I would recommend building it, testing it, prove it works then go the board manufactures.
Seems to me like you are going about the process in reverse.
I also wouldn't be bothered about sharing your design, most people are too busy/ lazy to copy anything and there is no money in windsurfing anyway.
Also FYI whilst the the sail does push 'down' on the board sometimes, when you are planing properly the sail is often raked over the sailor so it actually provides vertical lift. There are lots of examples of this... jumping would be the obvious one.
Al
Select to expand quotebarn said..
How did I get dragged to this Barn 
. This looks to me like a fishing trip from the original author who knows very little about windsurfing. LEAVE me out.....Please
Sorry Kato, just grabbed a familiar poster from the GPS scene..
It's a Simpsons reference where a character tries to sell a monorail to Springfield..
Select to expand quoteGfly said..
I
A lot of people may disagree with me but you can find boards shaped in the 70s that dont look that different to modern boards; and sailing and kiteboarding are now faster record holders.
Which boards of the '70s look anything like "modern" ones?
Select to expand quoteterminal said..
This is a windsurf trimaran. That is one possible route to take for a bi-directional windsurfer with J foils.
Sailrocket is a uni-directional speed machine. Some speed windsurfers have only one boom side and an asymmetrical fin. It would be a lot easier to design a unidirectional J-foil windsurfer, but a bi-directional one could be done where the leeward J-foil was clear of the water.
I have read an article by Kevin Pritchard where he mentions the Starboard designer Tiesda You (who is a small guy) keeping up with Kevin speedwise by using a trimaran windsurfer he had built.
To be honest, I can't see why that trimaran board would be as fast as an early '80s Div 2 board or a Raceboard, if you want something for light winds. That low-prismatic shape was tried but it was slower than a high-prismatic shape. Skinny shapes don't plane well and if you're not planing, a longer U-bottom shape is better.
if I were buying a free ride board I would be getting me one of those super thin ones. I never really understood why boards were so thick.
Select to expand quoteevlPanda said..
if I were buying a free ride board I would be getting me one of those super thin ones. I never really understood why boards were so thick.
... static buoyancy be damned !
What's the "i" stand for?
Is it a reference to the iSonic, and if so then what's that "i" in reference to?
Ditto the iPod and the BMW 318i
iDon'tGetIt.
Select to expand quoteevlPanda said..
What's the "i" stand for?
Is it a reference to the iSonic, and if so then what's that "i" in reference to?
Ditto the iPod and the BMW 318i
iDon'tGetIt.
iKnow! Maybe they think that without an 'i' in front it won't have the same sales appeal for iGen X.
discussions.apple.com/thread/2632371?tstart=0
the I pays homage to the isonic because the ifoil boards are made from recycled isonics that have hit fish.
I hit fish all the time without damage but in your case it would be hard to sitting behind a computer
Select to expand quoteHroar said..
I hit fish all the time without damage but in your case it would be hard to sitting behind a computer
guppies don't count peter. 
