Cool Helicopter
Sikorsky Aircraft Corporation’s X2 TECHNOLOGY Demonstrator has successfully completed its first flight.
In a first test flight yesterday that lasted approximately 30 minutes, the prototype counter-rotating coaxial-rotor helicopter maneuvered through hover, forward flight, and a hover turn.
….The flight represented the culmination of more than four years of design, development and testing of the X2 TECHNOLOGY Demonstrator’s suite of technologies, intended by Sikorsky to advance the state of the art for counter-rotating coaxial-rotor helicopters. ….
http://www.aviation.com/technology/080828-sikorsky-X2-demonstrator-flies.html
