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raft with pvc floats?

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raft with pvc floats?

Unread postAuthor: mopherman » Fri May 11, 2007 10:49 pm

does anybody know how many 5 ft lengths of 4inch if would take to float a raft and like, 3 people? i would like to designe a boat around pvc floats.
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Unread postAuthor: cork9 » Fri May 11, 2007 10:51 pm

thats a cool idea. u would probably need a lot i would think maybe like 5 or 6.
U could use less if u pumped them up to like 50 psi.
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Unread postAuthor: mopherman » Fri May 11, 2007 10:52 pm

i dont think more pressure in the floats would give more floating power. then again, i dont know too much about this stuff
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Unread postAuthor: cork9 » Fri May 11, 2007 10:54 pm

i think it would beacause air is less dense than watter so by increasing the pressure of air in the flot u increase the volume of air there for makeing it more boyant
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Unread postAuthor: ammosmoke » Fri May 11, 2007 10:55 pm

I don't think so, because more air=more weight. Maybe if you used helium lol.
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Unread postAuthor: chaos » Fri May 11, 2007 10:56 pm

i know that 2x 6"x8' wont hold much more than 90kgs.
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Unread postAuthor: mopherman » Fri May 11, 2007 10:57 pm

ahh, i see that sounds logical. if i can get this thing floating, Ill mount cannons on it and some kind of pneumatic propeller engine.
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Unread postAuthor: cork9 » Fri May 11, 2007 10:58 pm

i think the the weight of the air probably isn't to much of a big deal. the boyancy probably over powers it.
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Unread postAuthor: chaos » Fri May 11, 2007 11:01 pm

Helium probably would work well, Hydrogen would be even better, just stay away from sparks :D
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Unread postAuthor: mopherman » Fri May 11, 2007 11:03 pm

lol, the only source of gas i have is a bike pump. i would rather not pressureize them at all. would that be a problem?
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Re: raft with pvc floats?

Unread postAuthor: pyromaniac » Fri May 11, 2007 11:03 pm

mopherman wrote:does anybody know how many 5 ft lengths of 4inch if would take to float a raft and like, 3 people? i would like to designe a boat around pvc floats.


the only problem is you always think of things and never start them.
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Unread postAuthor: homedepotpro » Fri May 11, 2007 11:04 pm

dont pressurize the floats, that makes them more dense and therefore they will have less bowence
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Unread postAuthor: mopherman » Fri May 11, 2007 11:04 pm

yep, its the fatal flaw of having 0-none income
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Unread postAuthor: cork9 » Fri May 11, 2007 11:06 pm

o ok thought maybe it was true.
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Unread postAuthor: Kenny_McCormic » Fri May 11, 2007 11:42 pm

use plastic 55 gallon drums they arent that hard to get ahold of
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