10 Terms
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Airplanes & equipment
Industry: Aviation
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Airplanes & equipment
Artificial horizon
Aviation; Airplanes & equipment
A vacuum-powered panel instrument that displays pitch and roll movements about the lateral and longitudinal axes.
Aspect ratio
Aviation; Airplanes & equipment
The ratio of the span to the chord of an airfoil—a high-aspect ratio wing has wide span and narrow chord, and vice-versa for a low-aspect ratio wing.
Balanced control surface
Aviation; Airplanes & equipment
A movable control surface, as an aileron or rudder, having an added physical extension or weights forward of the hinge-point to reduce forces on a joystick or yoke. See ELEPHANT EARS (2).
Autogyro, autogiro
Aviation; Airplanes & equipment
An aircraft, often wingless, with unpowered rotary airfoil blades that auto-rotate and serve as wings as they move through the air when mounted on a powered aircraft (or, in some cases, a glider). ...
Bernoulli effect or law or theorem
Aviation; Airplanes & equipment
Since the pressure of a fluid is proportional to its velocity, airflow over the upper surface of an airfoil causes suction (lift) because the airstream has been speeded up in relation to positive ...
Auto-rotation
Aviation; Airplanes & equipment
Automatic rotation of rotary blades from a helicopter in an unpowered glide or the forward movement of an autogyro.
Bleed air
Aviation; Airplanes & equipment
Hot air at high pressure, usually from the bypass section of a gas turbine engine, for de-icing, heating, and other uses.
