Sikorsky X2
Videos
The Sikorsky X2 is an experimental high-speed compound helicopter with coaxial rotors, developed by Sikorsky Aircraft, that made its first flight in 2008 and was officially retired in 2011.
Sikorsky X2 Demonstrator
Sikorsky S-97 Raider
Videos
The Sikorsky S-97 Raider is a high-speed scout and attack compound helicopter based on the Advancing Blade Concept with a coaxial rotor system under development by Sikorsky Aircraft. Sikorsky planned
Sikorsky X2
…since patented a "Standpipe" (fixed tube between rotating rotor axes) suitable for a central hub fairing. On 4 May 2009, Sikorsky unveiled a mockup of a Light Tactical Helicopter derivative of the X2, and unveiled a prototype in October 2014. In June 2014, Sikorsky/Boeing submitted the SB-1 Defiant helicopter design for the Future Vertical Lift…
S-97 Raider in flight
Mockup in October 2011