4 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z



Back to: "D"

drift down
Definição1
A gradual en route descent from a higher altitude.
Fonte1
KUMAR, Bharat (ed.). An illustrated dictionary of aviation. New York: McGraw-Hill, c2005. 752 p.
Definição2
A procedure by which an airplane with one or more inoperative engines, and the remaining engines producing maximum continuous thrust (MCT), and while maintaining a specified speed (usually best L/D x 1.01%), descends to the altitude at which the airplane can maintain altitude and being to climb (this attitude is defined as driftdown height).
Fonte2
CRANE, Dale (ed.). Dictionary of aeronautical terms. 4th ed. Newcastle: ASA, 2006.
Definição3
Gradual en route descent from top of flight profile (now rare).
Fonte3
GUNSTON, Bill. The cambridge aerospace dictionary. Cambridge: Cambridge University, 2004. vii, 740 p. (Cambridge aerospace series.)
Fonte4
INTERNATIONAL CIVIL AVIATION ORGANIZATION. Training manual. Part D-3: flight operations officers/flight dispatchers. 2nd ed. Montreal, 1998. (Doc. 7192-AN/857 Part D-3)
Nota adicional1
It is a flight procedure.
Contexto
Plans for contingencies such as: - terminal weather below operating minima; - situations for which point of no return or critical point estimates would be valuable; - drift down after engine failure.
Subárea1
Air Navigation
Related Term
drift
Variante
drift-down
driftdown
Português
descida progressiva