QFE

Defining QFE in Aeronautics

QFE is a part of the Q code system used in aeronautics to determine a specific barometric altimeter setting. Its purpose is to ensure that when an aircraft is on the reference datum point of an airfield, the altimeter reads zero. This allows pilots to accurately determine their altitude above the airfield, which is crucial for safe takeoffs, landings, and maneuvering in the immediate vicinity of the airfield.

QFE is often used in situations where knowing the altitude in relation to the airfield is more important than knowing the exact altitude above sea level. It is particularly useful for small airfields in mountainous or hilly terrain where the altitude above sea level can vary quite dramatically.

Overall, QFE is an essential tool for pilots and air traffic controllers when it comes to ensuring the safety and efficiency of flight operations.