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DIY Home Made wooden Hydrofoil fins

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windfreak74
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Re: DIY Home Made wooden Hydrofoil fins

Postby windfreak74 » Tue Jan 07, 2014 1:50 am

36 hours logged on Project!!
almost there.. but not quite!! :lol:
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2014-01-06_21-28-31_456.jpg
2014-01-06_20-28-23_124.jpg

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Hawaiis
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Re: DIY Home Made wooden Hydrofoil fins

Postby Hawaiis » Tue Jan 07, 2014 5:39 am

Looking good.

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windfreak74
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Re: DIY Home Made wooden Hydrofoil fins

Postby windfreak74 » Sun Jan 12, 2014 10:40 pm

41 hours of work logged! :thumb:
Only vaccum bagging required!
Hope i dont screw it up!
front wing is 576 cm2
48 cms span
10mm thick

back wing is 180 cm2
210mm span
6mm thick
thanks to hawayys , zfennel and Bwd for commenting and helping out! :thumb:
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2014-01-12_18-23-12_117.jpg

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Hawaiis
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Re: DIY Home Made wooden Hydrofoil fins

Postby Hawaiis » Sun Jan 12, 2014 10:49 pm

Looking Good, your wings are on the small side, you will probably need 8-9 knots to plane instead of 6-7 knots if you have 900cm area, but that maybe good for learning, since you don't want it to plane too early in the beginning. The weakest point I think is the joint between the strut and the fuselage, if you put more reinforcement there, it would be perfect.

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windfreak74
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Gear: best 12m Nemesis 2008
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Re: DIY Home Made wooden Hydrofoil fins

Postby windfreak74 » Sun Jan 12, 2014 11:00 pm

do you mean the connection between the fuselaje and mast?
i intend to fiberglass it and put carbón on those parts
now do you think this position of mast is good?
do you think i should increase the back wing?
thanks for your help! :thumb:
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2014-01-12_18-53-11_981.jpg

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windfreak74
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switch nytro 8m 2013
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Re: DIY Home Made wooden Hydrofoil fins

Postby windfreak74 » Sun Jan 12, 2014 11:05 pm

closeup of frot wing
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2014-01-12_17-22-30_439.jpg

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windfreak74
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Re: DIY Home Made wooden Hydrofoil fins

Postby windfreak74 » Sun Jan 12, 2014 11:09 pm

Rear wing
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2014-01-12_18-23-00_577.jpg

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Peter_Frank
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Re: DIY Home Made wooden Hydrofoil fins

Postby Peter_Frank » Sun Jan 12, 2014 11:11 pm

Looks REALLY beatiful, nice work :thumb:

I think the board angle is wrong though...

Your board points too much level or even a bit down it seems ?

The board would typically be pointed slightly upwards, and not level - as you will encounter going DOWN towards the water at a huge angle, quite often, and here you would wish the board to be angled so it wont nosedive :o

At least my experiences, having had several boards, and also had to find the right angle on the last custom one :naughty:

On the other hand, if you NEVER make mistakes and lose the lift, it is okay when "flat" :wink:

The thing is (I assume you are NOT an experienced foiler, right ?), that you can always push on the board to make the foil lift you up, no matter what angle the board is.

But if the angle is too flat, it WILL nosedive resulting in a much worse crash (instead of a "saved" and continue riding) when you lose the lift in chop or waves or if a newbee :cry:

8) PF

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Hawaiis
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Re: DIY Home Made wooden Hydrofoil fins

Postby Hawaiis » Sun Jan 12, 2014 11:16 pm

The two metal inserts at the bottom of the strut might pull the bamboo against the grain. If the bamboo was side ways it would be stronger. I would reinforce those areas.
The position looks good on the board, you may want to make a second front wing at 900cm, the rear wing looks good.

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windfreak74
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Posts: 452
Joined: Tue Mar 23, 2010 1:16 am
Kiting since: 2006
Local Beach: curanipe,costa blanca, punta parron
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desembocadura biobio
Style: Freeride
Gear: best 12m Nemesis 2008
best 9m bularoo 2010
switch nytro 8m 2013
north 135 x 39
skywalker 135 x48
Mako 134x 35
Brand Affiliation: None
Location: Chile/Brasil

Re: DIY Home Made wooden Hydrofoil fins

Postby windfreak74 » Sun Jan 12, 2014 11:20 pm

hello PF,
the angle is wrong,but is not attached yet i just positioned the board on top to ask if the distance of the mast from the back of the board was correct.
the tip of front wing is directly on the middle of the board.
I vhave no experience with foils.
Im building to try it!
Will see how many liters of wáter ill drink to learn kitefoiling! :o :lol:


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