- 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 ...
An axial-flow compressor blade whose tip thickness is reduced to give it a higher resonant frequency so it will not be subject to the vibrations that would affect a blade with a squared tip. The profile tip also provides a more aerodynamically efficient shape for the high-velocity air that is moved by the blade. Profile tips often touch the housing and make a squealing noise as the engine is shut down. For this reason, profile tips are sometimes called squealer tips.
Industry:Aviation
An axial-flow turbine engine that has two independent compressors, each driven by its own stage or stages of turbines.
The high-pressure, or N2, compressor is speed governed by the fuel control, but the low-pressure, or N1, compressor is not governed but seeks its own best speed as the ambient air density changes.
Industry:Aviation
An easily removable panel that allows access to some portion of an aircraft structure for inspection and maintenance.
Industry:Aviation
An eccentric used to change rotary motion into linear motion. The valve operating cams used in a reciprocating engine are eccentrics made onto the cam shaft. These eccentrics are enlarged portions of the cam shaft that rotate about a center different from the shaft’s center. The cam followers that operate the valves ride on the cam lobes, and as the cam shaft rotates, the cam lobes move the cam followers up and down in a direction perpendicular to the axis of the cam shaft.
Industry:Aviation
An eccentric, or lobe, on a rotating shaft that changes rotary motion into linear motion.
A cam, or lobe, on the cam shaft of a reciprocating engine opens the intake and exhaust valves at the proper time relative to the position of the piston in the cylinder.
Industry:Aviation
An echo caused by a physical phenomenon that is not necessarily discernible to the eye. Angels may be observed when abnormally strong temperature and/or moisture gradients exist, and they are sometimes attributed to insects or birds flying in the radar beam.
Industry:Aviation
An elastic cord made of a series of small strips of rubber or rubber bands. These strips or bands are encased in a braided cloth cover that holds and protects the rubber, yet allows the rubber to stretch. Bungee cords are used in some of the simpler aircraft landing gears to absorb shock, and the energy in a stretched bungee cord may be used to crank a large aircraft reciprocating engine.
Industry:Aviation
An elastomeric material made from silicone elastomers. Silicone rubber is compatible with fluids which attack other natural or synthetic rubbers.
Industry:Aviation
An electric arc produced when current flows through ionized air from the tip of one carbon rod to the tip of another. The intense heat produced by the passage of the current causes the tips of the carbon rods to vaporize and glow with a brilliant white light.
Industry:Aviation
An electric furnace in which the metal to be melted is heated by the induction of high-frequency electromagnetic energy.
Industry:Aviation
