The acute angle at which a moving airfoil meets the airstream.
The angle between the velocity vector and the longitudinal axis of a missile or rocket.
(from the article `airplane`) The lift an airfoil generates is also affected by its `angle of attack`—i.e., its angle relative to the wind. Both lift and angle of attack can be ... ...plane of rotation of the rotor disc and the chord line of the airfoil. The pilot uses the collective and cyclic pitch control (see below) t...
In the theory of airplane wings, the acute angle between the wing profile (roughly, measured along its bottom) and the wing's motion relative to the surrounding air. In the case of a rocket rising through the atmosphere, it is the angle between the long axis of the rocket and the direction of the ai...
The angle at which the wing is presented to the apparent wind. With square parachutes this changes when the brakes are applied
The angle between the squeegee face and the stencil plane. 
The angle of a sail in relation to the direction of the wind.
The angle of a sail in relation to the direction of the wind.
The angle at which a wing strikes the air stream 
The angle between an aerofoil's chord line and the airflowThe angle of a sail in relation to the direction of the wind.
[n] - the acute angle between the direction of the undisturbed relative wind and the chord of an airfoil
In a flying bird, the angle between the main surface of the wing and the oncoming airstream.
The angle at which a wing strikes the air stream.The ability to create lift is dependent on the airflow remaining smooth around the airfoil. At zero degrees angle of attack there is just a small turbulent wake.As the angle of attack is increased the lift increase and the point at which the airflow separates from the upper surface of the wing moves ...
The angle between the chord line of an aerofoil and the relative airstream, no matter what the angle of the aeroplane. This is also the True Angle of Downwash - the angle through which the airstream relative to the main axis of the aeroplane is deflected by the aerofoil.
noun the acute angle between the direction of the undisturbed relative wind and the chord of an airfoil
The angle of relative air flow to the blade in a wind turbine.
The angle of relative air flow to the blade chord.
(AOA) The acute angle at which a moving airfoil meets the airstream.
The angle at which a wing meets the relative wind.
The position or degree of angle that the hand enters the water.
Also called,the acute angle between the chord of an aircraft wing or other airfoil and the direction of the relative wind. · the angular attitude of a wheel flange to the rail, esp. on curves.
The angle of an Indy car style wing. The angle is varied by track to produce optimal down-force and minimize drag.