V V 1, 1 V
STB'D PORT FORE AFT
1 1 2 1 1
8, 8 AT FROM COMPASS CARD 9, 10 AT FROM COMPASS CARD V CLOCKWISE COUNTER V CLOCKWISE AT FROM COMPASS CARD 2 AT FROM COMPASS CARD
TONNAGE: 85722 GT, 165819 DWT, OTHER : CARD DIAMETER : SERIAL NO : 185 mm A 179132
V
11-REFLECTOR
STEERING :
CASSENS & PLATH
TABLE
DEVIATION (-)W MAGNETIC HEADING DG. ON DG. OFF N 000 0.8 015 -0.8 030 -2.1 NE 045 -2.9 060 -2.9 075 -2.1 E 090 -0.7 105 0.9 120 2.2 SE 135 3.0 150 2.9 165 2.1 S 180 0.7 195 -0.9 210 -2.2 SW 225 -3.0 240 -3.0 255 -2.2 W 270 -0.8 285 0.8 300 2.2 NW 315 2.9 330 2.9 345 2.1 N 360 0.8
SHIP'S GYRO HEADING
000.60 045.60 090.60 135.60 180.60 225.60 270.60 315.60
1.30 1.30 1.30 1.30 1.30 1.30 1.30 1.30
359.30 044.30 089.30 134.30 179.30 224.30 269.30 31DEVIATION CURVE
360 345
330 315 300 285 270 255 240 225 210 195 180 165 150 135 120 105
( + ) E 1. DEVIATION DETERMINED BY: SUN'S AZIMUTH: GYRO: TRANSIT BEARING: OTHER: 2. DEVIATION = A + Bsinφ + Ccosφ + Dsin2φ + Ecos2φ WHILE φ IS SHIP'S MAGNETIC HEADING 3. THE ADJUSTED PLACE LAT : LONG : 22-58.10 N 060-14.50 E 0.60 1.30 "+" E "-" W "+" E "-" W V
D -2.95 RED END TO FORE AFT STB'D PORT AT
PORT AT STBD AT
E 0.75
"+" IS "E" "-" IS "W" LOCATION
COEFFICIENT CORRECTORS B C FORE & AFT B MAGNETS ATHWARTSHIP C MAGNETS V D SPHERES CYL'S PLATES
MAGNETIC COMPASS DEVIATION TABLE
DATE : SHIP'S NAME YARD'S HNO COMPASS TYPE MAKER CAPE MERCURY
FLAG :
26-Jan-2005 387780
SINGAPORE
OFFICIAL NO :
CHINA SHIPBUILDING CORPORATION STANDARD :
測定磁羅經自差前, 先測得要用以比對的電羅經目前存有的誤差, 及求得本輪現在所處位置的海區之磁 差, 并將此二值填入到自差表中, 然后按上表計算求得八個電羅經航向將船舶駕駛到每一電羅經航向上, 并在每一電羅經航向上穩定1-2分鍾, 再將比對得取的八個磁羅經航向記錄下來, 輸入到上表中。
DEVIATION = A + Bsinφ + Ccosφ + Dsin2φ + Ecos2φ , WHILE φ IS SHIP'S MAGNETIC HEADING, A =(Dn + Dne + De + Dse + Ds + Dsw + Dw + Dnw)/8, B = [De - Dw + (Dne - Dsw + Dse - Dnw)*Sin45]/4, C = [Dn - Ds + (Dne - Dsw - Dse + Dnw)*Sin45]/4, D = (Dne + Dsw - Dse - Dnw)/4, E = (Dn + Ds - De - Dw)/4.
APPROVED (MASTER) :
需要測取的 八個磁航向
觀測時海 區之磁差
相對應的磁航向 換算成將要比對 的八個真航向
電羅經 之誤差 GYRO ERROR "+" E "-" W
在相對應的 相對應的每一磁航 在相對應之電羅 每一磁航向 向換算成將要比對 經航向上, 所讀 上, 所求得之 的八個電羅經航向 取的磁羅經航向 磁羅經自差 SHIP'S MAGNETIC COMPASS HEADING 359.30 047.80 090.80 132.00 179.30 228.00 270.80 312.00 TOTAL DEVIATION "+" E "-" W 0.70 -2.80 -0.80 3.00 0.70 -3.00 -0.80 3.00 Dn Dne De Dse Ds Dsw Dw Dnw
090 075 060 045 030 015 000
VARIATION : GYRO ERROR :
2.0 4.0
-2.0
0.0
COEFFICIENT FACTOR
A 0.00
B 0.04 SIZE 10 mm X 200 mm 10 mm X 200 mm 180 mm
C 0.04 Q'TY 2 2 2
SHIP'S MAGNETIC COURSE N NE E SE S SW W NW 000 045 090 135 180 225 270 315
VARITION "+" E "-" W 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60
SHIP'S TRUE HEADING
SLEWED
INDUCED B FLINDER'S BAR HEELING HEELING MAGNETS
75 mm X 140 mm 25 mm X 200 mm
1 1 UP DOWN V
ATHWART SHIP FORE V AFT UNDER CARD DISTANCE
SIGNED (ADJUSTER) :