radar altitude


Also found in: Acronyms.

radar altitude

[′rā‚där ′al·tə‚tüd]
(navigation)
The altitude of an aircraft or spacecraft as determined by a radio altimeter; thus, the actual vertical distance from the terrain. Also known as radio altitude.

radar altitude

The altitude of an aircraft determined by a radar altimeter. This is the actual distance between the aircraft and the terrain feature below the aircraft. Radar altitude is very close to absolute altitude. See absolute altitude.
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