Longman Dictionary of Contemporary English
air brakes
noun
EXAMPLES FROM CORPUS
▪ Barring a handful for specialist duties, every locomotive was equipped with air brakes.
▪ However he never considered fitting air brakes to the tractor.
▪ The new vehicles built as replacements during the 1980s were generally of higher capacity, privately owned and fitted with air brakes.
▪ The silence was broken occasionally by a muffled gasp or a quivering sigh that was more like the hiss of air brakes.
Wiktionary
air brakes
n. (air brake English)
Usage examples of "air brakes".
The engines throttled back and I felt the plane check as Saeton applied the air brakes.
The next thing he was aware of was the hissing of air brakes as the driver drew to a stop.
He froze as he heard the sound of the air brakes and felt the truck slow.
She had to raise her voice to be heard over the sound of the revving engine and the gasping release of the air brakes.
Winced as a bus released its air brakes with a sound like a dying pig.