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what's the right J/80 polar?


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Only recently acquired a J80.

The owner manual shows a polar diagram generated in 2000 which looks like this

image.thumb.png.8ad4d1406615a8f0aabeff695e2f4251.png

 

However I came across an extract of the owner manual from 2006 and the polar looks like this:

image.thumb.png.33154d9d38f3fb434ca9db46a96a6f18.png

 

The upwind performance of the second polar looks closer to a J/88s.

Which one is right??

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