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  2. Aeronautical Code signals - Wikipedia

    en.wikipedia.org/wiki/Aeronautical_Code_signals

    The pressure set on the subscale of the altimeter so that the instrument indicates its height above the reference elevation being used [e.g. aerodrome elevation] [1] Runway in use 22 Left, QFE 990 hectopascals QFF: Atmospheric pressure at a place, reduced to MSL using the actual temperature at the time of observation as the mean temperature. QNE

  3. Aeronautical chart conventions (United States) - Wikipedia

    en.wikipedia.org/wiki/Aeronautical_chart...

    Terrain is color-coded for its elevation and major roads, cities, and bodies of water are shown for visual reference, as well as other identifiable structures (e.g., stadiums and water towers). However, most of the layers of data on the charts include specific information about obstacles, airspace designations, and facility information ...

  4. Runway visual range - Wikipedia

    en.wikipedia.org/wiki/Runway_visual_range

    A pilot's view of Lisbon Airport's runway 21 in fog; runway visual range is about 200 m (660 ft). In aviation, the runway visual range (RVR) is the distance over which a pilot of an aircraft on the centreline of the runway can see the runway surface markings delineating the runway or the lights delineating the runway or identifying its centre line.

  5. Elevation - Wikipedia

    en.wikipedia.org/wiki/Elevation

    In aviation, the term elevation or aerodrome elevation is defined by the ICAO as the highest point of the landing area. It is often measured in feet and can be found in approach charts of the aerodrome. It is not to be confused with terms such as the altitude or height. [1] Part of a topographic map of Haleakala , showing elevation.

  6. Runway - Wikipedia

    en.wikipedia.org/wiki/Runway

    Runway 13R at Palm Springs International Airport An MD-11 at one end of a runway. In aviation, a runway is an elongated, rectangular surface designed for the landing and takeoff of an aircraft. [1] Runways may be a human-made surface (often asphalt, concrete, or a mixture of both) or a natural surface (grass, dirt, gravel, ice, sand or salt).

  7. List of aviation, avionics, aerospace and aeronautical ...

    en.wikipedia.org/wiki/List_of_aviation,_avionics...

    the Q-code for: Atmospheric pressure at aerodrome elevation (or at runway threshold) QNE: the Q-code for pressure altitude: QNH: the Q-code for: Altimeter sub-scale setting to obtain elevation when on the ground, i.e. altitude above MSL: QRA quick reaction alert: QRH quick reference handbook: QTOL: quiet take-off and landing [19]

  8. Transponder landing system - Wikipedia

    en.wikipedia.org/wiki/Transponder_Landing_System

    TLS is an active surveillance and tracking system and its approach procedures are configured in software vs. being dependent on physical antenna locations, so its siting criteria are flexible and the entire system can be collocated on a small footprint adjacent to the runway threshold and operates on a single power supply.

  9. Obstacle-free zone - Wikipedia

    en.wikipedia.org/wiki/Obstacle-free_zone

    The obstacle-free zone (OFZ) is a 3D volume of airspace below 150 feet (46 m), above the established airport elevation which protects for the transition of aircraft to and from the runway. The Obstacle Free Zone (OFZ) clearing standard precludes taxiing and parked airplanes and object penetrations, except for frangible navigation aid ( NAVAID ...