radar altitude


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.