While Clean Sky aims to make aircraft of all types more environmentally friendly, the Friendcopter program - now complete - involved more advanced levels of technology and was entirely dedicated to helicopters. Noise was central to the project and Eurocopter worked with some 34 partners, including several research centers."An important aspect of Friendcopter related to low noise procedures, and this was defined in three ambitious goals," explains Marc Gervais, in charge of the Eurocopter work group.
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