Design question here! My friend hates riding this board as a twin. (Not becasue he hates twin’s or the design…but because he sticks to a very strict standard shortboard diet) Dim’s are 5’10" X 19 1/4" X 2 1/4". He says its fast in a straight line, pivits really quick off the top but does not carry it’s speed through the turn. He wants more grip to drive off of… like his short board. I said “why don’t you ride your shortboard then?..He says he wants a fishier shape for really small summer surf. So we decided to add a small trailer. In fact it’s an H2 small he wants to use with two H2 Medium side fins. My buddy swears by the H2 Mediums for small surf…to each is own, but I have seen him surf and they work (for him) quite well. I don’t have an opinion on these fins because I have never ridden them. We don’t need to stick to these fins. He has a set of MR twins to work with that come complete with a small trailer included. We need to stay with the FCS box set up…because a rep helps us out with the plugs. So how far should I mount this thing from the tail? We were thinking that we would copy a shortboard fin set up (Center of front rear trailer plug 5 3/16” from the center of the rear sidefin plugs). Is it a problem getting that fin too far back like where it’s positioned in the photo. Please help.
Wait a second…did not think of that. So if I did go quad…where would I place the rear fins? The side fins on this board are almost 2" from the rail. There is plenty of space back there to make a quad.
I’m sure I’ve seen a thread relating to quad fin placement not too long back so have a search. You may find that the MR fins with a small set of H2’s could work well together.
I did the same thing to a board last year. Built it as a twin, and added a trailer. The thing rips now.
Put the small trailer in so the edge of the fin is less than an inch from the crack… right about where you have it set up in the pic. It should work fine.
Hey it’s been a while since I asked this trailer fin question and I thought I would give an update.
I added the fin right about where I placed it in the photo as suggested!
I got to see my friend surf it the day I dropped it off to him. He’s a great surfer and really fun to watch. The board seemed to fly, and it was making the tight turns he wanted it to. So I would say it was a success.
I wanted to make it a quad…but my buddy could not be talked into it.
Interesting reading. Now, im not a great surfer, so take that into account, but, on my twin keel fish, i can barely ride it on my backhand, it’s like a lottery, some days i can, some i cant, but when i add a 3’’ trailer, im fine. However, my frontside feels stiff, and seem to lose the “loose” feel, so it’s kind of a catch 22. Maybe i should grind off the keels ( glassed ), and try some twin fins. I guess the most important thing is your mate likes it, thats success.
O Know! Here come resinhead with a snide remark…again.
I’m amazed by the progression of this twin fin thing:
First: it was the retro Keel fin fish, everybody need one of those, very retro, very cool. Very Pigish ride
Then: It was the MR retro style twinny…ooooooh, I can do the broken Gull bottom turn too! Looser faster in the pocket.
Then: It’s the Quad fin, just like the late 80’s…Long like Brother Dannk Kwock…Where’s my Poka Dots. Thick and twitchy
Now: its adding a trailer fin to the twin Fin? Drive, and snap…wait a minute…isn’t that what a >>>>>
Next up: The trifin cluster.
Looks like we have finally come full circle. Welcome back trifinners, see they really do work, there is no holly grail of surfboards, just the progression of performance.
