Sikorsky-Boeing SB-1 Defiant Shows Speed Chops, Exceeds 200 Kt.

The Sikorsky-Boeing SB-1 Defiant advanced rotorcraft demonstrator has reached 205 kt. in flight testing.
Credit: Sikorsky-Boeing
The Sikorsky-Boeing team expects to reach its speed target for the SB-1 Defiant coaxial-rotor compound helicopter within the next few months after exceeding 200 kt. for the first time in flight testing at West Palm Beach, Florida. The aircraft achieved 205 kt. on a June 9 test flight, with the tail...
Graham Warwick

Graham leads Aviation Week's coverage of technology, focusing on engineering and technology across the aerospace industry, with a special focus on identifying technologies of strategic importance to aviation, aerospace and defense.

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