Rotorcraft
More ground tests before X2 can fly
Sikorsky has nearly finished building its X2 coaxial compound helicopter demonstrator in Elmira, N.Y.

Sikorsky has nearly finished building its X2 coaxial compound helicopter demonstrator in Elmira, N.Y. According to Jim Kagdis, Sikorsky’s manager of advanced programs, additional ground tests are needed, but first flight is “within arm’s reach.” He declined to provide a specific time period.

As of mid-July, the X2, minus its pusher propeller, had performed 15 hours of ground tests. Part of this time was with the rotor blades on. Another 35 hours will be required before the single-pilot rotorcraft takes to the air. Ground tests take place at test facilities of Schweizer Aircraft, which Sikorsky owns.

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