The usual results of a fixed-wing stall are a sharp drop in aircraft altitude and a dive.

The directive specifically excluded units of measurement used in international treaties relating to rail traffic, aviation and shipping such as expressing aircraft altitude in feet.

However, since the ARSR-4 is a 3D radar, it is capable of determining aircraft altitude independently of its associated Beacon (albeit less accurately).

A height finder is a ground based aircraft altitude measuring device.

As air density decreases with an increase in altitude, the throttle valves were moved to an open position by boost pressure corresponding to aircraft altitude.

Rate of fuel burn depends on ambient temperature, aircraft speed, and aircraft altitude, none of which are entirely predictable.

A mode-C interrogation produces an 11-pulse response (pulse D1 is not used), indicating aircraft altitude as indicated by its altimeter in 100-foot increments.

This was apparently used to more accurately measure the aircraft altitude.

It was like video cut: One instant they had been at aircraft altitudes, the next they were in space.

The cabin pressure is controlled by a "Cabin Pressure Schedule," which associates each aircraft altitude with a cabin altitude.