Eurocopter is hoping a new hybrid helicopter concept will allow the company to bring to market a high-speed Super Puma- or Dauphin-sized rotorcraft before the end of the decade. The company last week unveiled its X3 helicopter demonstrator, which is aimed at validating the ability to fly more than 220 kt. using what the Franco-German helicopter makers bills as a simple design approach. The twin-turboshaft-powered demonstrator uses two propellers on a short wing for forward speed, with a ...


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