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Old April 14th 16, 06:19 AM posted to rec.aviation.soaring
xcnick
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Posts: 64
Default Polar numbers for Discus A

On Monday, April 11, 2016 at 12:26:20 PM UTC-7, C-FFKQ (42) wrote:
On Monday, 11 April 2016 15:11:19 UTC-4, xcnick wrote:


Nick, I'm sad to inform you that Udo died a few years ago after a lengthy illness.



That is sad.

In the Johnson article he works very hard to get to published L/D. However what struck me is how far off the manual's numbers are at the high end and he doesn't mention it.

Are many manufactures too optimistic at the fast end?