air brake

listen to the pronunciation of air brake
English - English
This is the most common type of train brake It was used on both the South Australian and Commonwealth Railways
A braking system in which compressed air is used as the operating medium
A braking system in which the brakes are held off by compressed air acting on a piston and are applied by the controlled release of pressure
Air brakes are brakes which are used on heavy vehicles such as buses and trains and which are operated by means of compressed air. Either of two kinds of braking systems. The first, used by trains, trucks, and buses, operates by a piston driven by compressed air from reservoirs connected to brake cylinders (see piston and cylinder). When air pressure in the brake pipe is reduced, air is automatically admitted into the brake cylinder. The first practical air brake for railroads was invented in the 1860s by George Westinghouse. The second type, used by aircraft and race cars, consists of a flap or surface that can be mechanically projected into the airstream to increase the resistance of the vehicle to air and lower its speed
brake operated by compressed air; surface projected into an airstream for reducing the speed of an airplane
A railway brake operated by condensed air
air brakes
plural form of air brake
airbrake
A brake (slowing device) that is operated pneumatically (by air pressure)

The powerful airbrake of the truck quickly brought it to a stop.

air brakes
brakes that work using air pressure
airbrake
a vehicular brake that operates by compressed air; especially for heavy vehicles
airbrake
A moving part of an aircraft wing to reduce lift and airspeed
airbrake
a vehicular brake that operates by compressed air; especially for heavy vehicles a small parachute or articulated flap to reduce the speed of an aircraft
airbrake
a small parachute or articulated flap to reduce the speed of an aircraft
air brake
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