Definitions for decalage

This page provides all possible meanings and translations of the word decalage

Wiktionary

  1. decalage(Noun)

    the difference in angle of incidence of the two wings of a biplane

  2. decalage(Noun)

    the angle between two geometric lines that define an aerofoil

Freebase

  1. Decalage

    Decalage on a fixed-wing aircraft is the angle difference between the upper and lower wings of a biplane, i.e. the acute angle contained between the chords of the wings in question. The decalage is said to be positive when the upper wing has a higher angle of incidence than the lower wing, and negative when its angle of incidence is lower. Positive decalage results in greater lift from the upper wing than the lower wing, the difference increasing with the amount of decalage. In real life the biplane top wing is usually rigged with less angle of incidence - i.e. negative decalage, causing the airstream separation and ensuing loss of lift occur first on the lower wing, providing the biplane with extra margin of stability in stall. Decalage angle can also refer to the difference in angle of the chord line of the wing and the chord line of the horizontal stabilizer.


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"decalage." Definitions.net. STANDS4 LLC, 2015. Web. 2 Sep. 2015. <http://www.definitions.net/definition/decalage>.

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