for the connections to the control surfaces is top quality, as is shown here for the elevator.

The steerable nose gear has a built-in shock absorber, which works well at taking a beating during hard landings.

This photo shows the positive connection to the rudder’s control horn. You’ll feel this type of detail when model is in the air too.

Check it out! E-flite made the servos’ wing connections the quick-connect type. You slide the wing on and they mate perfectly.

The BNF version comes with a Spektrum DSMX 6-channel receiver installed along with all the servos ready for flight.

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CARBON-Z CESSNA 150 2.1M BNF BASIC

The 60-amp ESC is tucked neatly up under the forward hatch, just ahead of the LiPo battery pack’s position.

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RC FLYER NEWS • February 2018

Here you see the quick-connect system that E-flite employs on the struts of the Cessna 150. It works extremely well.

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You’re going to get landing lights pre-installed in this model. They add that extra touch of scale detailing to this 84-in. wingspan model.

Here you see the top access hatch you’ll use to get access for attaching the wings, plus the model has twin radio antennas.

The Cessna 150 uses thumb screws to fasten the wings to the fuselage, so no tools are needed at the airfield.

You’ll discover the model comes with left and right landing lights, plus there are two in the bottom front of the cowl.

pattern maneuvers that just enjoyable to fly. This airplane delivers stellar touch-and-go landings. However, you must manage the throttle to keep it away from a stall such that it eases into ground effect. Again, the motor makes plenty of power for huge, round loops. Also, I found the model does nice rolls, but you’ll need to coordinate the elevator and rudder to keep it tracking straight. The airfoil on the Cessna 150 is not meant for inverted flight, just as that of the fullscale aircraft. You can fly it inverted but you’re going to find you’ll be using plenty of down elevator control as well as applying extra power.

Artificial Stabilization 3-aXis rcflyernews.tumblr.com

(AS3X) is built into the receiver, with optional SAFE® Select technology that you can turn on and off via a transmitter switch. Consequently, the model has both the stability of its high-wing configuration combined with the smooth response of AS3X. When activated AS3X smooths out the effects of wind, turbulence, and thermals. It truly does “make you feel like you’re flying an expertly tuned aircraft.” When activated, AS3X will give even the intermediate pilot the confidence to try flight maneuvers they would otherwise not.

You’ll discover that AS3X provides pitch and bank angle limits. These will prevent the aircraft from rolling

or pitching upside down. They also prevent excessive climb or dive angles during takeoff and landing.

Furthermore, there is automatic self-leveling built in, which will immediately return the aircraft’s wings to level when the sticks are released.

We found that on the 6S 5000-mAh pack the power system consistently delivers 7-minute flights with energy to spare for go-arounds.

I’ve logged about 20 flights on the model as of this article. I found that often the packs still had 30 percent of their charge capacity left after logging a flight.

While I live only a about a block from the lake and I purchased the Subscribe @ RCSportFlyer.com

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CARBON-Z CESSNA 150 2.1M BNF BASIC

100

Its cowl provides plenty of cooling air flow over the 50-size motor and the ESC. Notice the landing lights below the propeller too.

The ailerons are ribbed just as you would find on the full-scale Cessna’s aluminum control surface. It’s is nice detailing.

The rudder has a mass-balance tab, and there is a landing light on the top of the fin and at the back of the rudder.

You don’t need a high-dollar transmitter. The DX6e provides plenty of control programming for the E-flite Cessna 150.

RC FLYER NEWS • February 2018

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A 50-size motor in combination with a 60-amp ESC and 15 x 7-in. electric propeller makes lots of thrust.

You’ll want to adjust the model’s nose gear with some roll tests before you commit it to the first takeoff run. rcflyernews.tumblr.com

In the air, the E-flite Cessna 150 is a joy to pilot. It handles very well and does not do anything unpredicable like tip stalls, etc.

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101

optional float set and accessories, I’ve not had a chance to fly it off floats as yet. I can, however, tell you that set is designed to connect to the model quickly. It should not take more than about 30 minutes to make the change thanks to the water rudder servo being installed, and the quick-connect design of the airplane!

that this is a scale model for the masses. I’ll even go so far as to say it could be used as a trainer, but only with an instructor pilot acting as copilot—especially during those first few flights.

I give this model a rating of six charged LiPo packs. Buy an E-flite Cessna 150! You will be glad you did.

