I am looking to upgrade from my pink alloy Neil Pryde to a foil with more light wind performance.
I use a 2014 117 carbon isonic (without any reinforcement) as I am quite a light rider (<70kg).
I have found an RRD wh ALY set but it only comes with a tuttle head when my board is a deep tuttle.
Does anyone have any experience using this foil in a deep tuttle board, with long screws? It also has a plate to spread the forces on the deck.
Any help would be greatly appreciated.

The problem with a non-foil box is when you hit something, then the screws will get pulled into the top of the box, as well as cracking of the box. Sure some people will say it worked fine for them and it has for you so far, as long as you do not hit anything. I do not think it makes a difference between Tuttle and deep Tuttle because top of mast head does not touch top inside of either DT box, just do not use a mast head shim.

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Sandman1221 said..
The problem with a non-foil box is when you hit something, then the screws will get pulled into the top of the box, as well as cracking of the box. Sure some people will say it worked fine for them and it has for you so far, as long as you do not hit anything. I do not think it makes a difference between Tuttle and deep Tuttle because top of mast head does not touch top inside of either DT box, just do not use a mast head shim.

I am quite aware of the issues of using a non-foil box; just don't have the funds to foil without the compromise, unfortunately.
Thanks for the info; ill give it a go.

The plate on the foil head lowers significantly the stresses on the fin box (assuming it's the style of plate that fits the bottom deck). At your weight, I'd imagine you'll be lowering the stresses from what it was with the pinkie. Almost anything is an upgrade to the pinkie, though.

If you do eventually damage the fin box, you can pop in a proper re-enforced deep tuttle box (assuming the deck is deep enough). Plenty of tutorial videos on how to do it if and when you get to that point.

What you can do is maybe use a Chinook power plate. I'm not saying it will save your board, but that could certainly help to redistribute a bit the force?chinooksailing.com/products/powerplate-windsurf-foil-plate-coming-soon

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Paducah said..
The plate on the foil head lowers significantly the stresses on the fin box (assuming it's the style of plate that fits the bottom deck). At your weight, I'd imagine you'll be lowering the stresses from what it was with the pinkie. Almost anything is an upgrade to the pinkie, though.

If you do eventually damage the fin box, you can pop in a proper re-enforced deep tuttle box (assuming the deck is deep enough). Plenty of tutorial videos on how to do it if and when you get to that point.

Yeah, Its that type of plate; Sounds like the stresses wont be too bad.

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NordRoi said..
What you can do is maybe use a Chinook power plate. I'm not saying it will save your board, but that could certainly help to redistribute a bit the force?chinooksailing.com/products/powerplate-windsurf-foil-plate-coming-soon

That looks very useful, thanks ; not sure if it will fit the top of my mast but It the tuttle doesn't fit in the board that looks like a decent option to solve it.

I wouldn't worry too much here.
There are adapters to put on top of your tuttle head (basically just a block of plastic with two holes). They more or less recreate a deep tuttle head and divert some of the load from the sides of the bow to its top. This might calm your conscience.
just one example:
www.ebay.de/itm/203012648583
You could easily cut or 3d-print these.
I find it more important to spread the load on the deck and it's good to hear RRD has taken care of this in your case. Otherwise you could just laminate a small plate suitable to your deck which you fix with your finbox screws.
The only fwindfoilboard I've ever used has a Deep Tuttle box not reinforced for foiling and I can say from own experience that hammering the foil into the ground at 20 knots and a 90 kilo rider is painful yet does not necessarily damage the box this way (GPS watches are great!). I've even tested this twice in search of scientific validation.

Looks like that foil has a load plate, it should be fine at your weight.

I used my medium tuttle foil in a deep tuttle box fine. I did have to drill out the box a bit to take the bigger screws for the foil.

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ZeeGerman said..
I wouldn't worry too much here.
There are adapters to put on top of your tuttle head (basically just a block of plastic with two holes). They more or less recreate a deep tuttle head and divert some of the load from the sides of the bow to its top. This might calm your conscience.
just one example:
www.ebay.de/itm/203012648583
You could easily cut or 3d-print these.
I find it more important to spread the load on the deck and it's good to hear RRD has taken care of this in your case. Otherwise you could just laminate a small plate suitable to your deck which you fix with your finbox screws.
The only fwindfoilboard I've ever used has a Deep Tuttle box not reinforced for foiling and I can say from own experience that hammering the foil into the ground at 20 knots and a 90 kilo rider is painful yet does not necessarily damage the box this way (GPS watches are great!). I've even tested this twice in search of scientific validation.

Haha, that adaptor looks really useful, thanks!

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thedoor said..
I used my medium tuttle foil in a deep tuttle box fine. I did have to drill out the box a bit to take the bigger screws for the foil.

Thanks

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Isonic117 said..

thedoor said..
I used my medium tuttle foil in a deep tuttle box fine. I did have to drill out the box a bit to take the bigger screws for the foil.

Thanks

Mind that the drilling was done because SS use M8 for the foil head. Everyone else (afaik) uses M6