The Sikorsky-Boeing SB>1 Defiant helicopter successfully completed its first flight as part of the U.S. Army's Future Vertical Lift program. It is designed to achieve nearly twice the speed and range ...
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Why US Army scrapped its fastest helicopter ever
The SB-1 Defiant pushed helicopter design beyond 200 knots with its coaxial rotor and pusher propeller system, redefining what vertical lift could achieve. Despite its performance, the U.S. Army ...
China appears to be embarking upon an ambitious, long-term plan to keep pace with U.S. advances in helicopter technology by emphasizing speed; stealth; and innovative, next-generation designs. The ...
Newly emerged images raise the possibility that China has built another compound helicopter demonstrator, following the S-97 Raider-like aircraft seen in 2025, this time bearing a resemblance to the ...
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