Weak demand sends Sikorsky spinning - Financial Times [feedly]

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Weak demand sends Sikorsky spinning - Financial Times
// sikorsky: Google Noticias

Financial Times

Weak demand sends Sikorsky spinning
Financial Times
Fitted with two rotor blades — one on top of the other and spinning in different directions — the Sikorsky X2 reached a speed of 250 knots (288mph), faster than any previous helicopter. The innovative engineering of the two opposing sets of rotors ...

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