Article
Sikorsky-Boeing’s FVL contender takes flight
2019-03-25
The Sikorsky-Boeing SB-1 Defiant (stylized as “SB>1 DEFIANT”) compound helicopter flew for the first time at Sikorsky’s West Palm Beach, Florida facility. Unlike current rotorcraft, the SB-1 Defiant’s propulsion system includes a rear-mounted pusher propulsor in addition to two coaxial main rotors. This unique setup allows the Defiant to reach speeds and a service range far beyond that of modern helicopters.