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Old 12th Jul 2010, 14:59
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Jim59
 
Join Date: Jun 2008
Location: Luton
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I've just checked some of my glider's GPS flight recorder files for flight in mountain wave in Scotland, in the lee of the Cairngorms that are about 4,000' high.
I don't do much wave flying so I would guess that these figures are frequently bettered. The wind would probably have been about 40 kts at flying heights.

Climbing between 8,000 to 9,000' achieved around 1,000' per minute.

Climbing between 14,000' and 15,000' achieved around 600' per minute.

The glider used would have been sinking at at least 150' per minute at the speeds being flown so the air was rising at 1,150 and 750 ft/min respectively.

Sink at altitude was of similar magnitudes - although I did try to stay out of it!
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