Contact   Imprint   Advertising   Guidelines

DIY Home Made wooden Hydrofoil fins

A forum dedicated to Hydrofoil riders


User avatar
Hawaiis
Very Frequent Poster
Posts: 1371
Joined: Wed Aug 24, 2011 11:39 am
Kiting since: 9
Local Beach: Kailua
Brand Affiliation: None

Re: DIY Home Made wooden Hydrofoil fins

Postby Hawaiis » Sat Nov 23, 2013 4:54 pm

The cord on the koa wood struts are100mm, thickness between 22mm to 24mm. They are stiffer than the MHL, the 22mm is not quite as stiff as Carafino. The 24mm is stronger than both. They are only sealed for water. I hate fiberglass.
Rush Randle, MHL and Carafino all have 20mm thickness. And I wonder why.

zfennell
Very Frequent Poster
Posts: 972
Joined: Wed Nov 20, 2002 1:00 am
Kiting since: 0
Brand Affiliation: None
Location: rhode island

Re: DIY Home Made wooden Hydrofoil fins

Postby zfennell » Sat Nov 23, 2013 5:43 pm

Hawaiis wrote:The cord on the koa wood struts are100mm, thickness between 22mm to 24mm. They are stiffer than the MHL, the 22mm is not quite as stiff as Carafino. The 24mm is stronger than both. They are only sealed for water. I hate fiberglass.
Rush Randle, MHL and Carafino all have 20mm thickness. And I wonder why.


Excellent.
Thanks.
Just to be clear. The 24mm strut is stronger or stiffer or both?
-bill

don pitcher
Frequent Poster
Posts: 210
Joined: Sat Aug 27, 2005 7:32 am

Re: DIY Home Made wooden Hydrofoil fins

Postby don pitcher » Sat Nov 23, 2013 8:29 pm

ronnie wrote:The UA4085 louvre aluminium extrusion looks about right for a mast? 94mm chord and 10mm thick.
Australian company.

http://www.ullrich.co.nz/images/louvre_3.jpg


Nice find. Thanks!

ronnie
Very Frequent Poster
Posts: 3633
Joined: Sun Jul 24, 2005 6:39 pm

Re: DIY Home Made wooden Hydrofoil fins

Postby ronnie » Sat Nov 23, 2013 10:23 pm

don pitcher wrote:
ronnie wrote:The UA4085 louvre aluminium extrusion looks about right for a mast? 94mm chord and 10mm thick.
Australian company.

http://www.ullrich.co.nz/images/louvre_3.jpg


Nice find. Thanks!


If I was going to use it I would expect to have to fill it with fibreglass though. There are figures for strength and stiffness of production struts which would allow comparison of the bare extrusion.

I don't know what the skin thickness is but they said the diagrams were true size, so you should be able to measure it.

User avatar
Bille
Very Frequent Poster
Posts: 2801
Joined: Sun Sep 04, 2011 5:37 pm
Kiting since: 2003
Local Beach: Lake Mohave
Gear: Ozone Edge
Brand Affiliation: Barz Optics
Jaybar Dynabar V7

Re: DIY Home Made wooden Hydrofoil fins

Postby Bille » Sun Nov 24, 2013 5:44 am

Hawaiis wrote:The cord on the koa wood struts are100mm, thickness between 22mm to 24mm. They are stiffer than the MHL, the 22mm is not quite as stiff as Carafino. The 24mm is stronger than both. They are only sealed for water. I hate fiberglass.
Rush Randle, MHL and Carafino all have 20mm thickness. And I wonder why.


Finally , i "Get it" !!

I won't be breaking any speed-limits on water , while i'm learning
to NOT do face-plants with a hydrofoil.

So the speed-penalty of the thicker wood strut Vs the carbon one ;
won't bother , me one little bit !!

Bille

User avatar
Hawaiis
Very Frequent Poster
Posts: 1371
Joined: Wed Aug 24, 2011 11:39 am
Kiting since: 9
Local Beach: Kailua
Brand Affiliation: None

Re: DIY Home Made wooden Hydrofoil fins

Postby Hawaiis » Mon Nov 25, 2013 11:23 am

Testing only one Wood front wing Hydrofoil

BWD
Very Frequent Poster
Posts: 2821
Joined: Thu Jun 05, 2003 3:37 am

Re: DIY Home Made wooden Hydrofoil fins

Postby BWD » Mon Nov 25, 2013 5:29 pm

I like the transparent wing!!

User avatar
Laughingman
Very Frequent Poster
Posts: 2600
Joined: Mon Mar 16, 2009 4:35 pm
Kiting since: 2009
Local Beach: Kp, MBay, Rond
Favorite Beaches: Kp, MBay, Rond, Long Bay, Cayo Guillermo
Gear: Ocean Rodeo Gen4 Flites 10m, 12m and 14.5m, 2016 Prodigy 5m and 7m
Xeon Laluz, 2010 OR Mako Wide 150, Mako Classic 150, Jellyfish Custom surf board quad fin 6'
Engine Custom Harness and sliding hook setup
Location: Southwestern Ontario

Re: DIY Home Made wooden Hydrofoil fins

Postby Laughingman » Mon Nov 25, 2013 5:36 pm

Is that plexiglas or lexan?

User avatar
Hawaiis
Very Frequent Poster
Posts: 1371
Joined: Wed Aug 24, 2011 11:39 am
Kiting since: 9
Local Beach: Kailua
Brand Affiliation: None

Re: DIY Home Made wooden Hydrofoil fins

Postby Hawaiis » Mon Nov 25, 2013 6:37 pm

Laughingman wrote:Is that plexiglas or lexan?

It is plexiglass that I have laying around in the house, size 1/4"x3"x14"
May be they should call it flexinglass. It is harder to ride due to its flex, but wouldn't it be cool if the strut is made out of invisible material, and it will look like you are flying on a magic carpet.

User avatar
Laughingman
Very Frequent Poster
Posts: 2600
Joined: Mon Mar 16, 2009 4:35 pm
Kiting since: 2009
Local Beach: Kp, MBay, Rond
Favorite Beaches: Kp, MBay, Rond, Long Bay, Cayo Guillermo
Gear: Ocean Rodeo Gen4 Flites 10m, 12m and 14.5m, 2016 Prodigy 5m and 7m
Xeon Laluz, 2010 OR Mako Wide 150, Mako Classic 150, Jellyfish Custom surf board quad fin 6'
Engine Custom Harness and sliding hook setup
Location: Southwestern Ontario

Re: DIY Home Made wooden Hydrofoil fins

Postby Laughingman » Mon Nov 25, 2013 7:07 pm

That would be cool... maybe if you glassed lexan it would be stiff enough?


Return to “Hydrofoil”

Who is online

Users browsing this forum: BraCuru and 2 guests