回視聴
4:16
Easy calculation of Magnetic & Gyro compas ERROR, deviation.
3:21
Navigation - Compass Error
0:27
How to calculate Compass Error for 5 seconds
13:01
HOW TO CALCULATE COMPASS ERROR ONBOARD #navigation #officer #merchantnavy #lifeatsea
14:10
V030 How to compute Compass erro ABC table by Scientific calculator : LIFE AT SEA
2:51
Sunrise and Sunset Calculator / Solar compass
16:36
How to compute compass error by sun : LIFE AT SEA
0:16
multi purpose pencil box with lock | space compass
