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huge polish cannon

Post questions and info about combustion (flammable vapor) powered cannons here. This includes discussion about fuels, ratios, ignition systems, safety, and anything else relevant.
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huge polish cannon

Unread postAuthor: gabeb123 » Mon Sep 21, 2009 8:48 pm

me and a buddy where talking and would it be possible to build a polish cannon out of 55 gallon drums and shoot a exersice ball out of it or would the 55 gallon drums be way too thin
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Unread postAuthor: brogdenlaxmiddie » Mon Sep 21, 2009 8:51 pm

Stop being a dorkweasel and get your head out of your bum. :)

Think son, think. If your not capable of conceiving the relative forces for that cannon, then you 'ought not be buildin' her. :roll:
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Unread postAuthor: gabeb123 » Mon Sep 21, 2009 9:03 pm

thats what i was saying i was putting it here pretty much to make a point to my buddy i hope this will keep him from blowing himself up
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Unread postAuthor: brogdenlaxmiddie » Mon Sep 21, 2009 9:05 pm

Wow, still a fail... Dude, I recommend starting off with something small like a regular 'ol spray and pray. 1 foot x 3" chamber and a 3 foot by 2" barrel.
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Unread postAuthor: gabeb123 » Mon Sep 21, 2009 9:12 pm

allready done it i allso got a pneumatic and a regular polish cannon
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Unread postAuthor: jackssmirkingrevenge » Mon Sep 21, 2009 9:41 pm

Whenever I read "polish cannon" I cannot but think of this unfortunate AC-119 Stinger nose art...
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Unread postAuthor: Moonbogg » Mon Sep 21, 2009 9:47 pm

I say go for it. I see nothing at all wrong with using a steel barrel to launch excercise balls.
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Unread postAuthor: jackssmirkingrevenge » Mon Sep 21, 2009 10:15 pm

Moonbogg wrote:I see nothing at all wrong with using a steel barrel to launch excercise balls.


I have (unfortunately) seen sealed steel drums rupture violently due only to volatile solvents inside expanding as a result of solar heat, bowing out and tearing at the seams. They're tough, but internal surfaces are large and there's a lot of force imposed on them even with low pressure.

Not saying this won't work, but caution should be exercised
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Unread postAuthor: Moonbogg » Mon Sep 21, 2009 10:24 pm

Yeah thats a good point. Remote detonation highly suggested. No hand helds :lol:
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Unread postAuthor: jackssmirkingrevenge » Mon Sep 21, 2009 10:28 pm

Moonbogg wrote:No hand helds :lol:


That would certainly be amusing, to distant onlookers at least :D
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Unread postAuthor: ramses » Tue Sep 22, 2009 3:20 pm

You could wrap the tanks in fiberglass. and it would be amusing to see someone hand hold the cannon.
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Unread postAuthor: Moonbogg » Tue Sep 22, 2009 3:28 pm

Screw it, go shoulder mounted and make if 3 barrels long.
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Unread postAuthor: gabeb123 » Tue Sep 22, 2009 3:36 pm

ya cuz everyonr can carry those lol no im pretty sure that you might get a shot out of it but i think it is extremely dangerous. today my buddy said if ill help him make it he will supply the barrels and shoot it but i dont think he will be able to get 2 more barrels but if he does ill try to take pictures and post them because that would be really cool looking
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Unread postAuthor: Technician1002 » Tue Sep 22, 2009 8:23 pm

gabeb123 wrote:ya cuz everyonr can carry those lol no im pretty sure that you might get a shot out of it but i think it is extremely dangerous. today my buddy said if ill help him make it he will supply the barrels and shoot it but i dont think he will be able to get 2 more barrels but if he does ill try to take pictures and post them because that would be really cool looking


If you do make one, video would be awesome. :D
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Unread postAuthor: gabeb123 » Wed Sep 23, 2009 3:58 pm

i know wouldnt it :) it will take a lot of time and rods to weld it up though
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