- Settore: 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 type of mechanical wave in which the material being vibrated moves in a direction perpendicular to the direction the wave is moving. Transverse waves are formed when a rock is thrown into a pond of water. The surface of the water moves up and down as the wave moves across the pond.
Industry:Aviation
A type of metal defect produced in the rolling mill. Ridges or bulges on the surface of the metal are folded over and forced down into the metal as it is being rolled. Laps decrease the strength of the metal.
Industry:Aviation
A type of metal-turning lathe in which the cutting tools are mounted in a turret. For example, a drill, a boring tool, and a chamfering tool can be mounted in the turret. The drill is moved into the work to drill the hole. The drill is then backed out, the turret is rotated to put the boring tool in place, and the hole is counterbored. The boring tool is then backed out and the chamfering tool is rotated into place. The chamfering tool is moved into the work to chamfer the edges of the counterbored hole.
Industry:Aviation
A type of metalworking machine tool. The work to be machined is fastened to a movable table, and the table moves to feed the work into a rotating tool called a milling cutter.
Industry:Aviation
A type of microphone in which sound pressure vibrates a cone on which is mounted a coil of wire. The coil vibrates in a magnetic field, and a voltage is produced in the coil. The frequency and waveform of the voltage is similar to that of the sound waves that vibrated the cone.
Industry:Aviation
A type of microphone used by a person operating in an extremely noisy area such as the cockpit of an airplane. The throat microphone is strapped around the person’s neck so the sensitive pickup rests over the larynx (the part of the throat containing the vocal cords). When the person wearing the microphone talks, vibrations of the larynx vibrate the microphone and produce an electrical signal that can be changed into sound.
Industry:Aviation
A type of microphone used in a telephone and with some types of radio transmitters. The sensitive element in a carbon microphone is a tube of carbon granules, or grains of carbon. A flexible diaphragm acted on by sound waves presses against the carbon inside the tube.
When the diaphragm pushes the carbon granules together (compresses them), the resistance of the carbon becomes less than when the diaphragm allows the granules to relax.
The looseness or tightness of the granules in the tube determines the resistance of the carbon, and this resistance changes in the same way the air pressure caused by the sound waves changes.
Industry:Aviation
A type of mineral oil to which metallic-ash-forming detergents have been added. Detergent oil is not generally used in aircraft engines because of its tendency to loosen carbon deposits from the engine parts. These loosened deposits can plug oil passages inside the engine.
Industry:Aviation
A type of mixture control used in some float carburetors that regulates the fuel-air mixture ratio by varying the pressure of the air above the fuel in the float bowl.
Industry:Aviation
A type of molded metal in which powdered metal is pressed together and molded into the desired shape while it is cold. Then the molded metal is heated to form it into a strong cohesive material.
Industry:Aviation
