Definitions for "Air brake"
A railway brake powered by compressed air.
A system of braking mechanism operated by compressed air.
Vehicle power braking system operated by compressed air. Engine-driven compressor delivers air under pressure to storage tank or reservoir; foot-pedal valve controls delivery of air pressure through lines to chambers at each wheel to actuate either a cam or a wedge which forces shoes against drum. Air pressure is then exhausted from chambers, permitting return springs to retract shoes.
Keywords:  steepen, aeroplane, glide, drag, flap
A device, usually in the form of a flap, designed to increase the drag of an aeroplane at will. Used to steepen the glide, shorten the approach and reduce the landing run.