Wingspan : 83.7 in. (2125mm) Length : 61.8 in. (1570mm) Wing area : 1053 in.2 (68 dm2) Weight : 8.9—9.9 lb (4.0 - 4.5 kg) Motor : 50-size outrunner Radio : 5+ channels Propeller : 15 x 7 electric Spinner : 62 mm ESC : 60-amp brushless Battery : 4–6S 4000—7000-mAh LiPo (needed)

SYNOPSIS

Flaps : Yes

DISTRIBUTOR

I’m looking forward to warmer weather or alternately a trip south with my Cessna 150 for some fun in the sun. I’m going to add the float set for some fun at the lake. That said, I’ve immensely enjoyed flying this airplane from my club’s paved airstrip. I can say without hesitation

SPECIFICATIONS

CARBON-Z CESSNA 150 2.1M BNF BASIC

Horizon Hobby 4105 Fieldstone Road Champaign, IL 61822 Phone: 217-352-1913 Horizonhobby.com

Experience : Intermediate Environment : Outdoor Assembly : ≤1 hour Center of : 95–105 mm back of Gravity leading edge at wing root Price : $399.99 (#EFL1450) now with Free floats.

ASSEMBLY

Set aside a whopping 60 minutes for the assembly of the E-flite Cessna 150. You’ll need a couple hex drivers too.

Assembly amounts to mounting the motor, attaching the landing gear, mating the horizontal stabilizer to the fuselage, attaching the rudder, fixing the control linkages for the rudder and elevator, mounting the wings to the fuselage, and adding

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RC FLYER NEWS • February 2018

the trim pieces. You may also want to add some of the decals that are included in the kit.

Note that the manual is quite good, with supporting photos where applicable. However, you likely be able to assemble this model without it. The manual does provide a logical stepby-step procedure though, which I found helpful in avoiding duplicating steps.

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With full-flaps deployed you’ll discover the model slows down such that it lands like a trainer or even better.

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Take your pick with the DC-24 transmitter, either tray or handheld type. All have state-of-the-art components and are built to the most exacting radio RF standards. The programmablity of the radio is amazing.

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RC FLYER NEWS • February 2018

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DUPLEX DC-24 RF SECURITY — DUAL FREQUENCY, TRIPLE REDUNDANT, FREQUENCY HOPPING

BY WIL BYERS

I

t was November 30, 2012 when the Federal Communication Commission (FCC) certified the Jeti Duplex DC-16 radio system.

The DC-16 immediately became a benchmark in the RC industry.

I’ve been flying some of my models with control by a DC-16 transmitter and Jeti receivers since July of 2013. It has been a high quality, reliable, flexible, extremely program friendly system. The DC-16 has

afforded me the ability to get the utmost control and thereby enjoyment out of my RC aircraft, with superb telemetry aiding me along the way. Not surprisingly, I’ve grown to appreciate the engineering and software built into this radio system much! Understand that I’ve been a tray radio pilot since about 1990, so the DC-16 fit that need as well. The DS-16, however, is designed for handhold transmitter pilots.

When the Jeti DC-24 was

introduce by Esprit Model in January of 2016 I was interested immediately. I like what I was reading and seeing about the new features and functions incorporated into Jeti’s new, state-of-the-art transmitter. I was not, however, quite ready to transition to the new system. Rather, I wanted to watch its evolution to understand why Jeti was upgrading their new transmitter line. Subsequently, less than a year later, Jeti was introducing

Jeti’s DC-24 is now available in six colors: aluminum, orange, burgandy, blue, green, and black, with carbon faceplates. rcflyernews.tumblr.com

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JETI USA DUPLEX DC-16

The DC-24 now provides a color LCD screen that is easy to read, even in bright light. You can pick your color preferences too.

their R3 REX 900-MHz receivers.

That was the icebreaker for me. The R3 receiver cemented for me a clear understanding of the power of RF redundancy and how it can save one’s model either big or small. The security of redundancy especially rung true in that I was about to embark on a large-scale sailplane project. It was absolutely not an option of loss due to signal interruption or radio signal reception problems. Jeti’s revolutionary, digital, 24-channel (24-channels with 8 remote commands), 2.4-GHz and 900-MHz, dual frequency, triple redundant (two 2.4-GHz and one 900-MHz RF modules) true frequency hopping RF system gave me the confidence I was looking for in a new transmitter.

