Aviation

Aviation

Dealing with vehicles or machines used in flight or propulsion through the air.

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Aviation > Aeronautics

pressure-injection carburetor

Aviation; Aeronautics

A multibarrel pressure carburetor used on large radial and V-engines. The fuel is metered on the basis of the mass of the air flowing into the engine and is sprayed under pressure ...

dado head

Aviation; Aeronautics

A multibladed circular saw having two blades mounted on an arbor with a chipper between them. A dado head is used to cut a flat-bottomed groove in wood.

wafer-type selector switch

Aviation; Aeronautics

A multicontact switch with the contacts arranged around the outside of a circular wafer. A shaft through the center of the wafer is rotated by a knob to connect a center contact, ...

triple thread

Aviation; Aeronautics

A multiple screw thread in which three threads are cut parallel to each other. The starting point of each thread is 120° from the starting point of the others. The lead, or the ...

selector switch

Aviation; Aeronautics

A multi-pole switch used to connect a single conductor to any one of several other conductors.

helical potentiometer

Aviation; Aeronautics

A multi-turn potentiometer, or variable resistor. The resistance element is made in the form of a spiral, or helix, and the wiper is moved over the element by turning a multi-turn ...

sal ammoniac

Aviation; Aeronautics

A name commonly used for ammonium chloride. Ammonium chloride is one of the components of the moist-paste electrolyte used in carbon-zinc flashlight batteries.