Aeronautics

Aeronautics

The branch of science that deals with flight aerodynamics and with the operation of all types of aircraft.

Contributors in Aeronautics

Aeronautics

A hydraulic device in the valve train of certain aircraft reciprocating engines. When the cam follower is on top of a cam lobe, the intake or exhaust valve is held open by a cushion of oil inside the ...

exerciser jack

Aviation; Aeronautics

A hydraulic jack placed under the landing gear shock absorber while it is being filled with oil. The jack moves the piston in and out of the shock absorber cylinder while it is being filled, to work ...

closed-center hydraulic system

Aviation; Aeronautics

A hydraulic system in which the selector valves are installed in parallel with each other. When no unit is being actuated, fluid circulates from the pump back to the reservoir without flowing through ...

brake caliper

Aviation; Aeronautics

A hydraulically operated clamp that holds the brake linings on either side of a brake disk. When the brakes are applied, the calipers squeeze the linings tight against the disk to produce the ...

halogenated hydrocarbon

Aviation; Aeronautics

A hydrocarbon compound in which one or more of the hydrogen atoms have been replaced with an atom of one of the halogen elements, such as fluorine, chlorine, or bromine.

cracked gasoline

Aviation; Aeronautics

A hydrocarbon fuel (gasoline) manufactured by heating crude petroleum products under pressure, usually in the presence of a catalyst. The heavier hydrocarbons in the crude oil are broken down by the ...

diesel fuel

Aviation; Aeronautics

A hydrocarbon fuel used in a compression-ignition engine. Diesel fuel, obtained by fractional distillation of crude oil, is the fraction that distills off just after kerosine.