a gyroscope, electrically rotated, controlled and damped either by gravity or electrically so that the spin axis settles in the meridian, a compass having one or more gyroscopes as the directive element(s), and which is north seeking. Its operation depends upon four natural phenomena, including gyroscopic inertia, gyroscopic precession,, güroskoopseade laeva kursi ja peilingute määramiseks. G-i töö põhineb 3 vabadusastmega güroskoobi omaduste ja Maa ööpäevase pöörlemise kasutamisel.