- 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 ...
Rings of hardened steel or bronze shrunk into the soft cast-aluminum cylinder head of an aircraft reciprocating engine. The wear caused by the continual hammering of the valves as they close is absorbed by the valve seat, rather than allowing the hammering to ruin the cylinder head.
Valve seats are ground with a special seat grinder so that they are perfectly concentric with the valve guide. Worn valve seats can be removed from the cylinder head and replaced with new seats.
Industry:Aviation
Rocket fuel made of a mixture of solid materials that, when ignited, combine fast enough to produce a great amount of heat. Solid fuel, which contains all the oxygen needed for the reaction, is molded into a shape that causes it to burn at the correct rate.
Industry:Aviation
Rotating about the same axis. Coaxial rotors of a helicopter are mounted on concentric shafts in such a way that they turn in opposite directions to cancel torque.
Industry:Aviation
Rotating inlet guide vanes installed on the center of a centrifugal compressor to pick up the inlet air and direct it at the correct angle into the impeller blades.
Industry:Aviation
Rotation of an object in the same direction the hands of a clock move.
Industry:Aviation
Roughness caused by the surface of a finishing material drying before the material below the surface. The rough surface may be caused by using the wrong viscosity finishing material, the wrong amount of air pressure on the spray gun, or incorrect setting of the spray gun controls. It can also be caused by holding the spray gun an incorrect distance from the surface being sprayed.
Industry:Aviation
Routes established between busier airports to increase system efficiency and capacity. Preferred IFR routes normally extend through one or more ARTCC areas and are designed to achieve balanced traffic flows among high density terminals. IFR clearances are issued on the basis of these routes except when severe weather avoidance procedures or other factors dictate otherwise. Preferred IFR routes are listed in the Airport/Facility Directory.
If a flight is planned to or from an area having such routes but the departure or arrival point is not listed in the A/FD, pilots may use that part of the preferred IFR route which is appropriate for the departure or arrival point that is listed. Preferred IFR routes are correlated with SIDs and STARs and may be defined by airways, jet routes, direct routes between navaids, waypoints, navaid radials/DME, or any combination of these items.
Industry:Aviation
