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Old Aug 08, 2010, 10:27 AM
brett s is offline
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Roswell, GA
Joined Jun 2004
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Quote:
Originally Posted by davylah View Post
By the way, before anyone mentions the Sikorsky X2, it's not a helicopter, it's a gyroplane.
Nope, it's a compound helicopter.

The Rotodyne used tip jets powering the rotor for takeoff & landing only, the X2 rotor is powered all the time and mechanically linked to the pusher prop.

Still not a true helicopter of course & isn't in the same class as far as speed records go, and it's not the fastest compound one either - it's probably the fastest prop augmented one though (it's faster than the AH-56 anyways). The Bell 533 & Lockheed XH-51 were both faster decades ago but used jet augmentation
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