World's fastest helicopter took off - Sikorsky / Boeing SB-1 Defiant
Sikorsky Aircraft and Boeing are jointly producing a medium-lift-sized demonstrator they named SB-1 Defiant (also widely known as "SB-1") for phase one of the program. Originally planned to fly in late 2017.
its first flight was delayed in April 2017 to early 2018. Once flight testing begins, the aircraft will be evaluated by the Army for further development. Sikorsky is leading the development of phase one with an aircraft based on their previous Sikorsky X2 design.
Boeing plans to lead phase two, which is the mission systems demonstrator phase. The Boeing-Sikorsky team is seen to have an advantage with their large industrial base that may result in wider support from Congress.