WHAT YOU GET

• Jeti Duplex DC-24 transmitter • Jeti aluminum transmitter carrying case • 110- to 240-volt wall charger • 3.7-volt 5200-mAh LiP Tx battery • Mini USB to USB PC cable • Workbench protection mat • Cleaning Cloth • Instruction manual

NEEDED TO COMPLETE • Receiver • Receiver Battery 106

RC FLYER NEWS • February 2018

All the switchs and levers remain in the same places as the previous versions, so it has a familiar feel for those that had a DC-16.

• Airplane, Helicopter, Glider, Drone

OVERVIEW

Let me detail a bit more about what comes inside the Jeti DC-24 shipping box that you’ll get from Esprit Model, Jeti USA. As you may already know, the Jeti radio systems are designed and manufactured by Jeti Model in the Czech republic.

They have garnered a reputation for high quality products from speed controllers to radio transmitters and receivers. As such, the DC-24 radio system is arguably one of the most advanced transmitters being sold to the RC enthusiasts today.

What separates the DC-24 for the rest is much. I’ll start with its solid computer numeric controlled (CNC) machined aluminum case. It is beautiful piece of tooling by itself.

Add to that, the DC-24 has five antennas which are seamlessly built into the case’s handle. Then open the back of the case and you are going to be impressed by the quality of the components, the RF deck, the way the gimbals are made, how the switches mate to the PC board, the LiPo battery pack, and generally the overall quality and layout of the components. It is quality from front to back!

Next, you’ll see the transmitter has a mini USB port, built-in speaker, and headset jack built in too. It ultra high quality metal control stick gimbals incorporate Hall sensors to provide 4096 step resolution. Further, the control sticks have integrated dual haptic feedback vibration (Stick Shaker), with nine ball bearings for ultra precise control movement. There is also a large, 3.5-in. (320 x 240 pixel) color, backlight display. The DC-24’s 8-gigabyte SD card provides plenty of storage memory for models and their images, plus music, and sounds. There are 30 free mixes included, as well as 10 flight modes and 10 sequencers. Also, the DC-24 offers triple-rate controls. There are 40 alarms and you can display for 40 values. The radio can display as many as 16 telemetry functions and you can have 24 logical switches. To put the finishing touches on the 24, Jeti included an audio player, MP3 support, an FM tuner, and voice commands, which you can record and store to activate different functions.

Finally, if you need timers it has 10 built into the code.

It isn’t uncommon in today RC model aviation world, that telemetry sensors help you optimize your aircraft and provide feedback to the pilot about in-flight conditions. The twitter.com/rcflyernews

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The control sticks use Hall sensors rather than potentiometers, and they can provide haptic feedback.

The trim buttons, switches and headphone jack are conveniently located for easy in-flight access—no fumbling to find.

My tray type radio has the trim levers placed in very comfortable positions on the left and right sides—easy to operate!

Notice how the switches and trim levers are positioned such that you’re not hunting for their control while watching your model.

The DC-24 is dual-band 2.4-GHz and 900MHz transmitter, with five antennas built into the radio’s top.

A 320x240 backlight LCD display makes programming navigation easy, even in brightlight conditions.

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JETI USA DUPLEX DC-16

The components used in the DC-24 are state-of-the-art and truly ultra high quality throughout this radio.

DC-24 provides up to 40 different parameters, which can be displayed on the transmitter’s 3.5-in. LCD display or on their JetiBox Profi, which is sold separately. Moreover, you can see the data in parallel mode, which will provide you and your copilot valuable aircraft in-flight information.

If you’re going to use telemetry, one of the features and functions offered in this new radio is the sound and alarms, which you have the option to personalize by recording them. For example, you may not want to exceed and altitude, speed or distance. You can program the radio to provide them, and annunciations when your aircraft has reached its limits. Using the MVario system, you can now use your Jeti DC-24 to work as an ALES or F5J limiter. It will work by either limiting the altitude or the motor run time. Moreover, it is all programmable through the radio’s intuitive, easy-tounderstand user interface.

Additionally, one of the unique features of the Jeti radio system is that switch and gimbal controls are freely assignable. As such, you can customize your transmitter for the switch and gimbal positions that you prefer. The transmitter can be 108

RC FLYER NEWS • February 2018

Take a look at the RF deck. As you can see there are five antennas exiting the board to the radio’s top.

configured for switches or sticks (modes one thru four). The DC-24’s computer will automatically recognize any changes you make.

