Hi, I have a design idea and a couple of questions I would like to pass by you guys.
I apologise in advance if it all sounds a bit silly and ramblingly but that's my train of thought!
I have been reading some archive posts on how the sheet of water that slides around underneath you and it would be better released if fins weren't there to get in the way of the water releasing.
Guys such as Bert were mentioning raising the fins off the base of the board to help with this, and trying to devise tests to work out how thick this sheet of water is.
A fin with a cut away goes some way to alleviate this problem as more releasing water can pass under the cut away section, than is the whole fin is attached to the board.
My second train of thought has been, cant and angle of attack (AOA), and how a fin with a cut away has the possibility to bend the trailing edge of the fin foil to create more lift.
I think I'm right in thinking that as any turn is initiated a flexible trailing foil edge will bend in the direction of the surfer giving more lift making turns more positive with better hold and turning circle. If this was possible and it worked effectively, the toein angle could be reduced to reduce drag.
I know that Blakestar has been working on the intelligent toein system and it sounds amazing, and his knowledge on that subject is phenomenal.
Obviously the actual toein wouldn't change here, but just as a plane adjusts the trailing edge of the foil to create lift the same would happen here.
I guess my questions are.
Firstly has anyone tried this before?
Does the theory sound reasonable before I go and try it?
I've never fully understood why some fins are foiled with a totally flat edge and some arn't.
Obviously most of the time this depends if they are on the rail or at the centre, I mean, is this dictated by the toein, ie if you have a straighter toein can you foil your fins with more convex cure on the inside edge?
Thanks