MAGNETIC AND GYRO COMPASS AND APPLY ERROR (Navigation)

TASK NO-2.14

TASK-COMPARE MAGNETIC AND GYRO COMPASS AND APPLY
ERROR

AIMS-

1. TO UNDERSTAND MAGNETIC & GYRO COMPASS.

2. TO UNDERSTAND MAGNETIC COMPASS ERROR.

3. TO UNDERSTAND GYRO COMPASS ERROR

REQUIREMENTS FOR TASK-

GSK TEXT BOOK, NOTES, PLANE PAPER.

DESCRIPTION/PRECAUTION-:

 

DIFFERENCE BETWEEN GYRO AND MAGNETIC

GYRO MAGNETIC

ITS REFERENCE POINT IS TRUE NORTH. IT REQUIRES CONSTANT POWER SUPPLY CAN BE CONNECTED TO ANY AMOUNT OF EQUIPMENTS WHICH REQUIRE COMPASS FEEDING ERRORS HIGH, AND LOW EQUIPMENT ERRORS – WONDERING ERROR. PERMANENT ERROR, LATITUDE ERROR, SPEED ERROR.

ITS REFERENCE POINT IS MAGNETIC NORTH IT DOES NOT REQUIRE CONSTANT POWER SUPPLY. IT IS NOT POSSIBLE TO FEED MAGNETIC COMPASS TO ANY NUMBER OF EQUIPMENTS. EQUIPMENT ERRORS – DEVIATION AND VARIATION EQUIPMENT ERRORS – DEVIATION AND VARIATION.

GYRO COMPASS ERRROR

GYRO COURSE : 015°	GYRO ERROR : 2°(H)	TRUE COURSE : 013°
GYRO COURSE : 236°	GYRO ERROR : 1°(L)	TRUE COURSE : 237°
GYRO COURSE : 111°	GYRO ERROR : NIL	TRUE COURSE : 111°
GYRO COURSE : 002°	GYRO ERROR : 3°(H)	TRUE COURSE : 359°
GYRO COURSE : 358°	GYRO ERROR : 3°(L)	TRUE COURSE : 001°

 

NOTE:-

WHEN VAR. & DEV. OF SAME NAME = ADD

WHEN VAR. & DEV. OF DIFF. NAME =
SUBSTRACT (Small value from big value and name the big)

MAGNETIC COMPASS ERROR

 

COMPASS ERROR = VAR. ± DEV.

VARIATION	DEVIATION	COMPASS ERROR
5°E	5°E	10°E
5°W	5°W	10°W
10°E	5°W	5°E
15°W	20°E	5°E