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 hard, glass-like coating that forms on the brake disc surface. The friction caused by the glazed surface is not uniform, and when the brakes are applied, they grab and release at such a high rate ...

Tantalum

Aviation; Aeronautics

A hard, gray, or steel-blue metallic chemical element. Tantalum's symbol is Ta, its atomic number is 73, and its atomic weight is 180.948. Tantalum is used in the manufacture of light bulb filaments, ...

Cobalt

Aviation; Aeronautics

A hard, brittle, metallic chemical element. Cobalt's symbol is Co, its atomic number is 27, and its atomic weight is 58.93. Cobalt is used as an alloying element in permanent magnets.

Field effect transistor (FET)

Aviation; Aeronautics

A high-impedance semiconductor device in which the flow of load current between the source and drain is controlled by variations in voltage on the gate, rather than current, as is done with a bipolar ...

Junction field effect transistor (JFET)

Aviation; Aeronautics

A high-impedance semiconductor device that controls the flow of electrons between its source and drain by a voltage placed on its gate. The function of a JFET is similar to that of a bipolar ...

Crucible steel

Aviation; Aeronautics

A high grade of steel produced by melting scraps of iron and steel in a graphite crucible and adding the correct amounts of alloying elements and fluxes. The metal is boiled to remove the volatile ...

Standard-frequency signal

Aviation; Aeronautics

A highly accurate radio-frequency signal broadcast from the National Bureau of Standards radio station, station WWV. The standard-frequency signal is broadcast on frequencies of 2.5, 5.0, 10.0, 15.0, ...