sailortrash said..
Look, Tuttle is fin-solution, to deal with side forces
there is very little of this in a foil, the force is vertical
doesn’t matter if the box goes through the deck, the pressure point is just in front of mast/deck attachment area
what u need is a pedestal solution. We see that implementation in mast/fuse connections. Starboard even went all in with 4 bolts. But those forces are way smaller than what u get on the deck in front of the mast.
Actually, the loads a foil can put on a board/box can be quite monstrous compared to anything a fin does. Theres a lot more leverage force going on at the end of a foil mast when the board gets swung around/heeled over than any fin can do. Only a formula fin might come close.
Thats what makes these adaptable designs somewhat scary, they no longer trap all that force on a small tapered area with a somewhat solidly built oversized box around it, they put the short lever end in a long open surface where the leverage ends up applying the load to the side of the box.
If you’re just foiling along bolt upright with a small foil on then you’re only going to be applying lots of vertical force. But if you’re going to head out and jump/twist/surf swell /turn corners etc, then you’d wanna hope they’ve built something very damn solid next to that long box.