- المجال: 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 condition in an aircraft landing in which the aircraft touches the ground before it reaches the end of the runway or the landing strip. A pilot can correct an undershot approach by applying engine power as soon as it is evident the aircraft will not reach the spot of intended touchdown.
Industry:Aviation
A condition in an electrical generator which has both a series and a shunt field in which the effect of the shunt field is greater than that of the series field. The output voltage tends to drop as the electrical load increases.
Industry:Aviation
A condition in an electronic amplifier in which part of the amplified signal is fed back from the output to the input. Positive feedback, also called regenerative feedback, is used to reinforce the input signal.
Industry:Aviation
A condition in an electronic circuit in which a part of the output signal is fed back into the input 180° out of phase with the input signal. Negative feedback decreases circuit amplification and also circuit distortion. It makes the output signal a truer copy of the input signal.
Industry:Aviation
A condition in the fuel metering system of a large reciprocating engine in which the fuel-air mixture is leaned out, or deriched, when antidetonation injection (ADI) fluid is injected into the engine. If the mixture were not leaned, the addition of the ADI fluid would enrich the mixture so much the engine could not produce its maximum power.
Industry:Aviation
A condition in the installation of a propeller on a splined shaft when either the front or rear cone contacts an obstruction that prevents the cone seating properly inside the propeller hub.
Industry:Aviation
A condition in the operation of a gas turbine engine in which the fire in the engine unintentionally goes out.
If too much fuel is sprayed into the combustors, the fire will go out, and this is called a rich flameout. If there is too little fuel, the fire will go out, and this is called a lean flameout.
Industry:Aviation
A condition in which a flat piece of sheet metal is stretched so it snaps in and out between rows of rivets, in the same way the bottom of an oil can snaps in and out.
Industry:Aviation
A condition in which a gas turbine engine starts, but its internal temperature rises high enough to damage the engine. Any time an engine has a hot start, it must be given a special inspection to determine if any damage has been done.
Industry:Aviation
