MARINE NEWSLETTER April 2022
CONTENTS Gurit finalist in JEC Innovation Awards . Spaceship ahead: a futuristic power catamaran . The next generation of foiling moths . Fuel efficiency and performance through strength and lightweighting . Passenger transfers go emission-free in Bora Bora . Gurit contacts
Ika Rere: a JEC Innovation Awards finalist Ika Rere is a groundbreaking fully electric, high-speed passenger ferry built by Wellington Electric Boat Building Company in New Zealand. Commercial viability was key to the design and build of this 20-knot vessel, and was achieved through the use of Gurit advanced composite materials and structural engineering consultancy.
Nominated in the JEC Innovation Awards The ferry is a finalist in the JEC Innovation Awards, in the category of Maritime Transportation and Shipbuilding, where it was recognised for its unique propositions, including zero operating emissions, reduced energy and maintenance costs, and improved passenger experience. Gurit is honored to have been nominated for its work on Ika Rere. The 2022 award ceremony will be held on April 26, 2022 in Paris, France. Since their creation more than twenty years ago, the JEC Innovation Awards celebrate successful projects and cooperation between players in the composites industry. JEC Group rewards the best cutting-edge and ingenious projects using composites to their full potential. www.electricboatbuilders.co.nz www.jeccomposites.com Ika Rere, a fully electric, high-speed ferry April 2022 Gurit Marine Newsletter 1 of 7
de Mey 60: high-end power catamaran coming to life Under construction at Nic de Mey Yachts are two spacious 60ft (18.3m) power catamarans, designed as passagemakers with the range, handling and comforts expected from a cruising boat. They boast large open plan living spaces, four generously sized cabins, the equivalent toy storage volume of an 86ft monohull, and a tender garage to fit a 4m tender. There are plans to expand the aptly named ‘Spaceship’ range to include 16m and 20m versions.
Valuable benefits with prepreg or infusion solutions de Mey is an experienced boat builder of both race boats and pleasure craft and is well versed in advanced composites and the benefits they offer.
DE MEY 60 Spaceship: The first two catamarans are due to be launched towards the end of 2023.
“We only work with prepreg or infusion and the main structures of the DE MEY 60s are an infused carbon sandwich laminate,” explains de Mey. “To us, the extra cost of the materials is worth it. You make a significant weight saving, plus there are labour savings as you generally need
Structural core as critical success factor
IN OUR OPINION, IF YOU HAVE A COMMON-SENSE APPROACH TO WEIGHT SAVING, THE CUSTOMER ENDS UP WITH A VERY HIGH-END PRODUCT AT A REASONABLE PRICE.
Nic de Mey Yachts are a long-time user of Gurit Corecell™,
Nic de Mey, owner Nic de Mey Yachts
to lay down less fibre. The lamination team appreciates the cleaner workspace and I that find this whole approach leads to high quality workmanship and lower staff turnover, which is hugely valuable.”
using it on the exterior of the 60s to minimise outgassing. It is also their preferred core in their many high-speed projects where slamming loads are extremely high, such as their 21ft race boats, which feature Corecell™ 130 on the planing surfaces. www.nicdemeyyachts.com
DE MEY 60 power catamarans under construction at Nic de Mey Yachts
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PRIME™ 37 Infusion for High Tech Solutions Fluid Composites are the manufacturer of the Maverick International Moth, a foiling dinghy, with historic roots dating back nearly 100 years. The Moth class is again at the forefront of the dinghy scene due to it’s grand reinvention, with full carbon hull and foils, resulting in high speeds. The Maverik Moth was a natural evolution from the previous generations of Moth’s built by Fluid. Using their background in Automotive and Formula 1 composite engineering, Fluid design and build the Maverik to incorporate as much of this technology as possible, with the emphasis on aerodynamic efficiency.
The Maverik International Moth Incorporates a full package of Gurit materials to ensure the best quality, including Corecell™ M foam, Spabond™ and PRIME™ 37. PRIME™ 37 was chosen to infuse the full carbon hull due to it’s excellent wetting technology. Andrew Whapshott, Technical Director commented, “The PRIME™ 37 Infusion system has proven to be extremely versatile. As a result, we have been able to tune cure times to our advantage and significantly improve production efficiency. We experienced no release issues and a beautiful finish with this product. In addition, we have received excellent technical support”. www.fluidcomposites.co.uk
The Foiling dinghy Maverik International Moth demonstrating excellent aerodynamic efficiency
Andrew Whapshott, Technical Director at Fluid Composites
Bio-Based as Standard Gurit’s epoxy resins and adhesives have been developed for high performance and better health and safety for workers, free from carcinogenic, mutagenic, and reprotoxic ingredients (CMRs) and Substances of Very High Concern (SVHCs). Gurit’s AMPRO™ multi-purpose and PRIME™ infusion systems are supplied with bio-based content as standard. Gurit cares about its employees and customers and is proud to offer these products globally.
