Before the Blackhawk became a legendary transport, Sikorsky created the S-67—a sleek, high-speed prototype built for attack missions. Armed, agile, and years ahead of its time, the S-67 was a ...

Sikorsky’s S-67 Blackhawk seemed well suited for the job, as was Bell’s King Cobra, but both ultimately lost out to the Hughes Helicopter YAH-64A — the aircraft that would go on to become ...