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9 years ago

General Gps & Speed Waves Foiling Gear Reviews Lost & Found WA NSW QLD SA VIC TAS

PaulWWW

NSW

16 posts

PaulWWW

NSW, 16 posts

28 May 2017 9:30am

Can anyone explain the purpose of the rubber "flap" at the rear of my old seatrand 70 board?

fjdoug

ACT

548 posts

fjdoug

ACT, 548 posts

28 May 2017 10:26am

patents.google.com/patent/US5683280

gavnwend

1374 posts

gavnwend

WA, 1374 posts

28 May 2017 8:29am

Stopping cavitation.they were a good board in their day.

RichardG

3761 posts

RichardG

WA, 3761 posts

28 May 2017 6:44pm

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

1482 posts

joe windsurf

1482 posts

29 May 2017 6:27am

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