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Would this work on a cat? (Self-adjusting camber boards). #178279
05/15/09 05:43 AM
05/15/09 05:43 AM
Joined: Sep 2004
Posts: 2,584
+31NL
Tony_F18 Offline OP
Carpal Tunnel
Tony_F18  Offline OP
Carpal Tunnel

Joined: Sep 2004
Posts: 2,584
+31NL
I came across this website about windsurfing fins and was wondering if this idea could also work on a daggerboard.

The idea is that the camber changes when you tack, making it more efficient and requiring a
smaller size than normally required (maybe a bit like gybing daggerboards but more advanced?).
http://www.smartfins.nl/technology.html
[Linked Image]

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Re: Would this work on a cat? (Self-adjusting camber boards). [Re: Tony_F18] #178436
05/17/09 07:12 AM
05/17/09 07:12 AM
Joined: Jun 2001
Posts: 623
Gulf Coast
tami Offline
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tami  Offline
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Joined: Jun 2001
Posts: 623
Gulf Coast
I had trouble getting the site to load, but it's prolly been done.

The Amateur Yacht Research Society (AYRS) has been around an awfully long time, and someone there has tried everything conceivable. I'd start by looking there, they have a website.



Re: Would this work on a cat? (Self-adjusting camber boards). [Re: tami] #178489
05/18/09 01:42 AM
05/18/09 01:42 AM
Joined: Jan 2007
Posts: 129
Netherlands
Genealex Offline
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Genealex  Offline
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Joined: Jan 2007
Posts: 129
Netherlands
I couldn't load the site either, but as you mentioned the gybing daggerboard, I remember Bethwaite writing that they disturbed the flow over the rudders. So my reasonably uninformed guess would be that they would be OK for surfboard fins where there are no foils behind them but for boats where there's a a rudder behind the daggerboard results could be disappointing...

Last edited by Genealex; 05/18/09 01:45 AM.
Re: Would this work on a cat? (Self-adjusting camber boards). [Re: Genealex] #178490
05/18/09 01:48 AM
05/18/09 01:48 AM
Joined: Sep 2004
Posts: 2,584
+31NL
Tony_F18 Offline OP
Carpal Tunnel
Tony_F18  Offline OP
Carpal Tunnel

Joined: Sep 2004
Posts: 2,584
+31NL
Somehow I cant edit my own post so here are the fixed URLs (they where changed after I posted my message):
http://www.smartfins.com/technology.html
[Linked Image]


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