angle of attack

angle of attack

noun
1.
Also called, especially British, angle of incidence. Aeronautics. the acute angle between the chord of an aircraft wing or other airfoil and the direction of the relative wind.
2.
Railroads. the angular attitude of a wheel flange to the rail, especially on curves.

Origin:
1905–10

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
angle of attack
 
n
Also called: angle of incidence the acute angle between the chord line of an aerofoil and the undisturbed relative airflow

Collins English Dictionary - Complete & Unabridged 10th Edition
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