المسرد
Navigation & Airspace
Transition Altitude
التعريف
The altitude at which aircraft switch from using local altimeter pressure to the standard altimeter setting (29.92 inHg). Above this altitude, altitude is expressed as flight levels.
مصطلحات ذات صلة
Flight Level
A standard nominal altitude of an aircraft based on a standard altimeter setting (29.92 inHg / 1013.25 hPa). Flight Level 350 means 35,000 feet. Used above the transition altitude.
Airspace Classification
The categorization of airspace into classes (A through G) based on the level of air traffic control service provided and the flight rules that apply. Class A is the most restrictive.