服役時飛行速度最快，外銷至全球16個國家，多功能、雙引擎、雙旋翼中型運輸直升機，CH-47「契努克」直昇機（CH-47 Chinook）

CH-47「契努克」直昇機（英語：CH-47 Chinook）是由美國波音公司製造的一款多功能、雙引擎，雙旋翼的中型運輸直升機，得名於美洲原住民契努克族。該機種的主要任務是部隊運輸、火炮調遣與戰場補給；其雙旋翼縱列式結構（contra-rotating rotors）免除了一般直升機需要的尾部垂直旋翼。CH-47在1960年代開始服役時，是飛行速度最快的直升機。目前，CH-47已被外銷至全球16個國家。
The Boeing CH-47 Chinook is a tandem rotor helicopter developed by American rotorcraft company Vertol and manufactured by Boeing Vertol. The Chinook is a heavy-lift helicopter that is among the heaviest lifting Western helicopters. Its name, Chinook, is from the Native American Chinook people of Oregon and Washington state.The military version of the helicopter has been exported to nations across the world; the U.S. Army and the Royal Air Force (see Boeing Chinook (UK variants)) have been its two largest users. The civilian version of the Chinook is the Boeing Vertol 234. It has been used by civil operators not only for passenger and cargo transport, but also for aerial firefighting and to support logging, construction, and oil extraction industries.