Tandem-rotor heavy-lift helicopter family
The Chinook's tandem-rotor layout created a durable heavy-lift helicopter family.
The CH-47 Chinook was developed from Vertol tandem-rotor transport concepts and became one of the most enduring heavy-lift helicopters in military service. Its tandem rotors avoid the need for a tail rotor and provide useful lift, stability, and a large rear loading area. Continuous modernization by Boeing has kept the family relevant through several generations of engines, avionics, and structural upgrades.


