Aviation

Aviation

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

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Aviation > Aeronautics

shear pin

Aviation; Aeronautics

A pin used to protect a piece of equipment by intentionally shearing if the equipment should seize. A shear pin is used in the drive shaft of some engine-driven pumps. If the pump ...

spout

Aviation; Aeronautics

A pipe or similar device used to carry a liquid from a container in a stream that is easy to control.

standpipe

Aviation; Aeronautics

A pipe protruding upward from the bottom of a tank, or reservoir, that allows part of the tank to be used as a reserve, or standby, source of fluid. The oil supply tanks for some ...

rocker arm

Aviation; Aeronautics

A pivoted arm on the cylinder head of a reciprocating engine. The pushrod forces one end of the rocker arm up, and as the other end moves down, it forces the intake or exhaust ...

whiffletree

Aviation; Aeronautics

A pivoted beam used in an aircraft control system to allow more than one force to act on a common point. For example, two pulling forces may be applied to the ends of a ...

rhomboid

Aviation; Aeronautics

A plain, four-sided, closed figure in which the opposite sides are parallel, and the adjacent sides have different lengths. None of the angles in a rhomboid are right angles (90° ...