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Twintip hydrofoil?? Any news test??

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socommk23
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Re: Twintip hydrofoil?? Any news test??

Postby socommk23 » Sun Mar 19, 2017 12:31 pm

Kamikuza wrote:
Sun Mar 19, 2017 12:12 pm
socommk23 wrote:
Sun Mar 19, 2017 10:59 am
Waaa waaaa waaaa
Purists are such dull people. How about trying it because its different? Or to at least have an informed opinion? People knocking it without actually having a go are like people with political opinions without a vote.
Zzzzzzzzzz
So, have YOU actually ridden a foil yet at all?

... I bet you eat soup with a fork, for the different experience.
Yes. I have now ridden a foil. One i built myself. And its not easy. Something to work on. And my mind is still open to trying different things.
Eating soup with a fork....dumb analogy.

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Kamikuza
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Re: Twintip hydrofoil?? Any news test??

Postby Kamikuza » Sun Mar 19, 2017 12:37 pm

Perfect analogy, you'll realize that once you can ride the foil and have tried a few more. Unlike a political opinion, some things ARE just wrong.

kiterocky
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Re: Twintip hydrofoil?? Any news test??

Postby kiterocky » Sun Mar 19, 2017 12:40 pm

Twintip maybe are more entry level foil.. Are wrong?
Than liquid Force naish and Moses silente are wrong too?
But somebody have tried twintip or not?

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Re: Twintip hydrofoil?? Any news test??

Postby Peter_Frank » Sun Mar 19, 2017 1:30 pm

kiterocky wrote:
Sun Mar 19, 2017 12:40 pm
Twintip maybe are more entry level foil.. Are wrong?
Than liquid Force naish and Moses silente are wrong too?
But somebody have tried twintip or not?
I dont think a TT foil would be easier to ride, but instead a bit or a lot more difficult, as it does not track and stabilise the same way, and not evenly balanced on feet unless you have the sliding fuselage (and making things even more complex is usually not a good road) :roll:
Yes, you dont have to "jibe", but that would be the only advantage, and does not really come into play until you have learned to ride a bit.

It works, no doubt at all, and a few of the pioneers in here has actually built and ridden one I know :D

You should also ask in the Kitesurfing part of the forum, as here on the Hydrofoil forum almost or everybody has learned to ride (directional)hydrofoils, so you wont find anyone who seeks a TT foil of course.

Maybe it could be good for some freestyle, landing blind and reverse and such.
But your jump height will suffer a lot on these, so not so sure really :wink:

Strapless as maybe the majority of hydrofoilers rides after the learning period, seems a bit dubious on a TT foil, or ?

Let us see what happens, maybe there could be some advantages one day, or a new design that rocks everything !

8) PF

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Re: Twintip hydrofoil?? Any news test??

Postby kiterocky » Sun Mar 19, 2017 2:21 pm

https://youtu.be/o7cDoWceapw


Need Russian translator

phpBB [video]

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Re: Twintip hydrofoil?? Any news test??

Postby Mossy 757 » Sun Mar 19, 2017 3:00 pm

socommk23 wrote:
Sun Mar 19, 2017 12:31 pm
my mind is still open to trying different things.
That's a good thing, don't let anyone tell you otherwise.

That being said, there is a difference between good ideas and bad ones. From a technical engineering standpoint, a bidirectional foil simply cannot perform to any degree worth remarking.

Strut located equally between feet? Bad idea.

Wing shapes that lift in both directions? Bad idea.

Strut mounted equidistant on fuselage between wings? Bad idea.


I'm an avid snowboarder and almost all snowboards have a front and a back, but they can be ridden switch to a limited degree, freestyle boards much more so versus all mountain.

A directional foil that can be sorta ridden backwards might be cool so you can ride switch out of tricks, but it would definitely be mostly directional just so that it could actually work.

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Re: Twintip hydrofoil?? Any news test??

Postby Peter_Frank » Sun Mar 19, 2017 3:07 pm

kiterocky wrote:
Sun Mar 19, 2017 2:21 pm
https://youtu.be/o7cDoWceapw


Need Russian translator
So what you seek kiterocky, is to be able to turn direction like this, without having to get out of the straps:

phpBB [video]


Indeed they work for that :naughty:

8) PF

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Re: Twintip hydrofoil?? Any news test??

Postby kiterocky » Sun Mar 19, 2017 3:40 pm

The difference with normal foil is the jibe only? Or less speed? Thats it?

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Re: Twintip hydrofoil?? Any news test??

Postby Peter_Frank » Sun Mar 19, 2017 4:14 pm

kiterocky wrote:
Sun Mar 19, 2017 3:40 pm
The difference with normal foil is the jibe only? Or less speed? Thats it?
Less speed, less stability, less upwind, less downwind, less flow, less jibe/tack fun, less freedom 😊

8) PF

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Re: Twintip hydrofoil?? Any news test??

Postby Horst Sergio » Sun Mar 19, 2017 4:15 pm

Peter_Frank wrote:
Sun Mar 19, 2017 1:30 pm
...I dont think a TT foil would be easier to ride, but instead a bit or a lot more difficult, as it does not track and stabilise the same way, and not evenly balanced on feet unless you have the sliding fuselage (and making things even more complex is usually not a good road) :roll: ..

I think this is the point why this topic is popping up every year.
Non hydrofoilers think: TT easier than directional, therefore: TT hydrofoil (TTH) easier than dirictional hydrofoil. But just from the theory that has to be wrong.
TTH as the french design in the russian video (thanks, translation would be interesting)
ride like a canard and are therefore more instable than normal. For sure not as instable as a mono but how the user in the video moves, looks pretty similar to instability of a mono.

I think the "TwinFOIL" has an interesting construction detail with its sliding fuselage, but consequences for usage (bathing the butt every turn) and hydrodynamics are not attractive.

@kiterocky:
What a guy said who has tried the brunotti:
"... alles andere als leicht zu fahren - eher im gegenteil." = "... everything else then easy to ride - more the opposite."
- more drag (what sais physics)
- less fun (what I am pretty sure)


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