The Boeing CH-47 Chinook traces its origins to the late 1950s, when the U.S. Army sought a more capable heavy-lift helicopter to replace piston-engine transports. Building on the earlier CH-46 design, Boeing Vertol developed a larger, turbine-powered tandem-rotor aircraft designated YCH-1B. Its twin Lycoming T55 engines delivered greater speed, lift capacity, and reliability compared to earlier models. The prototype first flew in 1961, demonstrating impressive payload performance and stability. Renamed CH-47 Chinook in 1962, it entered service soon after. Its rapid development and innovative tandem-rotor configuration set a new standard for battlefield airlift capability.
The Boeing CH-47 Chinook can carry up to 33 fully equipped troops or around 24 litters for medical evacuation. It lifts more than 10,000 kg externally via sling load and about 10,000–12,000 kg internally, depending on variant, making it one of the most capable heavy-lift helicopters in service worldwide today.
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| CH-47 Chinook Cutaway |
