d.i.y board

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blueseven
blueseven
QLD
59 posts
QLD, 59 posts
29 Apr 2008 12:23am
Has anyone ever seen anything like this on the water?
Thinking of building purely for the sake of a project, but would like to know thoughts on if it would sail or not.

"quote"
Wooden Raceboard

Recent years have seen the price of racing sailboards skyrocket to $4,000 plus, excluding many sailors. Now you can afford to join the race with a board thats inexpensive to build and be just as competitive.

Like all of Michael's designs, they are easily built. The construction is similar to that of a model aircraft.

The comprehensive plan also incudes fitting a mast track and a finbox to take a standard Turtle fin.
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decrepit
decrepit
WA
12872 posts
WA, 12872 posts
28 Apr 2008 10:37pm
I'm not sure about the definition of "raceboard" but it surprised me to see a dagger board in there.

I'm sure it would sail, but very much doubt it would be competitive, think it would come out a tad heavy.
blueseven
blueseven
QLD
59 posts
QLD, 59 posts
1 May 2008 12:11am
Thanks Decrepit, yeh I don't expect this to be competitive to any degree, but might be fun to build. I was wondering how critical weight would really be,wouldn't there be large variances in rider weights to negate board weight?performance of any board would be based on design wouldn't it?(I know this probably lacks design for good performance, but I lack skill for that anyway !)
blueseven
blueseven
QLD
59 posts
QLD, 59 posts
1 May 2008 12:17am
By the way, my first estimates on materials seem to indicate I might get it out under 20kg's, which I didn't think too bad considering Kona one is 17kg's I think.
Chris 249
Chris 249
NSW
3570 posts
NSW, 3570 posts
1 May 2008 11:21am
John Gettens used to race home-made wooden longboards years ago. They were vast; about 14' long I think, and very, very quick a lot of the time. The weight doesn't have to be a problem as you gain by not having a core.

However, in longboards the rocker line is absolutely critical. You may need to try to find something like a Mistral Pan Am or F2 Lightning 380, IMCO or Fanatic Cat to make sure that this will sail well.

boardboy
boardboy
QLD
554 posts
QLD, 554 posts
1 May 2008 3:28pm
blueseven said...

By the way, my first estimates on materials seem to indicate I might get it out under 20kg's


Well at least you wouldnt have to use tie downs to hold it on your roof racks
decrepit
decrepit
WA
12872 posts
WA, 12872 posts
1 May 2008 7:31pm
weight is a big factor!
Don't be fooled into comparing it with your own weight, and thinking it's such a small percentage it doesn't matter.
That's a common error, your weight is part of the power train, (it's counterbalancing sail sideways thrust). The board and rig are dead weight, getting them as light as possible has a big impact.

20kg sound very heavy to me, but I haven't got much experience with big boards
Mark _australia
Mark _australia
WA
23647 posts
WA, 23647 posts
1 May 2008 7:50pm


20 is not that heavy is it? First one designs and what I learned on (Tyronsea thingy) were about the same weren't they? (too long ago to remember, too lazy to google it )

BUT the main problem with the wooden ribs/stringers/ply construction is that if you get a minor hole in it whilst sailing you are not coming home!!!
blueseven
blueseven
QLD
59 posts
QLD, 59 posts
1 May 2008 10:22pm
Just googled original windsurfer and they came out at 20kg's.
I think a lot of early "plastic" longboards would be close to that.
I will give it a go and see how it turns out, something to do when there is no wind.
As for a small hole in it - as a beginner windsurfer, my swimming has improved so should be right!
sailquik
sailquik
VIC
6171 posts
VIC, 6171 posts
1 May 2008 10:34pm
Mark _australia said...



BUT the main problem with the wooden ribs/stringers/ply construction is that if you get a minor hole in it whilst sailing you are not coming home!!!


Not fast anyhow but remember that wood floats!
dism
dism
NSW
660 posts
NSW, 660 posts
2 May 2008 7:28pm
As for the weight of it:

I've got an old Cavman Raceboard for really light days and teaching mates (huge thing probably 300L or something), it weights 18kg and goes okay I reckon. Sorta plasticy top and some wood in the hull too, glassed bottom.

Hope that helps somehow in working out if you one will work
stribo
stribo
QLD
1628 posts
QLD, 1628 posts
2 May 2008 7:47pm
Why not use balsa and reinforce critical areas with carbon and seal the whole thing in epoxy?
Wet Willy
Wet Willy
TAS
2317 posts
TAS, 2317 posts
2 May 2008 8:13pm
How to have a 200-plus litre board which is still a sinker!
Wet Willy
Wet Willy
TAS
2317 posts
TAS, 2317 posts
2 May 2008 8:15pm
May as well go the bamboo mast and plywood sail while you're at it!
snides8
snides8
WA
1731 posts
WA, 1731 posts
2 May 2008 8:13pm
nup.... you gotta make it out of ironbark!!!
snides8
snides8
WA
1731 posts
WA, 1731 posts
2 May 2008 10:12pm
i have always wondered what it would be like if there was some way of replicating or manufacture artificially, different materials that grow naturally.
such as.....(try not to laugh) the shell of a pistachio nut...
think about it....its as light as a feather, as stiff as carbon and impact resistance...well
you know what i mean.granted a lot of its strength come from its shape but you got to admit its pretty tough stuff......now just got to peel a million more for my next board..
dism
dism
NSW
660 posts
NSW, 660 posts
3 May 2008 7:14pm
snides8 said...

i have always wondered what it would be like if there was some way of replicating or manufacture artificially, different materials that grow naturally.
such as.....(try not to laugh) the shell of a pistachio nut...
think about it....its as light as a feather, as stiff as carbon and impact resistance...well
you know what i mean.granted a lot of its strength come from its shape but you got to admit its pretty tough stuff......now just got to peel a million more for my next board..



I like your ideas snides8...better/lighter/stiffer boards in an eco-friendly material, could be heaps cheaper too, as majority of board material would be previously a waste product of agriculture

Just gotta keep it non-biodegradable when using the board, but biodegradable when board too old. Maybe they would be cheap to make so you could get a new one every 6 months before it biodegrades.

You could get new boards quite often, cheap and feel good about it and producers would get more turnover


Probably a not too silly idea, but good luck getting any of that through the buisness/economics heads of the gear producers
Ads72
Ads72
NSW
362 posts
NSW, 362 posts
7 May 2008 3:52pm
Hi mate, you may like to check out my efforts last year. No blue prints needed!
<www.seabreeze.com.au/gallery/gallery.asp?imageid=5874>;

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