I'm no expert in the field but after building several foils for surfboards/SUPs I have come to a few conclusions. dihedral is the absolute worst...
pumping on a foil board is a different sensation, I find you are trying to 'jump' off the board allowing the foil to unload and the board to rise...
would a flexible 'self feathering' foil work for more leg pumping power?
The unfinished foil in the front is based on the humpback whale fluke with the leading edge tubercles. The black foil I tried a flexible...
I will say it is ALOT harder than it looks! after a couple of minutes of paddling your ring out, trying to steer the board in the chop and leg...
kia ora I have converted some international 14 rudder foils into a surfboard foil with great success, now I am trying to make the whole unit more...