Aloha Lee , I got to thinking about your Edge board and thought about one of Steve,s old boards its 6’5’‘by 22.5 t 17’’ n 18 and 3/8s full hull .Its a bit of a fish, part stubbie,and it GOes . It has a 3 fin set up,not your standard thruster fin temp , but 3 small flexfins, a bit like Merricks but with more tip and more flex. Also has a shallow fishtail 2’’ deep ,lot of hip in the tail. I got the board back from a buddy to restudy,also 3’’ thick floats good .Its been road hard by many .AAAAny way It would be cool with the edge on it,… a combo of my Gross and your edge on the bottom. I would go to 7’0’‘but the 6’5’’ paddles great.Ifin your into it let me know and give me abuzz,and Ill Disect and filet the little beast.Via con Dios.KP.
hello Lee and Kirk, when I grabbed the rails of the EdgeBoard in the water I immediately felt a different shape from which I am accustomed. Close examination showed that they were thin, soft, sort of 50/50 coming to an apex, sitting above a hard semi-channel with the planing surface edge as its boundary. So this sort of relates to the hard v soft rail discussion going on. I would guess that the engaged rail would have its concave edge channel filled with water. If its true that thin rails penetrate a wave face more then I guess the curved part of the EdgeBoard rail would do that. If its true that a curved soft rail wraps the water then they would do that too. I have been able to reach firm conclusions on fins but not rails - as Eric J said there are so many variables that it can get hard to compare different boards. For example my convertible xps board has thin, down, soft rails, tucked under but no sanded edge ( i use the term “edge” in the conventional sense and not EdgeBoard sense). But it will not hold a hi line in the form I like best - twin. But if I convert to twinzer the same board holds a hi line. It struck me that the surfers who should have figured out how to get a rail to hold are the ones who have no fins ie the sponge boarders. I am not a sponge boarder, but get the impression that the bevelled edge has been established as the way to go for them. Sometimes the bevel is concaved. I wonder if the concaved semi channel edge of your board would function similar to the concave bevel of a sponge and be used for traction? Also the way the EdgeBoard rails come to an apex sort of resembles the way the flat surfaces of the 50/50 sponge rail meet (they are bevelled above and below a pointed apex). this link has pics and description of sponge rails http://members.ozemail.com.au/~chrisggg/design.htm However on the rail that is not engaged in the wave face does the edge serve another purpose?
Kirk…check your messages. Mike: I don’t buy the channeling thing at this point but may as I continue to ride it. The point, for me anyway, was to make a short radius hull. Something that would rail turn but in a smaller radius. My discussions with people smarter than me indicated that the pinched rail, three stage rocker, single fin, with a wide point up from the middle (sort of what defines a rail turning board) needed to be over 7 feet long to work right. Apparently you need that length to overcome the inherent “slowness” of the hull bottom to get to planing speed. Rather than call bullshit and make short hull anyway, I tried to separate the different design functions…flat plane for effective planing and pinched curvey rails for rail turns with a sharp exaggerated edge separating the two…and it seems to work. My next personal board was going to be an old school fish with an edge bottom when I read your thread about sanding the edge off to create a “standard”. So I have started working with Dale S. regarding gluing a 1/4 inch prefabed “edge bottom” onto a shaped and glassed board. That way I can ride a board with no edge, then add it on later to see the difference. I can also experiment with various edge bottom shapes too…As Rich says, “Research continues”
Hey Lee I didnt think that post went thru but I guess it did, cool. The plan shape on the board is way curvyer than your edgeboard.It rolls over on rail easy and the template lets you turn in a shorter arc you can pop the top alot easyer than your standard Liddle.Steve worked on these for years before we went to the 8’0’'s .THis could be a cool project Ill call Andreini and see what blank would be best so to get some S in the deck and put some edge on it.Goin to surf later KP.
Hey Lee the nose on the board is 18’'even.The finboxs are the small fins unlimted type no toein at all fins are foiled on each side. My idea is to run the edges more parallel to give the board more drive not just follwing the template GGs edgeboards did that.Bad redtide up here small.
Lee- it’s a ripper of a board.KP and I are talking about doing a couple of 7 foot versions.I think you would like this board!
LeeV wrote: "My next personal board was going to be an old school fish with an edge bottom when I read your thread about sanding the edge off to create a “standard”. So I have started working with Dale S. regarding gluing a 1/4 inch prefabed “edge bottom” onto a shaped and glassed board. That way I can ride a board with no edge, then add it on later to see the difference. I can also experiment with various edge bottom shapes too…As Rich says, “Research continues” " that is an awsome concept you guys are playing with! you might revolutionise surfboard production. The industry might consist of a core set of chassis builders with a proliferation of Speed Shops producing bolt on goodies. Just imagine purchasing a chassis full of carbon rods with adjustable flex and rocker, then picking up some bolt on concaves and maybe a swallow tail block.
Hey Mr J. I think you’re right on about the 50-50 chine rails on the boogies that will pull a high line. I don’t ride them but have a Kingfish by Pat Ryan with rails like that from the nose to the stinger and it holds the high line very well. I surfed down hard rails on midlengths for years and tended to fall to the trough of the wave, no energy there and I got left behind more than I would have liked. Now interested in a trad fish but afaid that the standard 70s keel twin will skate well but not pull a high line when I want to trim a section and not pump it. I’d be stoked I you would share some specifics, (especially fins, rails and width) on the twinzers you mention that like to surf high on the face yet still have great speed with that fishy feel and go real well in flatter and smaller surf. Thanks a lot! Ride on, Dan
hello Dan, although my board has the same application as a fish and uses some of the fish features - 21 3/4" wide, wide nose, low rocker it is not a traditional fish - in particular the tailshape and fin setup. Just about all the dimensions and fin placements are documented under Eric J’s “pink xps report” thread, so you can search the archives for that. However mine was a parallel “blue” project and shouldn’t be confused with his pink project ie Eric J and Mr J are not the same person! the thing to note is that I found the twinzer slower on the diagonal path down the wave than the twinzer - I’ve been using the term"fall line" for this but not sure if I am using it correctly., I therefore prefer using it as a twin, as you correctly noted the twin is forever seeking the base of the wave. So I’m forever sending it back up for another fall line, but this motion is more of a skating type action and a lot less effort than say pumping an over-rockered tri fin. I believe I have the twin placements spot on but my twinzer setup was a little too far forward. Don’t let this description stop you from making a twinzer if thats what you want, as everyone wants to surf different PS in my reports, I make use of the word “supercharger” for the canard fin I was testing, but shouldn’t have. I thought that was common terminology at the time - I hadn’t been following swaylocks very long. But I have since had a chance to see a Herb Spitzer board and his superchargers are smaller than my canards, so I think the term is reserved to canards of Spitzer design only. if you have more questions you are welcome to ask , I’ll be going away for a few days so may not be able to answer til the weekend cheers, Mike