herc40
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Sikorsky X2_EA
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Sikorsky X2_EA
This is the Sikorsky X-2 Demonstrator. The Sikorsky X-2 is a Radical rotor boosts helicopter reaching speeds up to 288 mph
The top speed of helicopters hasn't increased much since the 1960s, but that will change when the prototype of Sikorsky's newly unveiled X2 takes flight. It can travel at up to 288 mph (compared with the 220mph limit of conventional 'copters) using two four-bladed, low-drag rotors spinning in opposite directions and an airplane-like propeller in the rear that...
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