Sikorsky S-67 Blackhawk
Prototype attack helicopter
Sikorsky S-67 Blackhawk
The Sikorsky S-67 Blackhawk was a private-venture, prototype attack helicopter built in 1970 with Sikorsky Aircraft research and development (R&D) funds. A tandem, two-seat aircraft designed around the dynamic drive and rotor systems of the Sikorsky S-61, it was designed to serve as an attack helicopter or to transport up to eight troops into combat.
Read on Wikipedia · Image U.S. Army, Public domain
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