Sikorsky’s X2 Retires As SB-1 Comes Together

Credit: Sikorsky
The Sikorsky X2 technology demonstrator that spawned the S-97 Raider and SB-1 Defiant and is the basis for the company’s Future Vertical Lift (FVL) pursuits has been retired to the Udvar-Hazy National Air and Space Museum in Chantilly, Virginia, eight years after the counter-rotating coaxial rotor...

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