Aviation

Aviation

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

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Aviation > Aeronautics

astrocompass

Aviation; Aeronautics

A navigational instrument that determines direction relative to the stars. Astrocompasses are not affected by the errors inherent in magnetic compasses and gyrocompasses.

drift sight

Aviation; Aeronautics

A navigational instrument used in an aircraft when it is being navigated by dead reckoning. The drift sight measures the angle between the direction the aircraft is pointed and ...

shear section

Aviation; Aeronautics

A necked-down section of an engine-driven pump shaft designed to shear if the pump should seize. When the shear section breaks, the drive can continue to turn without causing ...

anion

Aviation; Aeronautics

A negative ion that moves toward the anode (the positive electrode) in the process of electrolysis.

attenuator

Aviation; Aeronautics

A network of resistors used to decrease the amplitude of an electrical signal without causing any phase shift or frequency distortion.

chugging

Aviation; Aeronautics

A noise heard in a gas turbine engine caused by unstable airflow in the engine. The chugging noise is produced by a mild compressor stall.

jet silencer

Aviation; Aeronautics

A noise suppressor used with a gas turbine engine. A jet silencer does not actually silence a jet engine; rather, it converts some of the low-frequency vibrations into higher ...