It had twin propellers and was powered by a compressed-air engine.

This has been done by equipping the scooter with a compressed-air engine and air tank.

The compressed-air engine is used to activate an alternator, which extends the autonomous operating capacity of the car.

In 1872, Gern presented a 6-ton torpedo, powered by a compressed-air engine, but tests showed only modest results.

Historically certain torpedoes were propelled by compressed-air engines.

The submarine used a compressed-air engine, propelled by stored compressed air powering a reciprocating engine.

French engineer Guy Negre has developed a compressed-air engine, which has attracted interest from India's Tata Motors Ltd, but the technology is still in its early stages.

Engineers from this company made, starting from a Daewoo Matiz, a prototype of a hybrid electric/compressed-air engine (Pne-PHEV, pneumatic plug-in hybrid electric vehicle).

Guy Negre, a motor engineer and founder of MDI Enterprises, a company that studies new technologies and production concepts to reduce the environmental impact of carbon dioxide, invented a compressed-air engine in 1996.

A compressed-air powered motorcycle, called the Green Speed Air Powered Motorcycle was made by Edwin Yi Yuan, based on the Suzuki GP100 and using the Angelo Di Pietro compressed-air engine.