Now let’s get down to it. Safety in this hobby for both people and aircraft is all important. The DC-24’s Jeti’s 2.4-GHz and 900-MHz, dual frequency, triple redundant frequency hopping RF system provides the ultimate in signal security. What does this mean? It means the longer wavelength of the 900-MHz signal is backing up the signal of the 2.4GHz dual redundant receiver system.

Consequently, if for some reason the 2.4-GHz system is interrupted, the 900-MHz system will automatically take over control of your model. The transmitter will provide an audible alarm to notify you that signal to the 2.4-GHz system has been interrupted. You will then have time to save your model by getting it back to the runway without incident.

This is an excellent solution to a long troublesome situation. The Jeti engineers were definitely thinking outside the proverbial box.

Then too you can certainly set an alarm to monitor the receivers’ battery capacity. Once the battery’s

(batteries’) voltage reaches a preset level the radio will annunciate an alarm. Again, you’ll have time to get your model back on the ground.

Just a quick story about these functions. I was flying my 6-meter wingspan ASG-29 sailplane at an event. It was quite high and going downwind. The signal alarm annunciated. I looked down quickly at the LCD screen. I saw that one of the receiver’s signal reception was low as the sailplane circled away from me. Immediately I piloted the glider back towards myself. After landing it, the receivers were checked. They passed the check, as did the receiver batteries. However, there was carbon fiber in the sailplane’s fuselage that may have been blocking the RF signal to the receiver. As a result, I repositioned the receiver. Subsequent flights were without incident. Suffice it to say, this feature saved me the cost of a rather expensive model—it paid for the transmitter in one flight too, I might add.

SYNOPSIS

While there are less expensive radios available, the Jeti DC-24 is a high quality system that warrants its twitter.com/rcflyernews

A 5200-mAh LiIon battery powers the DC-24, so transmitter on-times are quite long. The radio comes with a wall charger.

Look closely and you’ll see that the sticks are built to provide dual haptic (stick shaker) feedback for its telemetry systems.

These are the accessory items that you get with the DC-24 package. The wall charger is compatible with 110–240 VAC—get a car charger too.

Changing control switches is easy because you can simply plug them into the respective position you like on the radio.

I added a three-position switch to my throttle stick, which I use for quick and easy mode changes. rcflyernews.tumblr.com

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JETI USA DUPLEX DC-16

Your DC-24 arrives packed in a durable aluminum case. There is room for charger and extra receivers inside too.

I was able to use the tray from my DC16 for the DC-24. Using a tray makes for comfortable, rested hand positions.

This is the Jeti tray. It fits the DC-24 tray radio perfectly and I believe it makes for smoother and more precise piloting. Try one.

You’ll discover the benefits!

SPECIFICATIONS

• Dual-Band 2.4-GHz & 900-MHz triple redundant RF decks • Five (5) integrated antennas • Dual haptic feedback (Stick Shaker) — integrated vibration for the gimbals • New, high contrast, color 320 x 240 backlight LCD display • Integrated microphone — create custom voice announcements • Voice commands — activate functions or telemetry announcements • Integrated speaker and 3.5-mm headset jack. Play back music and create custom voice alarms • Built-in FM tuner for functional FM radio • Future proof hardware — optional WiFi or Bluetooth interface modules • State-of-the-art, upgradable firmware • Solid aluminum, CNC-cut transmitter • Case handle integrated antennas and oversized LCD display • Mini USB port — firmware upgrades and download of telemetry data

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RC FLYER NEWS • February 2018

• Built-in logic switches — program switch-activated complex strings of control events • Programmable 9-point curve mixes on 24 channels • Programmable triple-rate controls • Pre-programmed configurations for most wing, tail, and swash-plate types • On-board 8-gigabyte SD card memory • Integrated logical switch functions — program/mix functions unlimited • Integrated digital telemetry — view, process, and store telemetry data — wirelessly program any Duplex EX sensor • Create, manage, and program alarms; i.e., monitor temperature, speed, battery voltage and capacity, etc….

• Switches and channels are moveable and assignable — program any stick, dial, switch, or slider for any output • Unlimited programmable timers; i.e., flight time, motor run, countdown/up, stopwatch, etc.

Price:

$1,795.00 (#JETIDC24)

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SPECIFICATIONS

current price. Whether you choose the DC-24 or DS-24 you’re going to be buying one of the best radios money can buy. From the moment you open its aluminum carry case, till you turn on the transmitter, and the backlit, color LCD display lights up, you’ll understand you’ve bought into superb engineering, components, and software coding that you’ll likely not find in any other system. Plus you’re going to get one of the most flexible systems in terms of programming, switch selections, and function assignments money can buy.

