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Transition Altitude/Flight Level The transition altitude/flight level can be either: • Fixed for the whole country (e.g., FL 180 in the United States); • Fixed for a given airport (as indicated on the approach chart); or, • Variable as a function of QNH (an altimeter setting that causes
Flight levels solve this problem by defining altitudes based on a standard air pressure at sea level. All aircraft operating on flight levels calibrate to this setting regardless of the actual sea level pressure.
Flight Level (FL) A surface of constant atmosphere pressure which is related to a specific pressure datum, 1013.2hPa, and is separated from other such surfaces by specific pressure intervals. Altitude above sea-level in 100 feet units measured according to a standard atmosphere.
It offers a comprehensive reference for navigating the various stages of flight under Visual Flight Rules (VFR) and Instrument Flight Rules (IFR), including training, planning, departure, enroute, approach, and taxiing procedures.
When flying VFR at night, in addition to the altitude appropriate for the direction of flight, pilots should maintain an altitude which is at or above the minimum en route altitude as shown on charts. This is especially true in mountainous terrain, where there is usually very little ground reference.
28 sie 2010 · Designated Cruising Altitudes are required for flights operating at more than 3,000 feet Above Ground Level (AGL). When a pilot is operating at more than 3,000 feet above the surface, they are to fly at an altitude appropriate for their direction of flight.
Symbols shown are for the Instrument Flight Rules (IFR) Enroute Low and High Altitude Charts.
