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by BWD
Mon Oct 15, 2018 4:19 pm
Forum: Hydrofoil Builders
Topic: Best way to add bolt threads in the board for the mast when building board?
Replies: 20
Views: 1111

Re: Best way to add bolt threads in the board for the mast when building board?

Tee nut on top is stronger. Keeps full board in compression and spreads loads to deck and bottom. Also easy to inspect and repair. Nut hidden in middle of core relies on core strength, so needs much more core reinforcement. And if it starts to break, you won’t know, until it fails completely. Also, ...
by BWD
Sun Oct 14, 2018 5:31 pm
Forum: Kitesurfing
Topic: OBX nasty water warning
Replies: 6
Views: 737

Re: OBX nasty water warning

Thanks for the public service warning. Scary situation. Hope you’re better soon! Also for public benefit, if you’re willing: Where were you riding? What’s the organism? Vibrio? Others? Multiple? Did you cut yourself in the water? Did you have a previous injury/open wound/sore? What’s your age? Do yo...
by BWD
Sun Oct 14, 2018 4:36 pm
Forum: Hydrofoil Builders
Topic: Best way to add bolt threads in the board for the mast when building board?
Replies: 20
Views: 1111

Re: Best way to add bolt threads in the board for the mast when building board?

If you want to groove a coupling nut (or other small round piece of hardware), chuck it in a drill and hold the edge/corner of a file against it while turning medium speed. Similarly you can taper threads this way if needed (on flat of the file of course), etc. works fine with a hand drill.
by BWD
Fri Oct 12, 2018 3:28 pm
Forum: Hydrofoil Builders
Topic: Best way to add bolt threads in the board for the mast when building board?
Replies: 20
Views: 1111

Re: Best way to add bolt threads in the board for the mast when building board?

You can mount inserts from the deck, just make sure they are in a solid column of epoxy so loads are spread between deck and bottom laminate. Or you can get long nuts or specialty fasteners somewhere, admittedly a pain...
by BWD
Tue Oct 09, 2018 10:54 pm
Forum: Hydrofoil
Topic: Cloud vs Reo.
Replies: 43
Views: 4207

Re: Cloud vs Reo.

Well there was one who seemed to say the clouds weren’t good after trying to fly one once. Surprised he didn’t say that about his hydrofoil also. Or did he master foiling in an hour? Anyway I first tried a cloud in 2013. Immediately I could tell some advantages, disadvantages and differences, but it...
by BWD
Tue Oct 09, 2018 4:11 am
Forum: Hydrofoil
Topic: Groove Skate issue
Replies: 6
Views: 677

Re: Groove Skate issue

Use grease/anti-seize!
Prevents
Corrosion
Seizing
Galling
Also reduces wear on tools and bolt heads etc., you don’t have to torque it as hard.
tefgel, lanolin, trailer bearing grease, anything beats nothing!
by BWD
Sun Oct 07, 2018 3:29 pm
Forum: Hydrofoil
Topic: Difference on the small foil boards..
Replies: 11
Views: 1354

Re: Difference on the small foil boards..

I think it’s about cg. Cg of a foil is usually “in” the mast closer to the foil than the mast plate or top. Cg of a board is in the middle of the board. Cg of the total is on a line in between. The longer in front of foil the board projects, the closer to the board, and farther from the foil, the to...
by BWD
Sat Oct 06, 2018 2:14 pm
Forum: Hydrofoil Builders
Topic: Flying Wing Commentary
Replies: 3
Views: 159

Re: Flying Wing Commentary

When L & F wrote “symmetrical” did “they” mean in the aerodynamic sense or the geometric sense?
Are “winglits” sharp or , erm, “blunted”
Why fences? They’ve been unnecessary on conventional, stables, and canard configurations so far...
by BWD
Fri Oct 05, 2018 11:02 pm
Forum: Board Builders
Topic: Torsional flex - now a good thing :-)
Replies: 13
Views: 874

Re: Torsional flex - now a good thing :-)

if they were clever they would figure out how to make the forward heelside edge twist up to allow efficient lower rocker but avoid catching that front corner on steep chop, etc.
Were they clever, or just too clever by half?
reviews will be interesting...
by BWD
Fri Oct 05, 2018 5:02 pm
Forum: Hydrofoil
Topic: Cloud vs Reo.
Replies: 43
Views: 4207

Re: Cloud vs Reo.

@ tartax
You Europeans should really push gong and storm to develop strutless or one strut lei's with lighter reinforcement and shorter bridles.

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