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best approach speed and techniques to avoid vortex ring condition
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5th Jun 2017, 19:04
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Hughes500
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to avoid vortex ring you need to have a rate of descent less than the downwash speed. I would suggest that 300 ft a min is not right. Most downwash speeds are in the region of 800 ft a min plus but that does depend on heli type and how heavy it is.
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