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Old 13th Jul 2017, 01:27   #1 (permalink)
Join Date: Oct 2006
Location: to far from home
Posts: 11
BK 117 Down draft


Does anyone have the wind downdraft velocity approximate figures while working under a BK117 up to about 10 metres.
I understand it depends on the weight and conditions, let's say near max all up weight and calm conditions.
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