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Fish surfboard fin question? #2968528
06/15/19 03:13 PM
06/15/19 03:13 PM
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South Africa
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Therock Offline OP
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If i get a traditional fish is it possible to ride it with twin keels or a quad if there are 4 plugs?
Will the fin boxes be correctly placed for these two types of fin configs?
Some ppl have mentioned you can only have it one way...twin keel only or quad only.

Re: Fish surfboard fin question? [Re: Therock] #2968647
06/15/19 11:06 PM
06/15/19 11:06 PM
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Show






a picture of these plugs


Nobody surfs here anymore..........it's too crowded

shaka
Re: Fish surfboard fin question? [Re: Therock] #2968667
06/16/19 02:21 AM
06/16/19 02:21 AM
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Palm Coast , Florida
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Greg Griffin Offline
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Usually the front plugs are too far forward for the keel

While the rears are too far back for the Keel

Using FCS Plugs for the rear fins you may be able to add a set for the Keel without the plugs hitting each other .

Re: Fish surfboard fin question? [Re: Therock] #2968954
06/16/19 11:24 PM
06/16/19 11:24 PM
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I see in some of these new performance twins that the fins seem to be quite a long way forward. Also some keel/twin fins can be stepped back a little from the base, like some rears or side bites are.
In Mayhems new Smooth Operator model the test riders surf it as a 2+1 then a quad and finally as a twin, which really seems to loosen it up but retains drive.
When designing a board are the bottom contours specific to the fin setup? All of the 5 fin boards I have surfed have been much better with one of either a thruster or quad setup, making you think it was specifically shaped for one or the other.

Re: Fish surfboard fin question? [Re: Therock] #2968984
06/17/19 12:33 AM
06/17/19 12:33 AM
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To make it a Keel and 4 Fin he would need custom fins with the tabs moved to the front so the plugs can be moved forward so they don't hit the 4 fin rear plugs .

I will check tomorrow .

Re: Fish surfboard fin question? [Re: Therock] #2969019
06/17/19 03:21 AM
06/17/19 03:21 AM
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if you get a set that moves the keel forward you might be able to use them in the back boxes.

I have a set of glide keels in fcs tabs and the tabs are quite far back, moving the fin forward a bit. Now if you had a rail quad setup with the rears further forward than 6", then you might get away with this.

or if you use robin mair's quad layout you could easily use the rear boxes at 8" :

https://www.mairdesigns.com/assets/resource-files/HFINS-QUAD-Layout-2018-PRINT.pdf

Last edited by toddo; 06/17/19 03:25 AM.
Re: Fish surfboard fin question? [Re: Therock] #2969049
06/17/19 10:52 AM
06/17/19 10:52 AM
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"I have a set of glide keels in fcs tabs and the tabs are quite far back, moving the fin forward a bit. Now if you had a rail quad setup with the rears further forward than 6", then you might get away with this. "

4 Fin rears at 6" went away along time ago , Hyped as the setup - 12 and 6 on shortboards including Fish shapes

Many top shapers started there with Futures backing this placement with their 3 1/2" rears at the reinterest in 4 fins around 2005

Look at the progression since then , no need to show mine since 1983 :-)

Another Fun cycle of marketing to watch again ;-)

Re: Fish surfboard fin question? [Re: Greg Griffin] #2969054
06/17/19 11:45 AM
06/17/19 11:45 AM
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Originally Posted by Greg Griffin
"I have a set of glide keels in fcs tabs and the tabs are quite far back, moving the fin forward a bit. Now if you had a rail quad setup with the rears further forward than 6", then you might get away with this. "

4 Fin rears at 6" went away along time ago , Hyped as the setup - 12 and 6 on shortboards including Fish shapes

Many top shapers started there with Futures backing this placement with their 3 1/2" rears at the reinterest in 4 fins around 2005

Look at the progression since then , no need to show mine since 1983 :-)

Another Fun cycle of marketing to watch again ;-)



i'm not very familiar with your 4 fin setups, how far back do you have them?

Noticed robins placements in the linl above looked way forward at 8" compared to what i've experienced. I've only dabbled with 4 fins though. most success so far was with a setup similar to mckee but the rears pushed a little wider.

Re: Fish surfboard fin question? [Re: Therock] #2969060
06/17/19 12:00 PM
06/17/19 12:00 PM
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Greg Griffin Offline
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1983 Local Motion

[Linked Image]


1995

[Linked Image]


2006 4 3/16" rears , Futures only had a 3 1/2” rear :-) So many boards were made with them

[Linked Image]

[Linked Image]

2016 + Black Rails :-) 4 1/4" tall rears

[Linked Image]

Excuse my “ spam “ I am proud of what I have done :-)


Re: Fish surfboard fin question? [Re: Therock] #2969161
06/17/19 02:54 PM
06/17/19 02:54 PM
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Posts: 19,162
Palm Coast , Florida
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Greg Griffin Offline
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"If i get a traditional fish is it possible to ride it with twin keels or a quad if there are 4 plugs?
Will the fin boxes be correctly placed for these two types of fin configs?
Some ppl have mentioned you can only have it one way...twin keel only or quad only."

Adding plugs for the Keels you can do this with custom tabbed fins and custom placed plugs .

Custom forward placed tabs :

[Linked Image]



My 4 Fin Fish rears placed where they work best

[Linked Image]

It looks like I can make it a Keel as well using the tabs placed at the front of the Keel enabling my placement without plug placement problems after plugs are modified .

[Linked Image]

Now I can offer these - In combination .

[Linked Image]



[Linked Image]