- 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 butterfly-type valve in an air duct. This valve is a round plate mounted on a shaft sticking through the duct. When the damper is open, it is parallel with the duct, and the air flows around it. When it is closed, the valve plate is almost perpendicular to the duct, and no air can flow past it.
Industry:Aviation
A cable used to carry power from a launch pad to a rocket or spacecraft being readied for flight. The umbilical cord is disconnected before the vehicle leaves the pad. An umbilical cord is also used to tether and to supply oxygen to an astronaut when operating outside a spacecraft in space.
Industry:Aviation
A cadmium-mercury cell made in a specially shaped glass container in which the two electrodes are covered with an electrolyte of cadmium sulfate. The voltage produced by a standard cell is 1.018636 volts at 20°C. A standard cell is also called a Weston standard cell or a Weston normal cell.
Industry:Aviation
A calculated time of aircraft arrival over the adapted vertex for the runway configuration in use. Vertex arrival time is calculated via the optimum flight path using adapted speed segments.
Industry:Aviation
A calculated time to depart the meter fix in order to cross the vertex at the actual calculated landing time (ACLT). This time reflects descent speed adjustment and any applicable time that must be absorbed prior to crossing the meter fix.
Industry:Aviation
A calculated time to depart the outer fix in order to cross the vertex at the actual calculated landing time (ACLT). The time reflects descent speed adjustments and any applicable delay time that must be absorbed prior to crossing the meter fix.
Industry:Aviation
A calibrated orifice, or hole, used in some fluid power systems to allow a controlled flow of fluid while the system is in operation. When the system is shut down, all of the pressure bleeds off through the bleed orifice.
Industry:Aviation
A cam in the engine control system of a turbine-engine-powered helicopter that coordinates the engine power with the position of the collective-pitch control stick.
Industry:Aviation
A cam in the shock strut that causes the wheel of a retractable nose gear to straighten fore-and-aft when the strut is fully extended. When the aircraft takes off and the strut extends, the wheel straightens so it can be retracted into the wheel well.
Industry:Aviation
A cam on the shock strut of a retractable nose gear that aligns the wheel when there is no weight on the landing gear, so it will fit into the nose wheel well.
Industry:Aviation
