- 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 ...
An integrated circuit memory device for a digital computer. Read-only memory is stored in PROM as a series of logic zeros and ones, by burning out certain diodes in it. Once the PROM is programmed, it cannot be changed.
There is an erasable, programmable read-only memory (EPROM) that can be erased by exposing it to ultraviolet light. It can then be reprogrammed by using a special programmer.
Industry:Aviation
An intentional maneuver involving an abrupt change in an aircraft’s attitude, an abnormal attitude, or abnormal acceleration not necessary for normal flight. Loops, spins, and rolls are normally considered to be acrobatic flight.
Industry:Aviation
An interagency agreement which provides for the effective utilization of all available facilities in all types of search and rescue missions.
Industry:Aviation
An interference fit between machine parts. The hole into which a part is to fit is slightly smaller than the part itself, and the two can be assembled only by pushing the part into the hole with a press.
Industry:Aviation
An interference fit between mechanical parts in which the parts can be assembled only by driving them together with a sharp blow from a 12- to 14-ounce hammer.
Industry:Aviation
An interference fit between pieces of an assembly. The hole into which a part is to fit is enlarged by heating it, and the piece to fit into the hole is shrunk by chilling it. The two pieces are assembled while their temperatures are different. Then, when they reach the same temperature, the fit is so tight no relative movement can take place between the parts.
Industry:Aviation
An internal combustion engine in which energy is released from the fuel in a constant-pressure cycle. Air is taken into the engine and compressed by either an axial-flow or a centrifugal compressor. The compressed air then passes into the combustion chambers where fuel is sprayed into a continuously burning fire. The burning fuel heats and expands the air which then flows through a turbine, where some of the energy is extracted to turn the compressor. The energy remaining in the gases leaving the engine causes the exhaust velocity to be greater than that of the air entering the engine, and this acceleration produces thrust.
Some gas turbine engines use additional stages of turbines to extract energy from the hot gases to drive such devices as fans, propellers, rotors, generators, or pumps. Gas turbine engines are far superior to reciprocating engines, with regard to their weight-to-horsepower ratio.
Industry:Aviation
An internally threaded fastener with two wings protruding from its sides. The wings allow the nut to be turned onto a bolt using only the fingers. No provision is made for turning a wing nut with a wrench.
Industry:Aviation
An internationally agreed upon system of code words identifying the letters of the alphabet and numbers. The words in the phonetic alphabet have been carefully chosen so that people of all language backgrounds can pronounce them.
Industry:Aviation
An interstage coupling transformer used in a superheterodyne radio receiver. Both the primary and secondary windings of the IF transformer are tuned to the intermediate frequency. See intermediate frequency.
The output winding of the IF transformer feeds the input of the IF amplifier with a signal whose frequency is that to which the IF transformer is tuned.
Industry:Aviation
