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transition layer
Definição1
Transition layer is the airspace between the transition altitude and the transition level. Aircraft descending through the transition layer will set altimeters to local station pressure, while departing aircraft climbing through the transition layer will be using standard altimeter setting (QNE) of 29.92 inches of mercury, 1013.2 millibars, or 1013.2 hectopascals.
Fonte1
CRANE, Dale (ed.). Dictionary of aeronautical terms. 2nd ed. Renton: ASA, 1991.
Definição2
The airspace between the transition altitude and the transition level.
Fonte2
INTERNATIONAL CIVIL AVIATION ORGANIZATION. Aircraft operations: flight procedures. 5.ed. Montreal, 2006. Volume 1. (Doc. 8168)
Nota Adicional1
Aircraft descending through the transition layer will set altimeters to local station pressure, while departing aircraft climbing through the transition layer will be using standard altimeter setting (QNE) of 29.92 inches of Mercury, 1013.2 millibars, or 1013.2 hectopascals.
Contexto
While passing through the transition layer, vertical position shall be expressed in terms of: a) flight levels when climbing; and b) altitude when descending.
Subárea
Air Navigation
Français
couche de transition