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 three-phase alternating current circuit in which one end of each of the three windings of a three-phase generator or transformer is connected to form a common point. In a Y-connected circuit, two ...

union

Aviation; Aeronautics

A three-piece threaded pipe fitting used to join two pipes or to connect a pipe to a component. A union allows the pipes to be connected without either of the pipes having to be turned.

unijunction transistor (UJT)

Aviation; Aeronautics

A three-terminal semiconductor device. A pulse of energy on one terminal controls the flow of electrons between its other two terminals. When a pulse of electrical energy of the correct polarity is ...

duct heater

Aviation; Aeronautics

A thrust augmentation system similar to an afterburner in which fuel is added to the fan discharge air and burned.

clamshell thrust reverser

Aviation; Aeronautics

A thrust reverser that fits in the exhaust system of a turbojet engine. In normal operation, the clamshell doors form a part of the tail pipe, but when the reverser is deployed, the doors move into ...

battery bus

Aviation; Aeronautics

A tie point in an aircraft electrical system to which the battery is connected. Electrical loads connected to the battery bus get their power from the bus.

drive fit

Aviation; Aeronautics

A tight fit between mating parts of a mechanism in which one part fits inside another. In a drive fit, the hole is smaller than the part that fits into it, and force must be used to assemble the ...