Sikorsky X2 Technology Helicopter Achieves 250kt [Video]

It happened on September 15, 2010 when Sikorsky X2 Helicopter achieves 250KT. Helicopters we know cruise at around 150kt. The X2 reached 260kt in a shallow dive as is expected to exceed 250kt in level flight once a sail fairing is fitted between the upper and lower rotors to reduce drag further. The Sikorsky Helicopter X2 uses a single T800 engine to power both the rotors and the tail-mounted variable-pitch propeller, which provides forward thrust to enable the high speed.

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