Watch Why the CH-47 Chinook Is the King of Heavy-Lift Helicopters on Interesting Engineering. Explore the latest in ...

The CH-47 Chinook is regarded by many as the world's most iconic helicopter. Dating all the way back to the Vietnam War, the unique tandem rotor design and engines allow this aircraft to fly with ...

Originally fielded in the Vietnam War, the CH-47 has undergone a series up upgrades ... which remains the U.S. Army standard and features composite rotor blades, an improved electrical system ...