BIO-BASED PRODUCTS AS STANDARD
PLANT / FOOD WASTE
CHEMICALS EXTRACTED
GURIT FORMULATIONS
BIO-BASED AS STANDARD
April 2022 Gurit Marine Newsletter 3 of 7
Achieving extended-range fuel efficiency and performance through strength and lightweighting In late 2020, China-based luxury motor yacht builder, Marlow Yachts, launched their biggest vessel to date, the Voyager 100. Designed for extended offshore expeditions, her performance, reliability and fuel efficiency were a focus for the design and build team - attributes which are common to all Marlow Yachts’ vessels. With a range of 3650 miles at 9 knots, her first extended voyage was from Tampa Bay in the Gulf of Mexico to Nova Scotia. In early 2023 the builder will launch a 130 ft Voyager with a Transatlantic range at 14 knots and Transpacific range at 11 knots. Michael Huang, COO of Marlow Yachts Asia, an integral part of Marlow Yachts’ phenomenal success since its beginning in 1999 explains: “As a builder of extended-range yachts, we feel it’s our responsibility to have fuel efficiency at the centre of everything we do. Key to this is weight reduction, which we consider across our whole design and construction process, from the semi displacement hull shape, the monocoque structure, the advanced composite materials, and superstructure design.”
Infusion technique for strength, safety and weight control The Voyager 100’s primary structures are made of carbon and aramid fibre/Corecell™ sandwich laminates, which are infused using Marlow’s proprietary Full Stack Infusion® technique. This allows the entire structure to be infused, from the outer skin, through the core layer to the inner skin in one shot infusion, with the aim of improving weight control through the construction process, improving the strength of the component and creating a safer working environment for their production team.
Lasting confidence in Gurit Corecell™ Marlow Yachts set up at its own construction centre, Norsemen Shipbuilding, in 2003, and has used Corecell™ from the start. It was an early decision made by the team due to the material’s ultimate strength profile, impact absorption properties and strength-to-weight ratio. Corecell and numerous other core materials were tested in finite analysis environments to fairly compare the available products and reach an informed decision. In 2018 Marlow Yachts again tested the market leading core materials, adhesives, and structural reinforcements at its Florida facility, finding similar results to the original testing carried out some twenty years before. Corecell™ was again the clear winner in the final analysis. “We have been using Corecell™ for around 23 years now, having zero failures to date, and we continue to have every confidence in the product. It is our go-to core material for all Marlow motoryachts whether usage is confined to coastal waters or Arctic/Antarctic expeditions” says Huang. “From the outset, we’ve been focused on building only the highest quality yachts that will perform exceptionally and reliably over long ranges. Corecell™ is part of that equation.”
Collaboration for fuel efficiency Gurit also provides structural engineering support to Marlow Yachts, most recently on the ME58 classic flybridge and command bridge models, which will launch in July 2022. More collaborations between the two companies are planned for this year, continuing to focus on advanced technologies to achieve previously unattainable superstructure, hull, and bulkhead weights. This includes the efficient use of carbon fibre throughout the vessels, along with optimised structural layouts, to meet weight reduction targets. “Gurit always has been and continues to be an important partner in delivering fuel efficient and performing motoryachts to our customers.”
April 2022 Gurit Marine Newsletter 4 of 7
Emission-free local transfers in Bora Bora Whilst talk is gathering apace around the future of maritime electrification, for one Gurit customer who has had solar electric boats in operation since 2016, it’s business as usual. Soel Yachts started out with a mission to design and build fully sustainable and highly efficient boats, with the SoelCat 12, a fully solar electric excursion boat for 12 passengers, the first design off the drawing board. Fast forward 6 years: two Soel Shuttle 14 vessels, each with a maximum capacity of 24 passengers were delivered to a hotel resort in Bora Bora earlier this year, for guests to enjoy emission-free airport and town transfers.
maximise the deck space. In her delivered configuration, she offers passengers a very comfortable and noise-free, zero emission ride, with a cruising speed of 7 knots and a range of 45 nm.” Soel Yachts collaborated with Gurit on the composite structural engineering of both the 12 and the 14, and this collaboration continues with the design underway for the newest addition to the Soel Yachts’ portfolio, the Soel Senses 62, a private live-aboard electric catamaran.
Lightweight, durability and maximized deck space From the first line drawing, every aspect of a Soel Yachts’ boat is purposefully designed and engineered for efficient clean solar electric propulsion. Low weight plays a key role, especially in decisions around the composite hull design and build process. “We work very closely with Gurit to define our structural weight targets at the outset, and to help us monitor and manage the weight during the build process,” says Linda Brembs of Soel Yachts. “For the Soel Shuttle 14 we decided on a production-friendly vacuum infused E-glass sandwich laminate, which balances durability and low weight; and Gurit’s structural solution has enabled us to
Soel Yachts Managing Partners (L-R): Linda Brembs, David Czap & Joep Koster
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SUCCESSFUL TOGETHER Gurit is available to support your marine projects, including structural cores, prepregs, formulated products, and engineering services.
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