This helicopter has dual-crossing rotors for increased precision The K-MAX uses a unique double rotor system where the two rotors cross each other. Kaman Aerospace calls these "intermeshing rotors." ...

The Chinook features two T55s, one mounted on each side of the helicopters’ rear pylon and connected to the rotors by drive shafts. The Chinook’s two rotors each feature three-blades and ...

For many, the Sikorsky UH-60 Black Hawk helicopter, like the one involved in the Wednesday collision over the Potomac River ...

The Army has no plans to retire the CH-47 Chinook—which, in multiple respects, outdoes every other helicopter in the U.S. military’s fleet.

The K-MAX uses a unique double rotor system where the two rotors cross each other ... They give the K-MAX more control than a conventional helicopter. The K-MAX is the world's first helicopter ...