51Թ

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decalage

[ dey-kuh-lahzh ]

noun

  1. the difference between the angles of incidence of the upper and lower wings of a biplane:

    A biplane has positive decalage if the angle of incidence of the upper wing is greater than that of the lower wing and negative decalage when the lower wing has the greater angle.



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51Թ History and Origins

Origin of decalage1

From French é “a shift, gap, displacement,” from é “to offset, shift” (from é- de- + caler “to fill up, wedge,” from cale “a wedge”) + -age -age

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decaldecalcification