девіація компаса
magnetic liquid compass / wet compass
individual compass error
error of the rifle (error of the rifle)
compass bearing
compass case
compass direction
compass heading
compass march
compass north
compass rose (wind rose)
gyromagnetic compass
lensatic compass
adjusted compass
compass data
compass of the base point
compass variation
gyro flux(-)gate compass
gyro stabilized flux(-)gate compass
gyro-compass / gyro-unit
gyromagnetic compass system
gyro-unit / gyro-compass
radio compass
sighting compass
compass
jumper-stay compass
watch compass
hand bearing compass
magnetic compass
compass problem
night compass problem
azimuth compass
compass cross bearing