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Forums > Windsurfing General

Back flap

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Created by PaulWWW > 9 months ago, 28 May 2017
PaulWWW
NSW, 16 posts
28 May 2017 9:30AM
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Can anyone explain the purpose of the rubber "flap" at the rear of my old seatrand 70 board?

fjdoug
ACT, 548 posts
28 May 2017 10:26AM
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patents.google.com/patent/US5683280

gavnwend
WA, 1367 posts
28 May 2017 8:29AM
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Stopping cavitation.they were a good board in their day.

RichardG
WA, 3754 posts
28 May 2017 6:44PM
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Interesting Ken Winner was the inventor and he has invented quite a few windsurfing and kitesurfing innovations and holds a number of patents.

joe windsurf
1481 posts
29 May 2017 6:27AM
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almost purchased a Roberts 28 flapper a couple of years ago for only $200
but the flapper was busted - like the one in the photo
here is some info and i am guessing the flapper was a kind of precursor to the tail cutouts - helping move the fin back on the board

groups.google.com/forum/#!topic/rec.windsurfing/BLonvmaUw-g

NelsonFoils
190 posts
29 May 2017 7:43AM
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NotWal
QLD, 7428 posts
1 Jun 2017 12:15AM
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Yep AVS = anti-ventilation skirt.



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Forums > Windsurfing General


"Back flap" started by PaulWWW