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Forums > Windsurfing   Gps and Speed talk

Small fin risks

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Created by Jasonwave Friday, 29 May 2026
Jasonwave
163 posts
Friday , 29 May 2026 12:10AM
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Hello

i am looking at my Futura 100L/63 wide and wondering what might happen to me if I attempt an afternoon of speed runs with a much smaller fin.


its spec’d for 32 fin with a 6/6,4 m sail for my 80kg and runs nicely at around 30-33 knots peak with a Rhino Pro in flat water but I am no speed expert yet.

what do I risk if I put a 26 Black Project Speed fin on it this weekend, as am expecting 25-30 knts of wind. Butter flat water.


not worried about getting back upwind, can walk if have to.

but am worried about the 2 hr drive back home if I F-up.

stupid or go for it ?

John340
QLD, 3414 posts
Friday , 29 May 2026 5:26AM
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Select to expand quote
Jasonwave said..
Hello

i am looking at my Futura 100L/63 wide and wondering what might happen to me if I attempt an afternoon of speed runs with a much smaller fin.


its spec’d for 32 fin with a 6/6,4 m sail for my 80kg and runs nicely at around 30-33 knots peak with a Rhino Pro in flat water but I am no speed expert yet.

what do I risk if I put a 26 Black Project Speed fin on it this weekend, as am expecting 25-30 knts of wind. Butter flat water.


not worried about getting back upwind, can walk if have to.

but am worried about the 2 hr drive back home if I F-up.

stupid or go for it ?


Try a 27 Tribal Weed Speed

choco
SA, 4186 posts
Friday , 29 May 2026 6:31AM
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No problem, just need to load the fin slowly and once up to speed the board will fly off the wind, only negative is you won't point as high and will let go in chop if too back foot heavy.

kato
VIC, 3528 posts
Friday , 29 May 2026 2:31PM
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26 no issues, when the topic said small fin I was thinking below 20. Your only concern will be jibing as the fin might pop out mid turn

ka43
NSW, 3103 posts
Friday , 29 May 2026 5:54PM
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As Choco said. At Budgy I use a 19cm weedy on a 99 ltr board. Its usually pretty flat but you lose upwind ability.
Or a 25cm weedy if a bit lighter.



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Forums > Windsurfing   Gps and Speed talk


"Small fin risks" started by Jasonwave