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altimeter sub-scale setting to obtain elevation when on the ground
- Definição1
- Altimeter subscale setting to obtain elevation when on the ground.
- Fonte1
- GARCÍA DE LA CUESTA, Jorge. Aviation terminology: english-spanish aeronautical dictionary = Terminología aeronáutica: español-inglés: diccionario aeronáutico. 2. ed. [s.l.]: Díaz de Santos, 2011.
- Definição2
- In the Q-code system, the atmospheric pressure at mean sea level.
- Fonte2
- CUSHING, Steven. Fatal words: communication clashes and aircraft crashes. Chicago: The University of Chicago Press, 1994.
- Definição3
- Pressure at mean sea level, reduced from QFE by applying corrections according to the International Civil Aviation Organization’s standard atmosphere Coordinated universal time.
- Fonte3
- CROCKER, David. Dictionary of aviation. 2nd ed. London: A&C, 2005.
- Fonte4
- INTERNATIONAL CIVIL AVIATION ORGANIZATION. Manual of aeronautical meteorological practice. 10th. ed. Montreal, 2015. (Doc. 8896 AN/893).
- Nota adicional1
- QNH should be pronounced using individual letters in non-phonetic form.
- Nota adicional2
- QNH (atmospheric pressure at nautical height) is defined as the pressure value at which an aircraft altimeter is set so that it will indicate the official elevation of the aerodrome when the aircraft is on the ground at that location. QNH is calculated using the value for QFE and the pressure altitude relationship of the ICAO standard atmosphere.
- Contexto
- QNH is the altimeter showing aerodrome elevation when the aircraft is on the ground and QNH is set on the altimeter sub-scale. QFE is the altimeter showing zero elevation when the aircraft is on the ground and QFE is set on the altimeter sub-scale. QFE is normally used only at the aerodrome where it is provided on request or, by local agreement, on a regular basis, in addition to QNH. Only QNH is included in METAR. QFE is used only in local routine reports.
- Spanish
- reglaje de subescala de altímetro para obtener elevación en tierra