- 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 form of logic in which the more positive voltage represents a logic one and the less positive voltage or zero voltage represents a logic zero.
Industry:Aviation
The forward aerodynamic force produced by a propeller, fan, or turbojet engine as it forces a mass of air to the rear, behind the airplane. A propeller produces its thrust by accelerating a large mass of air by a relatively small amount. A turbojet engine produces its thrust by accelerating a smaller mass of air by a much larger amount. The mass and acceleration of the air moved by a fan is between those of the propeller and the jet.
Industry:Aviation
The forward section of an aircraft reciprocating engine crankcase that contains the thrust bearing and propeller reduction gears.
Industry:Aviation
The framework of formers and stringers attached to the main truss of a truss-type aircraft fuselage. The superstructure gives the fuselage its shape, but it is not a main strength-carrying part of the fuselage.
Industry:Aviation
The frequency at which the current gain (alpha) of a common-base transistor stage drops off to 0.707 of its low-frequency value.
Industry:Aviation
The frequency of alternating current that produces the same inductive reactance and capacitive reactance in a circuit. Capacitive reactance decreases as the frequency increases, but the inductive reactance increases with the frequency. At only one frequency, the resonant frequency (fr), the inductive reactance, and capacitive reactance are the same.
Industry:Aviation
The frequency of alternating current used to provide electrical power. In the United States, 60 hertz is the most commonly used power frequency. In other parts of the world, 50-hertz AC is used. Aircraft AC electrical systems use 400 hertz as the power frequency.
Industry:Aviation
The frequency of the alternating current carrier that produces the electromagnetic waves which radiate from a radio transmitting antenna.
The audio-frequency signal from the microphone modulates (changes the amplitude or the frequency) of the carrier.
Industry:Aviation
The frequency of the carrier signal produced by a radio transmitter.
This carrier frequency is assigned by the Federal Communications Commission (FCC) for the particular transmitter or the particular type of transmission.
Industry:Aviation
