The CH-47 Chinook helicopter (Chinook) is a multi-functional, twin-engine, dual-purpose helicopter developed and manufactured by the American Boeing Company. Propeller medium transport helicopter. Its dual-rotor tandem structure (contra-rotating rotors) eliminates the vertical tail propeller of ordinary helicopters, allowing the body to rise and fall vertically, and can reach speeds of up to 165 miles per hour. Its primary tasks range from troop transport to battery battlefield supplies. The CH-47 has been exported to 16 countries, with the largest consumers being the US military and the British Royal Air Force. The Chinook can carry Gatling guns and can also transport military vehicles and tanks.