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altimeter setting
Definição1
Station pressure (the barometric pressure at the location the reading is taken) which has been corrected for the height of the station above sea level.
Fonte1
FEDERAL AVIATION ADMINISTRATION. Pilot's handbook of aeronautical knowledge. [s.l.], 2008. Disponível em: http://www.faa.gov/regulations_policies/handbooks_manuals/aviation/pilot_handbook/media/PHAK%20-%20Cover-Preface.pdf. Acesso em: 26 jun. 2014.
Definição2
The station pressure corrected for the height of the station above sea level. When this pressure (QNH) is set in the altimeter window (also known as a Kollsman window), the altimeter indicates the height above mean sea level. The setting may be in inches, millibars, or hectopascals.
Fonte2
KUMAR, Bharat (ed.). An illustrated dictionary of aviation. New York: McGraw-Hill, c2005. 752 p.
Definição3
Value of the atmospheric pressure used to adjust the subscale of a pressure altimeter so that it indicates the height of an aircraft above a known reference surface.
Fonte3
WORLD METEOROLOGICAL ORGANIZATION. International meteorological vocabulary. 2nd ed. Geneva, 1992. (WMO, n.182). Disponível em: < https://library.wmo.int/index.php?lvl=notice_display&id=220#.XeauGOhKiUk >. Acesso em: 11 dez. 2019.
Fonte4
INTERNATIONAL CIVIL AVIATION ORGANIZATION. Aircraft operations: flight procedures. 5.ed. Montreal, 2006. Volume 1. (Doc. 8168)
Contexto
Procedures that require the use of forecast altimeter setting are so annotated on the approach charts.
Subárea1
Aeronautical Meteorology
Related Term
Kollsman number
Kollsman station barometer
Kollsman window
Português
ajuste de altímetro