To end this short review of an indepth product, I want to add that Jeti has many exceptionally well-produced videos about programming, settings, alarms, telemetry, and configurations on youtube.com. I’ve found them to be exceedingly helpful. I recommend you point your browser at YouTube. com and watch a few to understand just how much potential this radio has in terms of programming, telemetry, and aircraft control. Also, Jeti’s support line is well done too. The Jeti team is extremely knowledgeable about their product line. If they don’t have an immediate answer you can rest assured they’ll get one and then contact you with what they learned.

Parameter

DC-24 Tray

DS-24 handheld

Channels

24

24

Extra switches Possible

Yes

Yes

Accelerometer

No

Yes

Secondary RF module in Yes function: teacher, double path

Yes

900-MHz module

902 – 928 MHz US 902 – 928 MHz US

Flight modes

10

10

Free mixes

30

30

Graphs

Yes

Yes

Audio player

Yes

Yes

MP3 support

Yes

Yes

FM Tuner

Yes

Yes

Microphone

Yes

Yes

Vibration alarms

Yes

Yes

Color profiles, model images

Yes

Yes

Logic switches

24

24

Number of remote commands 24

24

Telemetry controls

16

16

Sequencer

10

10

Timer

10

10

Values on display

40

40

Event sounds

40

40

Alarms

40

40

Telemetry sensors

64

64

Voice output

Yes

Yes

Gyro settings

3

3

Servo balancer

Yes

Yes

Function curves

Yes

Yes

Throttle limiter

Yes

Yes

Vario

Yes

Yes

Flight modes trim

Yes

Yes

Number of control directions

18 (up to 20)

24 (up to 26)

Stick type

Aluminium MULTIMODE

Aluminium MULTIMODE

Resolution of sticks

4096

4096

Sticks Hall sensors

Yes

Yes

• How the Case is Made • https://youtu.be/sK0sdkU5Q8U

Internal memory, SD cart

8GB

8 GB

RF modules

3

3

• Stick Switch Install • https://youtu.be/tBS16GRIU7o

Number of antennas

5

5

LCD backlit

3,5-in. 320x240 px color high contrast

3,5-in. 320x240 px color high contrast

Weight [g]

1,5

1,25

Dimensions [mm]

230x270x40

194x233x40

CHECK THEM OUT • The Day the Competition Died • https://youtu.be/tTvPpvVR0E0

DISTRIBUTOR

• Dual Band Redundancy • https://youtu.be/DsE7vqcrs3c

Esprit Model USA P.O. Box 360815 Melbourne, FL 32936 Phone: 321-729-4287 espritmodel.com

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Transmitter Battery Pack [mAh] Power Ion 1S2P 5200

Power Ion 1S2P 5200

Battery Charger

Yes

Yes

Aluminium case

Yes

Yes Subscribe @ RCSportFlyer.com

111

AD INDEX APC Propellers

apcprops.com

Bob Smith Industries

bsi-inc.com

113 2 51, 117

Blade

bladehelis.com

Desert Aircraft

desertaircraft.com

Eagle Tree Systems

eagletreesystems.com

42 8 116

Hangar 9

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Icare RC

icare-rc.com

KingMax Servos

rcsportflyer.com

Maxx Products

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PowerBox

powerboxsystems.com

8 118 9, 61

RCRCM Gliders

rcsportflyer.com

4, 5

RC Sport Flyer

rcsportflyer.com

43, 60

Spektrum

spektrumrc.com

3, 71

Toledo Weak Signals

toledoshow.com

115

Top Gun ‘18

franktiano.com

49

TruTurn

tru-turn.com

11

Weaver’s Airfield

weaversrcairfield.com

112

Yuneec

rcsportflyer.com

114

ZAP

zapglue.com

70

113

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2018 FUN FLY JUNE - 15, 16, & 17 OTHELLO, WA

Airplanes, Helicopters, Gliders, Drones Welcome!

WEAVERSRCAIRFIELD.COM

IT’S JUST FOR THE FUN OF IT! 112

RC FLYER NEWS • February 2018

twitter.com/rcflyernews

THE Mystery AIRPLANE

WIN

A FREE SPORT FLYER HAT

Give us the name of this cockpit to

win!

