GE& Dev. (Calculator)
ALT.
D E C.
TI ME
SHIP’SNAME
FROM COMPASSERRORBY AZIMUTH (CAL.)
C / Body / Spd. DR.Lat. DR.Long. DATE (Z) ZT (ST) ZD GMT DATE(G) CT CE GMT d. ( + ) or ( - ) TAB. Dec. h d. corr. Dec. (N. or W.) H.P. (D) = IC Dip Sum Corr h.s h.a / D/ Ο U/L (D) Add’l Sum Corr. Ho Lat. (N. or S.) Dec. (N. or S.) CosAz = Az Zn Zn Zn Var. GB MB GE CB Dev. GEis
( )
(+)
C – 15 .
TO
( )
(-)
Dev. For ship’s head
(+)
(-)
is
.
±s in D −s in L s in H o co s A z = co s L cos H o
± : L & D Samename (+) ; L & D Contrary name (-) Prefix “Az” with (N. or W.) as the name of DR.Lat. And suffix it with (e. or W.) as the name of t (LHA.) BOB C – 15
GE& Dev. (Calculator)
ALT.
D E C.
TI ME
SHIP’SNAME C / Body / Spd. DR.Lat. DR.Long. DATE (Z) ZT (ST) ZD GMT DATE(G) CT CE GMT d. ( + ) or ( - ) TAB. Dec. h d. corr. Dec. (N. or W.) H.P. (D) = IC Dip Sum Corr h.s h.a / D/ Ο U/L (D) Add’l Sum Corr. Ho Lat. (N. or S.) Dec. (N. or S.) CosAz = Az Zn Zn Zn Var. GB MB GE CB Dev. GEis
FROM COMPASSERRORBY AZIMUTH (CAL.) Plot
(
TO
.
fix)
DR.λ/15º = E(-) ; W(+) ZT ± ZD ( ) CT ± CE * ALM ALM GMT d. d corr. d (+) or (-) (+) ALM (-) Sectant ALM ( )
*
GMT (Dec. ALM
-30’0 ;
GMT (+)
hs ± corr. Dip Star and planet ha
ALM
+ Dec. –)
Dip
;
(-)
ALM
H.P. Star and Planet
h.a ± corr. Lat. DR.Lat.
L Az t NE (Az=Zn) , SE(180°- Az=Zn) , SW(180°+ Az=Zn) , NW (360°W(+)E(-) Zn ± Var.
Gyro Bearing Zn ±GB
MB - CB
Dev. For ship’s head
is
.
±s in D −s in L s in H o co s A z = co s L cos H o
± : L & D Samename (+) ; L & D Contrary name (-) Prefix “Az” with (N. or W.) as the name of DR.Lat. And suffix it with (e. or W.) as the name of t (LHA.) BOB