Sikorsky-Boeing SB>1 DEFIANT Helicopter Takes First Flight

The Sikorsky-Boeing SB>1 DEFIANT helicopter completed its first flight on Thursday at Sikorsky’s West Palm Beach, Fla., site.

The aircraft, developed by Sikorsky, a Lockheed Martin Company, and Boeing, will help inform the next generation of military helicopters as part of the U.S. Army’s Future Vertical Lift program.

“The design and development of DEFIANT has revealed the capability advancement that is truly possible for Future Vertical Lift,” said David Koopersmith, vice president and general manager, Boeing Vertical Lift. “Clearly, the performance, speed and agility of DEFIANT will be a game changer on the battlefield and we look forward to demonstrating for the U.S. Army the tremendous capabilities of this aircraft.”

With its two coaxial main rotors and a rear mounted pusher propulsor, DEFIANT is unlike production rotorcraft available today.

“DEFIANT is designed to fly at nearly twice the speed and has twice the range of conventional helicopters while retaining the very best, if not better, low-speed and hover performance of conventional helicopters,” said Dan Spoor, vice president, Sikorsky Future Vertical Lift. “This design provides for exceptional performance in the objective area, where potential enemy activity places a premium on maneuverability, survivability and flexibility. We are thrilled with the results of this flight and look forward to an exciting flight test program.”

The helicopter is participating in the Army's Joint Multi-Role-Medium Technology Demonstrator program. Data from DEFIANT will help the Army develop requirements for new utility helicopters expected to enter service in the early 2030s.

This first flight marks a key milestone for the Sikorsky-Boeing team and is the culmination of significant design, simulation and test activity to further demonstrate the capability of the X2 Technology.

X2 Technology is scalable to a variety of military missions such as attack and assault, long-range transportation, infiltration and resupply. DEFIANT is the third X2 aircraft in less than 10 years.

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