So.....How narrow can I go?

> 10 years ago
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LSD
LSD
VIC
763 posts
LSD LSD
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3 Aug 2009 11:17pm
This is the 20' outline at 26" wide, it has heaps of stability. What about 24".....22"....?

laceys lane
laceys lane
QLD
19804 posts
QLD, 19804 posts
3 Aug 2009 11:22pm
LSD said...

This is the 20' outline at 26" wide, it has heaps of stability. What about 24".....22"....?




ive seen a proto type board at 24"
log man
log man
VIC
8289 posts
VIC, 8289 posts
3 Aug 2009 11:23pm
Holy mother of Christ!
boarder paul
boarder paul
1952 posts
1952 posts
3 Aug 2009 9:24pm
you called
DavidJohn
DavidJohn
VIC
17570 posts
VIC, 17570 posts
3 Aug 2009 11:48pm
Dean.. I think anywhere between 22 and 24" would be fine but I think going too narrow would be a mistake.

You don't want your stance to be too narrow.. and you don't want to be standing too close to the edge of the rails.

Sounds like you're thinking about making another one?

DJ





log man
log man
VIC
8289 posts
VIC, 8289 posts
4 Aug 2009 12:33am
eoow DJ , those pictures make me feel a bit sea sick
LSD
LSD
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763 posts
LSD LSD
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4 Aug 2009 12:36am
DavidJohn said...

Dean.. I think anywhere between 22 and 24" would be fine but I think going too narrow would be a mistake.

You don't want your stance to be too narrow.. and you don't want to be standing too close to the edge of the rails.

Sounds like you're thinking about making another one?

DJ

.
Yes, I will make another if I can see an improvement resulting in more fun,( we dont want to get wet on these cool days......thats not fun)
log man
log man
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8289 posts
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4 Aug 2009 12:37am
What's that formula for speed of a hull again ? Shure it would be faster as a 22" or 20" but one fall off in a race would lose a lot more time.
Piros
Piros
QLD
7303 posts
QLD, 7303 posts
4 Aug 2009 8:45am
A good test to go narrower would be to stand on a prone racing board , I've seen smaller people stand on these when we train in the river and they absolutely fly , I say go as narrow as possible , don't worry about the feet being too close just offset them a little.

The stand up board that won the mal function race was a prone paddle board , they just cut out foot wells in it , very rough but effective it was nick named "The Mutant" Kelly and Dale Chapman put it together.

You don't have to be a hydrodynamics expert to work out narrower is faster and because this is a flat water board only I think this should be as narrow as physically possible.

Great effort LSD a really great left field design.....keep them coming. Alot of eyes are on what you are doing.

Rob

LSD
LSD
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763 posts
LSD LSD
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4 Aug 2009 8:46am
log man said...

What's that formula for speed of a hull again ? Shure it would be faster as a 22" or 20" but one fall off in a race would lose a lot more time.


I have no idea what the formula for speed is.........

BUT! I do know the formula for a fun SUB = cheap+light+fast+stable+easily made
Take any one of those design parameters out of the equation & it reduces the fun....for me.
OG SUP
OG SUP
VIC
3516 posts
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4 Aug 2009 9:09am
Hey LSD,

You, Adam and Jarod definitely have the FUN bit nailed!

Eyes should be on what your doing, those boards you were riding and throwing around on the weekend blew alot of people away.

Watching you get down the face in that wind 25 - 30kts on those light 8ft boards was a real eye opener for me, then seeing you nose ride almost half way to the beach you get my vote. I have always used a heavier board in those conditions thinking it sat in the wave better with the weight???

The first time you lift up an LSD creation its so light you almost throw it out of the carpark and that is no BS. Your theory on windage and the small board seem to work well I saw it with my own eyes.

There were guys on 12ft boards paddling their rings off and could not get down the faces on some off those waves on Sat afternoon. The short paddle boards like LSDs and Rich and my 9'6s were the weapons of choice unless you wanted to sit inside. Inside was not the place to be on a sneak set lol uless you like pain.

Opps forgot to say then topping it off you got the only barrel I saw all weekend.

If there is swell this week I will stay on the beach and shoot vid and pics.

Oh and you can buy tickets to the show at:

www.LSD DOES IT HIS WAY AND IT WORKS.com.au

Phill



Bnaccas
Bnaccas
VIC
1722 posts
VIC, 1722 posts
4 Aug 2009 10:07am
I think you could go 24" or possibly 22".
Like you and others said stability is important. It could end up a play off between optimum feet position and outright speed. Altough your feet might be slightly narrower than normal this might be out weighed by the speed benifit and efficiency to maintain that speed for longer periods.
555
555
892 posts
555 555
892 posts
4 Aug 2009 8:12am
How about adding some wings into the equation?

You can retain the stance width, but reduce the hull width at the same time.

Perhaps a bit like you see on the NS14 yacht class:


laceys lane
laceys lane
QLD
19804 posts
QLD, 19804 posts
4 Aug 2009 2:03pm
Piros said...

A good test to go narrower would be to stand on a prone racing board , I've seen smaller people stand on these when we train in the river and they absolutely fly , I say go as narrow as possible , don't worry about the feet being too close just offset them a little.

The stand up board that won the mal function race was a prone paddle board , they just cut out foot wells in it , very rough but effective it was nick named "The Mutant" Kelly and Dale Chapman put it together.

You don't have to be a hydrodynamics expert to work out narrower is faster and because this is a flat water board only I think this should be as narrow as physically possible.

Great effort LSD a really great left field design.....keep them coming. Alot of eyes are on what you are doing.

Rob




have a look at the 18 ft prone board topic thats the type of board rob is talking about
LSD
LSD
VIC
763 posts
LSD LSD
VIC, 763 posts
4 Aug 2009 5:43pm
555 said...

How about adding some wings into the equation?

You can retain the stance width, but reduce the hull width at the same time.

Perhaps a bit like you see on the NS14 yacht class:





I have been concidering that idea for a while, its been around for ages in kayaks.
Note the flared hull above the waterline, when healed it produces good secondary stability. That waterline is 17" wide.....DJ will have trouble getting his "Crocks" in that one!

Added stability will be gained from standing 3" below sea level.......now we are getting like a C1!
Check the designers website, another possible way of making SUB's in wood, some beautifull craft www.guillemot-kayaks.com
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