Subsonic said..
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.

I agree - if you're a lighter sailor windfoiling with a tiny sail and holding the boom with one hand half the time, I think the forces/pressures on the T box/plate are way less than if you're 80kg+ foiling powered up with bigger sails in big swells, using the sail power similar to a bump and jumper 😀

Mark _australia said..

jdfoils said..
An i see broken foil tracks almost every week...

only as the manufacturers use rubbish longboard boxes and-or crappy install. Done right it’s a strong as DT and similar weight. Using surf boxes and the ridiculous Gorilla glue installs that surfers did a decade ago (that unfortunately a lot of folks still follow) is just asking to fail.


companies like DT as it’s a more simple install to get done by Asian factories.
Combined with a box that’s really easy to mould in big quantities at Cobra.
With most racey foils being DT that’s why it’s prevailed.


people come to me all the time to get tracks put in for adjustability and love the result. Seems a lot of folks want adjustability. I’ll be keen to see if the adjustable Tuttle is strong enough but with Slingshot pulling out of Oz I dunno if we will see much

My Mozzy installed deep tuttle is still going strong😁

Oops I stand corrected. The windsurfing sale resulted in them going away of course but a quick google shows me plenty of action in Oz with their other stuff

jdfoils said..
So many uninformed opinions...

I ride in a wide variety of locations, gear, and conditions..the only time I move my foil is when I move my footstraps. In fact, I am using locking t-nuts on my windfoil board to assure my foil goes in exactly the same place every time. My wing board uses slingshots RTS system which also assures repeatability. Anyone who has seen the inside of my van would never conclude that "that's not a quiver"

Plates were an improvement in the early 'wild west' days of foiling when everything was different and foil performance was poor. Fortunately that is no longer the case. If you are needing to constantly move your foil position you either need to update your foil system or improve your technique.

As for Tuttle not being strong enough; what about iq foil, kite race foils, or wing race foil. All of these disciplines successfully use Tuttle boxes. While the loads that kitefoil racers produce are scary, their equipment isn't.

Yeah, plate it good for allow people to find the preferred spot for their specific foil on the board they own. And is it just tradition that keeps the PWA foil racers on tuttle? I doubt it, if the plate was stiffer or better the PWA guys would be on it. Having said that I ride plate and I would say its more about the quality of the mast overall, not the connection.

A single track system. Well, at least it’s adjustable but looks weak. Anyhow, nice to see some new ideas

That adjustable Tuttle system is essentially the same as what I came up with roughly 15 years ago when I was designing my Tandem 'Slalom' sailboard. I knew it needed an adjustable fin box to trim the board properly after building previous tandem speed boards, so I drew up the adjustable Tuttle design with a longer box using spacer inserts. I discussed it with Mathew back then, but we didn't get around to building the Tandem board, at least, we have not yet.😏
Then when Anthony Perkins built his Tandem speed board, I discussed with him my view that it would benefit greatly from an adjustable Tuttle box, and described my design. Anthony subsequently built a beautiful version with locking pins for the spacers, which I had not thought of. He has made a video showing and describing it. Very nice work indeed. 😎



As to the pros and cons of using and adjustable Tuttle box in foil boards, I have no idea whatsoever! 😀

Edit. I am of course referring to the Adjustable Tuttle box being made by Tuttlebox.com.

The Radix one is very different and it more like a huge US box with T-nuts instead of plates.
I think if I was to build my Slalom Tandem now, I might prefer that design as it has far more fore-aft adjustability, but then I would not be able to use existing Tuttle fins. 🤔

None of those manufacturers are racing in a serious way, or building foilstyle boards. Freeride doesn't generate the forces where a suboptimal fit using just tapers would matter.

The ones who do race promote the use of roof contact via shims.