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  2. Altimeter setting - Wikipedia

    en.wikipedia.org/wiki/Altimeter_setting

    QNH and QFE are arbitrary Q codes rather than abbreviations, but the mnemonics "nautical height" (for QNH) and "field elevation" (for QFE) are often used by pilots to distinguish between them. QNH and QFE will have errors when not at station elevation. QFF is aerodrome pressure (QNH) reduced to sea level. It is designed to read zero at sea ...

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

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

    Abbreviation Term Notes QAR quick access recorder: QCM quality and compliance monitoring QEC quick engine change QFE 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 ...

  4. Aeronautical Code signals - Wikipedia

    en.wikipedia.org/wiki/Aeronautical_Code_signals

    QNE: Altimeter reading when subscale set 1013.25 hPa (atmospheric pressure at sea level in the International Standard Atmosphere) [2] QNH: The pressure set on the subscale of the altimeter so that the instrument indicates its height above sea level (the altimeter will read runway elevation when the aircraft is on the runway). [1] Request Leeds QNH

  5. Pressure altitude - Wikipedia

    en.wikipedia.org/wiki/Pressure_altitude

    QNE is an aeronautical code Q code. The term refers to the indicated altitude at the landing runway threshold when 1013.25 m b {\displaystyle 1013.25~\mathrm {mb} } or 29.92 i n H g {\displaystyle 29.92~\mathrm {inHg} } is set in the altimeter's Kollsman window.

  6. Flight level - Wikipedia

    en.wikipedia.org/wiki/Flight_level

    To distinguish altitude from flight level, "on standard" or "on QNH" would be added during initial clearance, such as "climb 4,800 metres on standard" or "descent 2,400 metres on QNH 1020". RVSM was implemented in China at 16:00 UTC on 21 November 2007, and in Mongolia at 00:01 UTC on 17 November 2011.

  7. Q code - Wikipedia

    en.wikipedia.org/wiki/Q_code

    This is one of a set of articles on telegraphy. The Q-code is a standardised collection of three-letter codes that each start with the letter "Q". It is an operating signal initially developed for commercial radiotelegraph communication and later adopted by other radio services, especially amateur radio.

  8. QN Signals - Wikipedia

    en.wikipedia.org/wiki/QN_Signals

    QNE* A broadcast announcement to all stations by the Net Control Station, asking all stations on the Net to stop transmitting and stand by. QNF An announcement that the net is no longer "Directed", but is now free. c.f. QND. QNG A request for a named station to assume the role of Net Control Station. QNH

  9. Automatic terminal information service - Wikipedia

    en.wikipedia.org/wiki/Automatic_Terminal...

    10 kilometres or more (maximum) Cloud cover Few @ 2800 feet and broken @ 5000 feet Temperature 27 °C Dew point: 26 °C QNH (pressure @ mean sea level) 1020 - hectoPascals is dictated below 1018 hPa QFE (pressure @ airfield elevation) 1017 - hectoPascals is dictated below 1080 hPa Other information

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