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 gas-filled diode electron tube used in a high energy capacitor-discharge ignition system for a turbine engine. The discharge tube blocks all electron flow until the voltage across its electrodes ...

regulator tube

Aviation; Aeronautics

A gas-filled, glow-discharge electron tube. A regulator tube is installed in parallel with the load across the output of a DC power supply. The regulator tube maintains a constant voltage across its ...

Jet-B fuel

Aviation; Aeronautics

A gasoline-type fuel used in most military jet-propelled aircraft. Jet-B fuel has a flash point of 0°F and a freezing point of –76°F. Jet-B fuel is similar to the military JP-4 fuel.

reduction gear train

Aviation; Aeronautics

A gear arrangement in which the output shaft turns more slowly than the input shaft. A reduction gear train is used to increase the torque produced by a motor. Reed and Prince screw. A form of ...

idler gear

Aviation; Aeronautics

A gear used to reverse the direction of rotation of another gear without changing its speed of rotation. An idler gear does not add nor take away mechanical advantage from the gear train.

spur gear

Aviation; Aeronautics

A gear wheel with teeth radiating outward around its periphery. The term spur gear comes from the fact that this type of gear looks much like the rowel, or toothed wheel, that was a part of the spur ...

herringbone gear

Aviation; Aeronautics

A gear whose teeth are cut across its face in the shape of a V. A herringbone gear is similar to two helical gears whose teeth run in opposite directions, mounted side-by-side on the shaft.