The altitude transmitted is pressure altitude, and corrected for altimeter setting at the ATC facility.
2.
The aircraft pressure altitude and pitch angle were decreased while 160 knots computed airspeed remained maintained.
3.
True airspeed is equivalent airspeed that is corrected for pressure altitude and temperature ( which define density ).
4.
The scuba rule has to do with the bends as all flight has a pressure altitude above sea level.
5.
The tunnel was in the ground water at a pressure altitude of approximately 16 m to the bottom of the tunnel.
6.
It provides the aircraft's pressure altitude to the transponder, so that it may relay the information to the ATC facility.
7.
Mode C uses a spacing of 21 ?s, and requests the aircraft's pressure altitude, provided by the altitude encoder.
8.
Because primary radar generally gives bearing and range position information, but lacks altitude information, mode C and mode S transponders also report pressure altitude.
9.
The true airspeed can be calculated as a function of equivalent airspeed and local air density, ( or temperature and pressure altitude which determine density ).
10.
Aircraft Mode " C " transponders report the pressure altitude to air traffic control; corrections for atmospheric pressure variations are applied by the recipient of the data.
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