In dictionaries:
Boeing Vertol CH-46 Sea Knight
an American medium-lift tandem-rotor transport helicopter powered by twin turboshaft engines.
Boeing Vertol XCH-62
The (Model 301) a triple-turbine, heavy-lift helicopter project designed for the United States Army by Boeing Vertol.
Boeing Vertol YUH-61
The (company designation Model 179) a twin turbine-engined, medium-lift, military assault/utility helicopter.
more...