The Sikorsky S-67 was a prototype attack helicopter. This high-performance helicopter was the first to carry the Blackhawk name.
Attack and Support Missions
For the Vietnam War, the US Army needed a helicopter with heavily armed and armored attack systems which could defeat Soviet armor, has excellent speed and crew protection. The S-67 established this purpose.
New Development and Design Specs
The development of a new prototype began in February 1970 and was completed seven months later. One of its main features is its slender fuselage with a two-person cockpit only 3 feet, 10 inches wide.
The purpose of the design was to boost the helicopter’s speed potential. It also used high-speed sweptback blade tips that flow to speeds of Mach 0.9 without affecting its performance.
The aircraft was extremely maneuverable and responsive, and pilots loved it. Loops, rolls, and split-S maneuvers can be made with no issues.
In 1972, the army evaluated the S-67 as an alternative for the new attack chopper they had in mind. Sikorsky proposed a production configuration of the Blackhawk. The company added new additions to the Blackhawk.
Some updates included heads-up displays, updated navigation systems, night vision, a low light TV, and a new turret system.
An S-67 prototype was shipped to England in 1974, set to fly at the Farnborough Airshow. However, during the press preview flight, the plane hit the ground during a right-hand low-level roll maneuver.
The co-pilot died during the crash, while the pilot passed away from his injuries nine days later. The prototype was wrecked. The entire program was then terminated after the incident.