SB>1 Defiant Breaks Cover | Aviation International News

SB>1 Defiant Breaks Cover

The Sikorsky-Boeing team developing the Defiant tactical/utility transport compound helicopter demonstrator has unveiled the prototype

The SB>1 Defiant employs a rigid coaxial main rotor with an eight-bladed pusher propeller. (photo: Sikorsky)

By David Donald • Contributor - UK

December 28, 2018

Sikorsky and Boeing have released the first images of the jointly developed SB>1 Defiant as the compound helicopter nears its first flight. Registered N100FV, the SB>1 (also given the Sikorsky in-house model number S-100) has been assembled at Sikorsky’s facility at West Palm Beach, Florida.

The two companies joined forces in January 2013 to offer a bid for the U.S. Army’s Joint Multi-Role Technology Demonstrator (JMR-TD) program, which is intended to provide data that will inform the development and specifications for the U.S. Army Future Vertical Lift requirement that will, in turn, create a new generation of medium utility helicopters for service from the 2030s with double the speed of today’s rotorcraft and a significant range increase.

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