PPRuNe Forums - View Single Post - VNE of light helicopter, altitude reduction ?
Old 27th Jun 2017, 20:40
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Vne in an auto is still hugely important, largely because of the huge increase in drag which both slows down the blades and increases RoD.
I think the most important part of that is that the driving section of the blade in auto is reduced, the dragging section increases and at high speed, Nr cannot be maintained. Hence the Vne in auto for many helicopters.
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