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by tburd
Thu Apr 17, 2014 2:06 pm
Forum: Hydrofoil
Topic: Main strut construction - cores
Replies: 7
Views: 1558

Re: Main strut construction - cores

Thanks for all the input.

Sounds like core is a non-issue, since we're aiming towards the 12mm size fin. We'll try a few construction methods, test, and report back for those who are interested.
by tburd
Tue Apr 15, 2014 1:25 am
Forum: Hydrofoil
Topic: Main strut construction - cores
Replies: 7
Views: 1558

Main strut construction - cores

There's some information scattered around different threads, but I'm hoping to find some more details on main vertical construction - specifically related to the build of higher end production foils. I'll be using prepreg carbon in female molds, cured in an autoclave. Ideally I'd like to flange the ...
by tburd
Sat Apr 12, 2014 1:47 pm
Forum: Hydrofoil
Topic: Tuttle box vs. mounting plate
Replies: 9
Views: 2517

Re: Tuttle box vs. mounting plate

Thanks guys, sounds like a box is the way to go! I am inexperienced with board building, but have a lot of composite design time. Any idea which box is typically used in the current boards (or windsurfers)? Online, I'm finding a $60 composite Waterat, or a $10 plastic Chinook option. Either way I'll...
by tburd
Fri Apr 11, 2014 4:11 pm
Forum: Hydrofoil
Topic: Tuttle box vs. mounting plate
Replies: 9
Views: 2517

Tuttle box vs. mounting plate

It seems that most production foils have a flat plate with screw holes for attaching to the board, though some are now mounting with Tuttle boxes. In my mind, the plate style is easier to build strong, and can be attached to a variety of boards. The Tuttle system is simpler, less draggy, but demands...
by tburd
Thu Oct 03, 2013 2:31 pm
Forum: Gear Builders
Topic: Foil design details
Replies: 22
Views: 6637

Re: Foil design details

Thanks everyone. Has anyone doing a home build had the chance to measure one of the high aspect production foils - Sword, Spotz etc? I'm specifically interested in the foil section. Are they symmetrical or asymmetric? My understanding of the anhedral is that it is more unstable, but reduces the risk...
by tburd
Wed Oct 02, 2013 7:20 pm
Forum: Gear Builders
Topic: Foil design details
Replies: 22
Views: 6637

Foil design details

I'm in the process of designing a home built foil and was hoping those with more exposure would be able to help out a bit. There are no foils nearby to examine, and I'm curious as to what foil section, chord length, aspect ratio, area, AOA, etc have proven to be most successful. Additionally, is the...

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