“This template works as one surface gathering energy and releasing it
immediately to move forward down the face slightly to the side running
more water thru the fin constantly gaining speed.”
“Every thing you do in surfing is quicker, smoother, more controlled and confidence inspiring with these templates and the G-10 stiffness.”
“Board and fin design that enable regular surfers to do more will enable pros to do even more.”
My experience riding Greg’s boards for over 5 years now is that everything stated above is true. I think there may be one thing that should be noted… we are riding waves in Hawaii. There may be a difference is the power of the waves here compared to where you are. These fins work really well here, but more imporantly the combination of his fins and boards are fine tuned. Take a good look at how Greg’s board are setup. There is something going on with the fin placement and it’s important to the way the board rides. My 5 fin boards are like Ferraris compared to anything else I’ve ridden. Even in small mush, they seem to work well.
Now as a side note. Robin Mair is doing something totally different with his boards and fins, but he is a convert to G10 and is pretty much only making** G10** fins right now. His setup is Quad only, and I like his ideas. I have a set that I’ve been waiting to try since January. I hope to give the board a good test as soon as the next south swell arrives (this week!).
When you say outside foil, do you mean an asymmetric foil with the flat side facing inward toward the center of the board vs. a symmetric foil with matching curved surfaces on both sides?
Would it work on a 6’3" retro single fin…???..On a 8’0" egg…???..A 9’0" longboard…???..A 10’6" noserider…What sizes and types of boards is that fin designed for…???..
Does it only come in one size…???..What sizes are avaliable…???..
I’m not an engineer and that’s what we’ll need, or somebody with a very solid grasp of fluid dynamics, hydrodynamics, foil theory and calculus. I have a basic understanding of the principles involved (physics) but have forgotten most of my calculus since I learned it almost 40 years ago.
Fins are foils. Performance will be affected by foil surface area and shape (outline and surface curve), laminar flow, cavitation, drag, fluid density, angle of attack, pitch, yaw, stall etc.
Very generally,
A symmetric foil is for directional control (a rudder)
Maybe there are some Swaylockian engineers out there who would be willing to chime in and give us some understandable technical interpretation (technology transfer) and discussion about your fin design.
Greg - I am glad this sorta got on track… I don’t know what to say about your templates that you haven’t already said. Lots of good knowledge there. Thanks for sharing.
