I think the fact that I have a 9'0" single fin with a good amount of rocker made out of fiberglass and foam, and ClemsonSurf has wooden boards will make the first two tests interesting in a comparative frame of reference. Assuming the waves are similar. I use a 8" True Ames Squirrel Cutaway, which can be a bit too loose on a steep chest high plus takeoff. I have tried traditional fins, but they are too stiff for me on typical clean lined up knee to chest high longboardable waves. I like to turn and cutback rather than noseride, unless its really small and weak. I am not a good noserider, I learned to surf as a shortboarder and took up longboarding to get more time on the wave as conditions determine. After a while, I really got to love the glide and feel and speed of the longboard. Especially on clean lined up days that are not breaking too heavy.
Probably won't be compatible with the wood boards, fins are glassed on. I might be able to drop a fin box on the one I'm working on now though. The fins are compatible with Futures boxes right? I've got plenty of options between my quiver, Father in Law's and friends.
Our multi fin combinations are tabbed for futures or fcs, the singles are all for standard single fin boxes though, So far all the multi finned side fins etc are BLEFs except the bonzers.
The Gull Wing should be a good alternative to the Squirrel cutaway. The cutaway on the Squirrel has a rather narrow chord in the middle of the fin which might explain the issues on takeoff as the narrow part could possibly stall at the lower speeds on takeoff. If it stalls in the middle the fin rake will cause the turbulence to migrate towards the tip. The thin foil and obviously poor foil ( which can be seen by the coloured contour lines ) won't help either. Fin position will be important, the base of the Gull Wing should be further back, how much further I don't know.
A burp would probably 'sound like an engineer' to you Yankee, in terms of brain power you seem to be a classic case of 'all hat no cattle'.
Randy Rarick, gnome, Randy Rarick. Let him test drive your NASA fin, since he already did up your plank.
It's not a NASA fin, and it has an Eppler 168 foil. We can offer a NACA16-012 option like we do with the Spitfires but the Eppler is the most suitable I think. I do have an uncle who works for NASA on artificial intelligence though, maybe he can help you with an implant? Rarick shmarick, say something interesting for a change.
Rarick's superb review of your plank IS interestign, gnome. Maybe not to you, because you're a pompous douche canoe who is building ...... well ..... douche canoes, but it is what it is. You claim vast surfboard superiority that merit your $500k asking price for your planks; actual reviews rank your product right up there with Larry Walters, the doofus who launched his lawn chair with weather balloons 20k feet over San Diego & claimed to have a better way to reach the moon.
I like the way the pictured fin works overall. It doesn't stall on takeoff, but I will pay more attention on the drop in to give you better feedback. My main beef with it is it is too loose on the bottom turn if it is steep and fast. It tends to slide and become erratic when heavily loaded. i was thinking of getting a 9" version of the same fin for bigger days, but at that point I usually break out a shortboard because I love to shred on good waves. But it all goes hand in hand, if you can longboard on decent waves, shortboarding becomes very easy and more sytlish, and if you can shortboard on good waves, you can learn to longboard on decent to marginal waves and catch lots more waves when shortboarding becomes a chore. The right fins in the right conditions can help tremendously. The same board can be a whole new different board with a fin change.
Hmm yes it has a very long chord length in the tip ( fore and aft length) and it is already a thin fin, no doubt it's also tapered in thickness towards the tip so the thickness to chord ratio is probably very low which could easily mean tip stall at higher angles of attack when bottom turning. The flex could also be causing an oscillation. A 9" version will probably cause 1/8th more of the same problem. Takeoffs might be an issue if turning sharply while taking off, that's what I was thinking. Should be no issue dropping straight down or angling though.
artificial intelligence,is your uncle spying on the easter bunny?a nasa engineered surfboard....on si lol.curious to know if u ever sold a board
FWIW Roy, I commend you on allowing a broader spectrum of the surf community a chance to give you some real world feedback on your work. Certainly, a couple of my earlier posts were written in an attempt to convince you to do so. Alternatively, I sincerely hope that you will not be as immediately dismissive as you have historically been, in the event that some of the feedback you receive on this project is not as positive as you would prefer. Regards and good luck, kidrock.
Thanks. I will do as I always do... which is to analyse the situation as accurately as possible and respond accordingly.