Forums > Windsurfing   Gps and Speed talk

Swing fin?

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Created by waricle > 9 months ago, 29 Apr 2017
waricle
WA, 732 posts
29 Apr 2017 10:19AM
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Has anyone yet invented a variable angle fin after the principle of the centerboard but with an efficient gasket system?
The fin could be foiled to work at its optimum angle 40-50 degrees but provide lift at lower speed on narrow boards.
Perhaps a two piece solid gasket shaped to provide an accurate fit at the required angle at speed?
Too hard?
Or an adjustable vertical fin in an enclosure fitted with the required lift mechanism??














































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shear tip
NSW, 1125 posts
29 Apr 2017 1:53PM
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Mistral Take Off had twin fins that you could change the angle

Its the board on the left:



And maaaaybe the 2nd from the left:

waricle
WA, 732 posts
29 Apr 2017 1:57PM
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nothing new under the sun!

decrepit
WA, 11828 posts
29 Apr 2017 4:00PM
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Yoyo's certainly given it a lot of thought and tried to get me involved, but with my limited resources it just seemed too hard.

It would also have the advantage of lessening the shock of hitting weedburgs, rocks or a shallower that expected sandbank.
Could save the odd bit of equipment let alone the sailor.

choco
SA, 3995 posts
30 Apr 2017 10:38AM
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Could easily borrow from the center board design, just need to design a tuttle head the will allow the fin to pivot and lock

Pacey
WA, 525 posts
30 Apr 2017 1:19PM
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shear tip said..
Mistral Take Off had twin fins that you could change the angle

Its the board on the left:



And maaaaybe the 2nd from the left:



I remember the Mistral Take Off, aptly nicknamed the Break Off for its frequent structural failures



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Forums > Windsurfing   Gps and Speed talk


"Swing fin?" started by waricle