Fluglevel

Fluglevel is the German term for flight level, an aviation reference used to specify altitude independent of local air pressure. It provides a standard way to describe how high an aircraft is flying.

Definition: A flight level represents an altitude in hundreds of feet above mean sea level, determined with the altimeter set to the standard pressure of 1013.25 hPa. The notation FL followed by a number identifies the level; for example, FL100 equals 10,000 feet.

Usage: Flight levels are primarily used for IFR traffic above the transition altitude to maintain vertical separation across regions with different local pressure settings. They provide a consistent reference frame for air traffic control and pilots.

Transition: The transition altitude is the altitude at which pilots and ATC switch from using the local QNH to the standard pressure setting of 1013.25 hPa and begin to use flight levels. The exact transition altitude and level vary by country and airspace, so the point at which flight levels are used differs around the world.

In practice, Fluglevel standardizes altitude references for international aviation, ensuring reliable separation and coordination of aircraft as they cruise through controlled airspace.