- 업종: 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 ...
Airspace which overlies the continental land mass of the United States plus Hawaii and U.S. possessions. Domestic airspace extends to 12 miles offshore.
Industry:Aviation
All species and varieties of cirrus, cirrocumulus, and cirrostratus clouds. Cirriform clouds are composed mostly or entirely of small ice crystals, usually transparent and white. Cirriform clouds often produce a halo around the sun or moon that is not observed with other cloud forms.
The average height of cirriform clouds range upward from 20,000 feet in the middle latitudes.
Industry:Aviation
All the equipment needed to service and maintain aircraft on the ground. Ground support equipment includes such equipment as tugs to move the aircraft and auxiliary power units to provide electrical power and compressed air when the engines are not running.
Industry:Aviation
Alpha iron into which some carbon has been dissolved. It exists at temperatures below its critical temperature.
Industry:Aviation
Alternating current electricity produced by more than one set of generator windings. The most commonly used polyphase electricity has three phases.
Industry:Aviation
Alternating current whose frequency is between about 10 kilohertz
(10 x 103 hertz) and 100 gigahertz (100 x 109 hertz). Radio-frequency alternating current is used for various types of communications and navigation.
Industry:Aviation
Alternating current whose waveform is that produced by a rotary generator. The instantaneous value of sine-wave voltage is found by multiplying its peak value by the sine of the angle through which the rotor of the generator has turned.
For example, when the rotor has turned 30° from the position in which it produces zero voltage, the instantaneous voltage is one-half the peak voltage (the maximum voltage it can produce). The sine of 30° is 0.5, or one-half. When the rotor has turned 45°, the instantaneous voltage is 0.707 time the peak voltage. The sine of 45° is 0.707. When all of the instantaneous values of sine-wave alternating current are plotted, a smooth sine curve results.
Industry:Aviation
Aluminum alloy tubing used to house electrical wires in areas where they are subject to mechanical damage.
Industry:Aviation
