- Industry: Aviation
- Number of terms: 16387
- Number of blossaries: 0
- Company Profile:
Aviation Supplies & Academics, Inc. (ASA) develops and markets aviation supplies, software, and books for pilots, flight instructors, flight engineers, airline professionals, air traffic controllers, flight attendants, aviation technicians and enthusiasts. Established in 1947, ASA also provides ...
The actual distance between an aircraft and the terrain over which it is flying. Absolute altitude is measured with an electronic altimeter.
Industry:Aviation
The acute angle formed between the chord line of an airfoil and the direction of the air that strikes the airfoil.
Industry:Aviation
The acute angle formed between the chord line of an airfoil and the longitudinal axis of the aircraft on which it is mounted.
Industry:Aviation
The acute angle formed between the chord line of the compressor blades and the direction the air strikes the blades. This angle of attack is affected by both the velocity of the air flowing through the compressor and the RPM of the compressor.
If the RPM of the compressor is too high for the velocity of the air flowing through the engine, the angle of attack will be excessively high, and the compressor blades can stall.
Industry:Aviation
The acute horizontal angle formed between the plane of symmetry of an aircraft and the direction from which the wind is striking the aircraft.
Industry:Aviation
The additional lift produced by a helicopter rotor as the helicopter changes from hovering to forward flight. The lift produced by a helicopter rotor decreases as the helicopter rises vertically out of ground effect. But if the helicopter moves forward at an airspeed of somewhere around 15 to 20 miles per hour, the rotor system becomes more efficient in forcing the air downward, and the lift increases. This increased lift caused by the forward motion of the helicopter is called translational lift.
Industry:Aviation
The adjustment of chordwise balance of a helicopter rotor by moving the tip of one of the blades backward or forward in its plane of rotation by changing the length of the drag brace.
Industry:Aviation
The adjustment of the pointer of an electrical measuring instrument so that the needle rests over the zero mark on the dial when no current is flowing through the moving coil of the meter.
Industry:Aviation
The aerodynamic force that acts on a rotating propeller blade to increase its blade angle.
The axis of rotation of a blade is near the center of its chord line, and the center of pressure is between the axis and the leading edge. Aerodynamic lift acting through the center of pressure tries to rotate the blade to a higher pitch angle.
Industry:Aviation
The air in a mass formed over an arctic area of ice and snow. The air has the characteristics of this type of area.
Industry:Aviation
