The SB>1 continues its flight test campaign. This shot provides a good view of the rear of the platform, showing its eight bladed 'pusher propeller' and twin-engine exhausts. The FLRAA is the replacement for the UH-60 Black Hawk utility helicopter; likely competitors include those based on the Bell V-280 Valor tiltrotor (flying since 2017) and the Sikorsky Boeing SB-1 Defiant coaxial rotor compound helicopter.
Sikorsky, and its partner Boeing, are proving the scalability and tailoring of Sikorsky's X2 technology with the SB1 Defiant medium-class technology demonstrator. The SB1 is being developed for the US Army's Joint Multi-Role Technology Demonstration programme to help define the Future Vertical Lift (FVL) programme. Technologies used on GE’s FATE engine will be available if a new centre-line engine is required for FVL.
The Sikorsky-Boeing team is developing assault and attack variants of the SB1 Defiant medium-lift helicopter for the US Army's Joint Multi-Role Technology Demonstration programme to help define the Future Vertical Lift programme. Technologies used on GE's FATE engine will be available if a new centre-line engine is required for FVL.