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Water Balloon launcher

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
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Is it possible to make?

Yes
6
86%
No
1
14%
 
Total votes : 7
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Unread postAuthor: The Kid » Mon Oct 22, 2007 7:35 am

i've never tried it and can't remember where i herd it but if you do fill it with soap and water and throw it it won't pop and i've hered of them not poping when shot. don't ask me the sciece of it cause idk crap
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Unread postAuthor: jimmy101 » Mon Oct 22, 2007 11:50 am

There are two issues in launching a water balloon from a spudgun, both related to keeping the balloon from bursting.

1. The balloon will burst if it rubs against the barrel at high velocity. Trivially easy to fix, put it in a cup, half soda bottle, whatever, like several people have suggested. In a suitable sabbot it doesn't matter how fast you accelerate the ballon, it won't burst.

2. A water balloon moving through air at high velocity will burst. Not much can be done about this and it is completely unrelated to how the launcher works.
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Unread postAuthor: Collo » Thu Oct 25, 2007 9:06 pm

Place one water baloon inside another doubleing the wall thickness this shoud withstan the pressure of launch
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Unread postAuthor: psycix » Fri Oct 26, 2007 5:41 am

Use a condom! :D

those are made not to rip
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Unread postAuthor: BOMBOMBOMB » Fri Oct 26, 2007 7:25 am

lol under extreme pressure they can :P
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Unread postAuthor: jimmy101 » Fri Oct 26, 2007 1:55 pm

Collo wrote:Place one water baloon inside another doubleing the wall thickness this shoud withstan the pressure of launch

But "pressure of launch" is not an issue. If the balloon is adequately supported there is really no pressure on the balloon, even when it is pulling a couple hundred Gs as it accelerates down the barrel. The balloon will fail if it rubs against the barrel. Even multiple layers of balloon probably won't help that.
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Unread postAuthor: psycix » Fri Oct 26, 2007 3:55 pm

jimmy101 wrote:
Collo wrote:Place one water baloon inside another doubleing the wall thickness this shoud withstan the pressure of launch

But "pressure of launch" is not an issue. If the balloon is adequately supported there is really no pressure on the balloon, even when it is pulling a couple hundred Gs as it accelerates down the barrel. The balloon will fail if it rubs against the barrel. Even multiple layers of balloon probably won't help that.


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Unread postAuthor: Redcoat » Fri Oct 26, 2007 4:47 pm

Either that, or do what everyone says, make a SABOT cup style thing.

It would work very well. In fact I might try it with my combustion this afternoon.
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Unread postAuthor: BigGrib » Fri Oct 26, 2007 6:14 pm

I think the main thing is the sabot will be fine but what happens when the balloon leaves the sabot and the water inside is gonna wanna centrifugally disperse and tear apart the balloon, even a doubled up deal might not even be able to prevent that. and if you beef up the balloon enough to not break during flight it probably not break upon impact. i dont know.
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Yea, that's definitely going to get you at least a tazer.

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