Last month’s

ANSWER

cockpit was A380 jetliner. We hope you enter to be a winner in this month’s Mystery Airplane/Cockpit contest.

SUBMISSION INFORMATION Please e-mail your response to

news@rc-sf.com or mail a letter to Kiona Publishing ATTN: RC-SF 23-01 Contest

P.O. Box 1950 Moses Lake, WA 98837

Submissions must be received by

3/20/2018

Providing superior quality, unmatched variety, and excellent service since 1989.

Quality Propellers that are Competition Proven

www.APCPROP.com (530) 661-0399

Proudly made in the USA!

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Visit the APC Prop Website for more details about our efficient, high performance, balanced multi-copter propellers.

All propellers are in stock APC Propellers are also available from your favorite supplier

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113

Pro Features in a Consumer Friendly Package

Get advanced aerial photography and videography is this new compact-size hexacopter from Yuneec.

Typhoon H delivers capabilities previously only found in high-end professional offerings — now consumer priced.

Typhoon H offers flight durations of up to 25 minutes while filming with the CGO3+ 4K UHD camera. The Android powered ST16 Ground Station features a 7-inch touchscreen display that delivers live footage of the flight in HD 720p resolution and enables a wide variety of autonomous flight modes.

Typhoon H with Intel® RealSense™ Technology is capable of detecting obstacles and intelligently navigating around them.

RealSense integrates with Follow Me mode to avoid objects while filming in any direction. The Intel® RealSense™ R200 camera with Intel® Atom™ powered module builds a 3D model of the world!

•

Typhoon H uses GPS — not just vision — to track targets.

Typhoon H can navigate around obstacles, regardless of size, and stay on subject even if it becomes obscured.

•

Features: • Collision Prevention and advanced obstacle navigation • Intelligent front sonar sensors lets Typhoon H stop short of obstacles automatically.

• Orbit Me mode lets Typhoon H fly a circular path around you, while keeping the camera trained on you.

• Point Of Interest mode gives you the option to select a subject and Typhoon H will orbit that subject autonomously, all the

ORDER YOUR TYPHOON H AND SKYVIEW GOGGLES AT:

•

•

time keeping the camera trained on the point of interest.

• In Journey Mode Typhoon H will go up and out, as far as 150 feet, and capture the perfect aerial selfie.

• Curve Cable Cam lets you program an invisible route for Typhoon H to fly, while it independently controls the camera position.

• Return Home with just the flick of a switch on the ST16 controller, and Typhoon H will fly home and land automatically.

• Smart Safety ensures the Typhoon H will not enter FAA “No Fly” zones. The No Fly Zone feature also prevents flight above 400 feet from the ground. The built-in GPS establishes a 26-ft (8-m) diameter Smart Circle around the pilot when taking off and landing. It also creates a Geo Fence to keep the hexacopter from traveling farther than 300 ft (91 m) from the pilot’s position.

The ST16 Ground Station is an integrated transmitter, receiver and Android platform that gives you control over Typhoon H. You can program autonomous flight and capture stunning photos and videos. The large, 7-inch screen displays real-time footage of flights.

Using Team Mode, you can bind one Ground Station to Typhoon H and another Ground Station to the CGO3+ camera simultaneously.

Real-time telemetry data is on screen during flights, including: flight mode, altitude, speed over ground, distance from home, camera status, GPS position coordinates, and aircraft battery status. Controls include: adjustable video resolution and white balance, while exposures can be controlled automatically or manually, including ISO and Shutter Speed. The camera allows for pictures in RAW (DNG) and JPEG format.

Typhoon H is also compatible with the new, ergonomic and durable SkyView FPV headset.

RCSportFlyer.com

TO

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SIG

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DO

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APRIL

AL U N N A th

W O N D E O L I O T I T S 64

O P X E RC

8 1 0 2 E N 8 O , R 7 D , , R 6 E T P O C I R, HEL

A C , E N A PL ONLY

S L A N G I S K A 18 E

O

OLED T E H T AT

ONE R D !

W SHO

Join us for the 64th Annual Toledo Weak Signals RC Expo: R/C Model Expo is North America’s largest and longest running R/C model expo. This three day event showcases all types of R/C models including planes, cars, and boats. Along with the all the exhibitors there is a R/C model competition, speakers, swap shop, and an auction. Learn something new about the hobby by attending our symposiums conducted by top R/C experts. Enjoy FREE ADMISSION to Saturday evening’s auction. This event is fun for the whole family.

