- 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 ...
A type of radio antenna made of a number of turns of wire wound around a rod of powdered iron.
The powdered iron increases the permeability of the core of the coil and increases the radio signal picked up by the coil.
Industry:Aviation
A type of radio antenna that has the same field strength in all horizontal directions. An omnidirectional antenna is also called a nondirectional antenna.
Industry:Aviation
A type of radio code transmission in which the carrier wave is modulated with a continuous audio-frequency tone. Code is sent by transmitting the modulated carrier in short and long pulses, or bursts. The short pulses are called dots, and the long pulses are called dashes.
Modulated continuous wave code differs from continuous wave (CW) code in that a beat-frequency oscillator is not needed in the receiver for MCW to be heard.
Industry:Aviation
A type of radio transmission in which only one of the sidebands of the signal is transmitted. The other sideband and the carrier wave are suppressed.
Industry:Aviation
A type of radiosonde launched by a rocket which makes its measurements during a parachute descent. Rocketsondes are capable of obtaining soundings to a much greater height than is possible by balloon or aircraft.
Industry:Aviation
A type of range marking for aircraft instruments that identifies a caution area. A yellow arc on the dial of an airspeed indicator identifies a range of airspeeds that can be safely flown in calm air, but the aircraft must not be flown at these speeds in rough air. There must be no abrupt maneuvers made while flying in this speed range.
Industry:Aviation
A type of rapid vibration of a hydraulic pump caused by the pump taking in some air along with the hydraulic fluid.
Industry:Aviation
A type of recessed-head screw designed to be driven with a power screwdriver. The recess in the head of a Phillips screw is in the form of a cross, with the sides of the recess tapered and the bottom of the recess nearly flat.
A Reed and Prince screw is similar to a Phillips screw, but the edges of the recess in a Reed and Prince screw are straight, rather than tapered, and the bottom of the recess is sharp.
Industry:Aviation
A type of reciprocating engine in which the cylinders are arranged radially around a small crankcase. Static radial engines are different from rotary radial engines in that their cylinders do not rotate with the propeller. Static radial engines were at one time the most popular configuration of engine used in airplanes, because of their low weight-to-power ratio. But they have so much frontal area that they produce too much drag for modern high-speed aircraft.
Radial engines can have three, five, seven, or nine cylinders in one row. Two or four rows of cylinders can be stacked together to make an engine with 14, 18, 28, or 36 cylinders.
Industry:Aviation
A type of reciprocating engine that recovers some of the energy normally lost through the exhaust by using a power-recovery turbine (PRT) in the exhaust. Some of the energy remaining in the exhaust gas leaving the cylinders is used to spin a turbine connected through a fluid coupling to the crankshaft. A portion of this energy is returned to the crankshaft.
Industry:Aviation
