Sikorsky has begun final assembly of its second S-97 Raider prototype compound helicopter. Sikorsky is campaigning the S-97 in the Pentagon's Joint Multi-Role Technology Demonstrator (JMR-TD) program as part of the Defense Department's Future Vertical Lift initiative to develop future helicopter technologies.
The 220-knot S-97 features a coaxial main rotor system and an aft thruster and is based on Sikorsky's experimental X2 design.
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