Definition of angle of attack in US English:

angle of attack

noun

Aeronautics
  • The angle between the chord of an airfoil and the direction of the surrounding undisturbed flow of gas or liquid.

    ‘move forwards on the stick to reduce the angle of attack’
    • ‘The ailerons - the wing's control surfaces - remain effective at the highest angles of attack, and controllability of the aircraft is retained even in the event of airflow separating from the remainder of the wings' surface.’
    • ‘A stall is nothing more than exceeding the critical angle of attack.’
    • ‘Do not use flaps - extending flaps increases the angle of attack of the horizontal stabilizer, which may also be damaged.’
    • ‘Your aircraft's wing interprets vertical gusts as a change in the angle of attack, thus significantly increasing the load factor.’
    • ‘Flaps can move the pitch angle higher toward the critical angle of attack.’