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Hand Shaped Beauty

A forum dedicated to Hydrofoil riders
Foil
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Re: Hand Shaped Beauty

Postby Foil » Sun Oct 14, 2018 8:42 am

keep the pictures coming.
They are the best I have seen.

revhed
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Re: Hand Shaped Beauty

Postby revhed » Wed Oct 31, 2018 5:59 pm

Looks GREAT! :thumb:
Please provide specs. :idea:
Length
Width
Thickness
Weight
THX
R H

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jumptheshark
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Re: Hand Shaped Beauty

Postby jumptheshark » Tue May 28, 2019 1:13 pm

@ WH Lithuania and anyone else riding an all black set up.

Would love to hear your strategies for keeping visual track of your board. This is my new foilboard and I love the simple clean look, but my subconscious wont stop screaming at me that I'm going to lose it out there. I have a couple surfboard tail pads with some color, but will likely ride it naked a few times to see how much of an issue it is now that I'm a little further along the learning curve.
61132849_2163739713674698_947510862564818944_n.jpg
60861696_293264784885301_8160040947292307456_n.jpg
60868896_648363318960546_326098531569893376_n.jpg
Special thanks for the build to one of the true craftsman on here Thewindego

109x45x2cm, 7cm nose scoop

Divinycell core, 2 x 4" uni strips on bottom, 2 x 4" uni strips + 2 x 2" uni strips on deck, 19 oz twill top and bottom.

2.1kg

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Kamikuza
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Re: Hand Shaped Beauty

Postby Kamikuza » Tue May 28, 2019 1:58 pm

Going off topic here, but the belly bottom got me interested in reading...

http://www.surfscience.com/topics/surfb ... ment-hulls

Seems like they're saying the OPPOSITE of what we have today for kiting small waves -- which seems to be planing hull with double V front and flat or channels to the rear.

...wonder how deep a belly you could go, to get volume under the front foot but with a narrower width up there...

tkaraszewski
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Re: Hand Shaped Beauty

Postby tkaraszewski » Tue May 28, 2019 4:51 pm

jumptheshark wrote:
Tue May 28, 2019 1:13 pm
@ WH Lithuania and anyone else riding an all black set up.

Would love to hear your strategies for keeping visual track of your board.
I've been riding a black carbon Moses T38 all year so far and I've yet to have any trouble with this at all. It's just not hard to spot, even in the dark green (and sometimes brownish) water we have here in the river.

tkaraszewski
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Re: Hand Shaped Beauty

Postby tkaraszewski » Tue May 28, 2019 5:01 pm

Kamikuza wrote:
Tue May 28, 2019 1:58 pm
Going off topic here, but the belly bottom got me interested in reading...

http://www.surfscience.com/topics/surfb ... ment-hulls

Seems like they're saying the OPPOSITE of what we have today for kiting small waves -- which seems to be planing hull with double V front and flat or channels to the rear.

...wonder how deep a belly you could go, to get volume under the front foot but with a narrower width up there...
All surfboards are planing hulls, and hydrofoils are neither planing nor displacement hulls. Calling any surfboard a "displacement hull" because it's not perfectly flat (or slightly concave) on the bottom is laughable.
“The faster you go, the more the surfboard actually sucks into the water,” explains Mast. “It holds you in for control, but the downside is the speed limit. If you take a sailboat, for example, and pull it faster than the theoretical hull speed limit of that boat, it will actually submarine."
This is idiotic and clearly demonstrable as false. The "theoretical hull speed" (which is also a grossly oversimplified calculation to the point of being mostly useless, BTW) of my J/70 sailboat is 1.34 * sqrt(22.75) = 6.4 knots. I have sailed this boat at speeds up to about 18 knots. You know what it does when it goes fast? It *planes*. Above about 9 knots of boat speed, a J/70 will come out of the water up onto a plane, just like a surfboard, and despite the fact that the bottom is not perfectly flat.

Just because someone can build a funny looking surfboards doesn't qualify them as any source of authority on anything. This guy might as well be talking about how crystals align your shakras and will heal your arthritis or whatever.
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rynhardt (Tue May 28, 2019 6:31 pm)
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rynhardt
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Re: Hand Shaped Beauty

Postby rynhardt » Tue May 28, 2019 6:34 pm

Kamikuza wrote:
Tue May 28, 2019 1:58 pm
Going off topic here, but the belly bottom got me interested in reading...

http://www.surfscience.com/topics/surfb ... ment-hulls

Seems like they're saying the OPPOSITE of what we have today for kiting small waves -- which seems to be planing hull with double V front and flat or channels to the rear.

...wonder how deep a belly you could go, to get volume under the front foot but with a narrower width up there...
There's a lot of anecdotal beliefs masquerading as knowledge in that link. It's true that a little bit of knowledge is dangerous.

TomW
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Re: Hand Shaped Beauty

Postby TomW » Tue May 28, 2019 7:45 pm

I've built " belly bottom" on 2 boards and double concave with beveled rails on 3 boards. Can't tell any difference really significant. Perhaps belly bottom has more forgiving touch down.
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Kamikuza (Wed May 29, 2019 1:12 am)
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Kamikuza
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Re: Hand Shaped Beauty

Postby Kamikuza » Wed May 29, 2019 1:13 am

rynhardt wrote:
Tue May 28, 2019 6:34 pm
Kamikuza wrote:
Tue May 28, 2019 1:58 pm
Going off topic here, but the belly bottom got me interested in reading...

http://www.surfscience.com/topics/surfb ... ment-hulls

Seems like they're saying the OPPOSITE of what we have today for kiting small waves -- which seems to be planing hull with double V front and flat or channels to the rear.

...wonder how deep a belly you could go, to get volume under the front foot but with a narrower width up there...
There's a lot of anecdotal beliefs masquerading as knowledge in that link. It's true that a little bit of knowledge is dangerous.
So where are the sources of knowledge? That was the top hit that actually contained something about "belly bottoms" and not some dodgy photos or diet sites...

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jumptheshark
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Re: Hand Shaped Beauty

Postby jumptheshark » Wed May 29, 2019 1:20 am

call me simple, but I don't think you need think about any of that stuff with respect to a pocket sized foil board.

Keep it simple and shed everything you can. You don't need bottom shape or rail shape. The wings were on now pop you up to foiling within the first three feet of travel. Once proficient, even nose rocker is optional.


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