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Business
Nature 435, 735 (9 June 2005) | doi:10.1038/435735a; Published online 8 June 2005
In brief
Helicopter manufacturer Sikorsky says it is planning to build a prototype helicopter that will make use of new materials, electronics and other systems to fly one-and-a-half times as fast as any existing model. The Connecticut-based company says that the craft will use advanced composite materials, an active vibration control system, and two rotor blades turning in opposite directions on the same axis, to propel itself at almost 290 kilometres per hour.
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