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Building my first hydrofoil

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Lev737
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Building my first hydrofoil

Postby Lev737 » Mon Mar 20, 2017 11:21 am

Hi guys!

Never tried it- it's too expensive to buy yet...
Spent this winter my days off to experiment with building hydrofoil and the board.
Also built a few different wings and stabs with different AR.
Please find my pictures attached and if it's possible -send me your feedback.

Cheers :jump: .
Lev
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Last edited by Lev737 on Fri Mar 24, 2017 9:34 am, edited 7 times in total.

Bluecrewmark
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Re: Building my first hydrofoil

Postby Bluecrewmark » Mon Mar 20, 2017 2:51 pm

Nice rookie build Lev! What materials did you use for the board, wings, fuselage? More importantly, how does she ride?
Bluecrew Mark

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juandesooka
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Re: Building my first hydrofoil

Postby juandesooka » Mon Mar 20, 2017 6:07 pm

Nice! Good job.

I like the U Channel fuselage ... low tech and looks effective. Is that stainless steel?

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Re: Building my first hydrofoil

Postby plummet » Mon Mar 20, 2017 9:29 pm

Interesting.

I have a couple of thoughts.

Mast seems real short whats its length?

I worry the channel and bolt heads/nuts will provide turbulence and reduce performance. Perhaps consider filling in the channel.
I also wonder if the rear vertical stab is too far forward to be effective? You could mount it directly above the rear stab.

Is the board also used without the foil? if not why install fins?

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Re: Building my first hydrofoil

Postby NorCalNomad » Mon Mar 20, 2017 9:51 pm

Cool shit, like U idea, although why not fill it in where it's not needed. Are those tuttle boxes on the wings?

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Re: Building my first hydrofoil

Postby bigtone667 » Mon Mar 20, 2017 10:06 pm

My first thought looking at your wing thickness was: This reminds me of the old DC3. Won't be fast, but it might fly forever. HUGE back wing.

Nice work.

Lev737
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Re: Building my first hydrofoil

Postby Lev737 » Tue Mar 21, 2017 9:11 am

Bluecrewmark wrote:
Mon Mar 20, 2017 2:51 pm
Nice rookie build Lev! What materials did you use for the board, wings, fuselage? More importantly, how does she ride?
Bluecrew Mark
Thanks, Mark!

The materials used are:
foam, tempered aluminum alloy 6063 T6, ABS plastic, pine, balsa, 4 oz e-glass, 6 oz twill carbon, and stainless steel hardware.
Last edited by Lev737 on Fri Mar 24, 2017 9:35 am, edited 1 time in total.

Lev737
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Re: Building my first hydrofoil

Postby Lev737 » Tue Mar 21, 2017 9:14 am

juandesooka wrote:
Mon Mar 20, 2017 6:07 pm
Nice! Good job.

I like the U-Channel fuselage ... low tech and looks effective. Is that stainless steel?
Thank you juandesooka!

It's Aluminum alloy 6063 T6.
And it's 2 channels- please look at my sketch...
Last edited by Lev737 on Fri Mar 24, 2017 9:36 am, edited 2 times in total.

Lev737
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Re: Building my first hydrofoil

Postby Lev737 » Tue Mar 21, 2017 9:23 am

plummet wrote:
Mon Mar 20, 2017 9:29 pm
Interesting.

I have a couple of thoughts.

Mast seems real short whats its length?

I worry the channel and bolt heads/nuts will provide turbulence and reduce performance. Perhaps consider filling in the channel.
I also wonder if the rear vertical stab is too far forward to be effective? You could mount it directly above the rear stab.

Is the board also used without the foil? if not why install fins?
Hello plummet !

1.I've built 3 masts- 550, 750 and 950 mm long;
2. All empty spaces in both channels I filled with foam;
3.For the front bolts and nuts, I'm planning to make a cover...;
4. Made the board with fins in purpose - I could use it as a regular board...
5. The vertical stab can be moved back- no problem :jump:
Fins can be removed.
Thanks for the feedback!
Last edited by Lev737 on Tue Mar 21, 2017 10:04 am, edited 2 times in total.

Lev737
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Re: Building my first hydrofoil

Postby Lev737 » Tue Mar 21, 2017 9:28 am

bigtone667 wrote:
Mon Mar 20, 2017 10:06 pm
My first thought looking at your wing thickness was: This reminds me of the old DC3. Won't be fast, but it might fly forever. HUGE back wing.

Nice work.
Thank you bigtone667 !
The idea was just to have some fun and get some experience while building not expensive prototype which I could use for learning....
No sharp edges and short mast to start.
I calculated the stab and the wing area- should be OK.
Last edited by Lev737 on Tue Mar 21, 2017 10:02 am, edited 3 times in total.


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