radio altimeter altitude
1altimeter — /al tim i teuhr, al teuh mee teuhr/, n. 1. a sensitive aneroid barometer that is graduated and calibrated, used chiefly in aircraft for finding distance above sea level, terrain, or some other reference point by a comparison of air pressures. 2.… …
2Altitude — For other uses, see Altitude (disambiguation). Not to be confused with Attitude. Altitude or height is defined based on the context in which it is used (aviation, geometry, geographical survey, sport, and more). As a general definition, altitude… …
3altitude hold — An autopilot mode that permits a barometric/radio/radar altimeter altitude to be maintained …
4Altimeter — An altimeter is an instrument used to measure the altitude of an object above a fixed level. The measurement of altitude is called altimetry, which is related to the term bathymetry, the measurement of depth underwater. Aircraft Instrumentation… …
5altitude — i. The vertical distance of a level, a point, or an object considered as a point, measured from mean sea level (ICAO). In the case of aircraft in flight, it is normally expressed in flight levels or hundreds of feet. For example, an aircraft… …
6altimeter — An instrument to indicate the height of an aircraft above a predetermined datum, normally sea level. Specifically, an instrument similar to an aneroid barometer that utilizes the change of atmospheric pressure with altitude to indicate the… …
7altimeter — al•tim•e•ter [[t]ælˈtɪm ɪ tər, ˈæl təˌmi tər[/t]] n. aer. an aneroid or radio barometer used chiefly in aircraft to ascertain flight altitude • Etymology: 1820–30 …
8Radar altimeter — A radar altimeter, radio altimeter, low range radio altimeter (LRRA) or simply RA measures altitude above the terrain presently beneath an aircraft or spacecraft. This type of altimeter provides the distance between the plane and the ground… …
9absolute altimeter — An instrument intended to give acceptably accurate, direct indications of absolute altitude (i.e., the vertical distance of the aircraft from the surface of the earth). A radio or a radar altimeter indicates absolute altitude roughly because of… …
10radar altimeter — noun A high altitude radio altimeter • • • Main Entry: ↑radar …
