gyrocompass
/ˈdʒʌɪrə(ʊ)kʌmpəs
/noun
A non-magnetic compass in which the direction of true north is maintained by a continuously driven gyroscope whose axis is parallel to the earth’s axis of rotation.Unlike a conventional gyrocompass that typically must operate for an hour or more before it can provide useful information, the GPS compass is usually ready for use in less than five minutes....
- When it reached its target, a gyrocompass and timing device in the rear sent it into a steep, spinning, near-vertical dive which stalled the engine.
- A commercial GPS attitude-determination system and a gyrocompass served as reference systems during some tests; surprisingly, the gyrocompass performed quite well at such high latitudes, although settling took many hours.
- half-hourly
- half-hunter
- half-inch
- half-integer
- half-integral
- half-island
- half-jokingly
- half landing
- half-lap
- half-length
- half-life
- half-light
- halfling
- half-litre
- half-marathon
- half mast
- half measure
- half-moon
- half-move
- half-naked
- half note
- half one (or two etc.)
- half-open
- half-pants
- half past one (or two etc.)