The Chinook's primary roles are troop movement, artillery placement and battlefield resupply. With a top speed of 170 knots (196 mph, 315 km/h) the helicopter is still one of the fastest helicopters in the US inventory. The Chinook was designed and initially produced by Boeing Vertol in the early 1960s; it is now produced by Boeing Rotorcraft Systems. There have been many versions including the CH-47F and CH-47G, which are currently in service today.

CH-47 Variants
Model CH-47A CH-47B CH-47C CH-47D CH-47F MH-47G
Year First Produced 1962 1965 1967 1979 2006 2003
Shaft HP 2,200/2,650 2,850 2,850/3,750 4,868 4,868 4,868
Payload 10,000 lbs Unkown 15,000 1bs 20,000 1bs 22,000 lbs 26,000 lbs