- 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 ...
A reverse-current relay installed with a high-current aircraft generator. The reverse-current relay closes to connect the generator to the battery when the generator voltage is a specified amount higher than the voltage of the battery.
Reverse-current relays used with smaller generators connect the generator to the battery when the generator produces a specific voltage, regardless of the voltage of the battery.
Industry:Aviation
A reversible DC electric motor that has two separate field windings; one for clockwise rotation and the other for counterclockwise rotation.
Industry:Aviation
A ridge around a rotating shaft on the engine side of an oil seal.
The slinger throws much of the oil away from the shaft, back into the engine crankcase, before it reaches the oil seal.
Industry:Aviation
A ridge that protrudes from a device and is used for attaching something to the device, or for connecting two objects together. The propeller shaft of most modern aircraft engines is fitted with a flange on which the propeller mounts.
The end of the propeller shaft is formed into a flat plate (the flange) whose face is perpendicular the propeller shaft. The propeller is held on this flange with high-strength steel bolts.
Industry:Aviation
A rigid bar, free to pivot, or rotate about a point called the fulcrum with an input force applied to one point, and an output force taken from another point. The lever, one of the simple machines like the wheel, screw, and inclined plane, can be used to change a force or the speed of movement.
The action of a lever is determined by the placement of the fulcrum and by the distance between the fulcrum and the points the force is put into and taken from the lever.
Industry:Aviation
A rigid rod normally made of aluminum alloy tubing used to actuate flight controls from the cockpit. Control rods are often called push-pull rods because of the method of their actuation.
Industry:Aviation
A ring or groove cut around the outside of a circular body or shaft. An annulus gets its name from its resemblance to the circular shape of the annual rings (the growth rings) which form in the trunk of a tree.
Industry:Aviation
A ring or plate with lobes ground around its periphery. Cam rings are used in radial aircraft engines to push against cam followers and push rods to open the intake and exhaust valves.
Industry:Aviation
A ring, or round flange, made as a part of a shaft or installed on it to either restrain movement or hold something in place.
Industry:Aviation
A ring, usually installed on some strong part of the landing gear of an aircraft, to which a tow bar or cable can be attached to move the aircraft on the ground.
Industry:Aviation