20

T R LATESR IN U O Y G BRIN T TO ENTE PROJECCOMPETITION,0 MODEL HAN $10,000.0 MORE T PRIZES! IN CASH

Y!

RY DA E V E G CIN

RA

ADMISSION $10

12 and under FREE also see website for information on GROUP DISCOUNTS The Toledo Seagate Center 401 Jefferson Ave Toledo, OH 43606

WWW.TOLEDOSHOW.COM

NEW

KEY FEATURES

Inductrix速 FPV

Inductrix速 FPV+

Inductrix速 FPV Pro BNF速

Take Your Model’s Performance to

the MAX with KingMax Servos.

Deadband: 2 μs default

BLS1204L LOW-PROFILE SERVO

Dimensions: 41.1 x 20 x 26.5 mm /1.6 x 0.78x1.03 in.

Working Frequency: 1520 μs / 330 Hz

Stall Torque: 8.8 kg-cm (122.23 oz-in.) (6.0V) 12 kg-cm (166.68 oz-in.) (7.4V) 14 kg-cm (194.46 oz-in.) (8.4V) Weight: 50g (1.76 oz)

Connector Type: JR

Deadband: 2 μs default

BLS2507S L ARGE-AIRPLANE SERVO

Stall Torque: 22.2 kg-cm (308.36 oz-in.) (6.0V) 25 kg-cm (347.25 oz-in.) (7.4V) 28 kg-cm (388.92 oz-in.) (8.4V) Connector Type: JR

Stall Torque: 14.2 kg-cm (197.24 oz-in.) (6.0V) 16 kg-cm (222.24 oz-in.) (7.4V) 18.5 kg-cm (256.97 oz-in.)

Connector Type: JR

Stall Torque: 27.8 kg-cm (386.14 oz/in.) (6.0V) 30 kg-cm (416.7 oz/in.) (7.4V) 35 kg-cm (486.15 oz/in.) (8.4V) Connector Type: JR

Wire Length: 333 mm (13 in.)

Dimensions: 41.1 x 20 x 26.5 mm /1.6 x 0.78x1.03 in.

Working Frequency: 1520 μs / 330 Hz

Operating Voltage: DC 4.8 – 8.4 V

Operating Speed: 0.11 sec/60º (6.0V) 0.13 sec/60º (7.4V) Stall Torque: 7.5 kg-cm (104.18 oz-in.) (6.0V) 9.2 kg-cm (127.79 oz-in.) (7.4V) Weight: 26.20 g (0.92 oz)

SOLD EXCLUSIVELY BY

Operating Voltage: DC 6.0 – 8.4V

Operating Speed: 0.18 sec/60º (6.0V) 0.15 sec/60º (7.4V) 0.13 sec/60º(8.4V)

Deadband: 2 μs

THIN-WING SERVO

Wire Length: 333 mm (13 in.)

Dimensions: 40 x 20 x 40.9 mm /1.56 x 0.78 x 1.6 in.

Working Frequency: 1520 μs / 330 Hz

Weight: 80g (2.82 oz)

CLS0911W

Operating Voltage: DC 6.0 – 8.4V

Operating Speed: 0.07 sec/60º (6.0V) 0.06 sec/60º (7.4V) 0.05 sec/60º(8.4V)

Deadband: 2 μs default

LARGE-AIRPLANE SERVO

Wire Length: 333 mm (13 in.)

Dimensions: 40 x 20 x 40.9 mm / 1.56 x 0.78 x 1.6 in.

Working Frequency: 1520 μs / 330 Hz

Weight: 71 g (2.5 oz)

CLS3015S

Operating Voltage: DC 6.0 – 8.4V

Operating Speed: 0.08 sec/60º (6.0V) 0.07 sec/60º (7.4V) 0.06 sec/60º(8.4V)

Deadband: 2 μs default

AIRPLANE SERVO

Wire Length: 190 mm (7.41 in.)

Dimensions: 40 x 20 x 40.9 mm / 1.56 x 0.78 x 1.6 in.

Working Frequency: 1520 μs / 330 Hz

Weight: 69 g (2.43 oz)

CLS1606S

Operating Voltage: DC 6.0 – 8.4V

Operating Speed: 0.05 sec/60º (6.0V) 0.04 sec/60º (7.4V) 0.037 sec/60º(8.4V)

Connector Type: JR

RCSportFlyer.com

Wire Length: 185 mm (7.28 in.)