indicated altitude


Also found in: Acronyms.

indicated altitude

[′in·də‚kād·əd ′al·tə‚tüd]
(aerospace engineering)
The uncorrected reading of a barometric altimeter.

indicated altitude

The altitude as shown by an altimeter. On a pressure or barometric altimeter, it is altitude as shown uncorrected for instrument error and uncompensated for variation from standard atmospheric conditions. See altimeter.
References in periodicals archive ?
As the observation ages, and as the distance from or height above the station increases, there is a greater chance that the indicated altitude will be affected by localized temperature and pressure conditions existing at the aircraft's location.
Similarly, as height above the reporting station increases, the effects of a non-standard-temperature lapse rate will cause a larger error in the indicated altitude.
Indicated altitude is the value displayed on the pressure altimeter.
Calibrated altitude, meanwhile, is indicated altitude corrected for the installation/position error explained earlier.
Hysteresis error is a lag in indicated altitude due to the elastic properties of the material within the altimeter.
Add this to the elevation of the airport (or touchdown zone, if you'd like to be precise), and it should be close to your indicated altitude as you slide down the glideslope.
If a three-degree standard glideslope is elected, dividing by 300 the indicated altitude minus the field elevation will determine a start-down point from the runway.
can make the indicated altitude higher than true altitude.