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Combustion chamber?

A place to ask general spud cannon related questions.
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Combustion chamber?

Unread postAuthor: cannon » Tue Jul 19, 2005 9:27 am

I have a 4 foot by 2.5 inch piece of drain pipe as a barrel and i am stuck on what to use for a combustion chamber, what would be the best thing to use?

thanks in advance

cannon :)
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Unread postAuthor: darthtator » Tue Jul 19, 2005 1:58 pm

Well, a 5"piece of sch. 40 pipe 10 inches long will give you a c:b ratio of .877:1, that should do fine or you could go with a piece of 4" sch. 40 that is 15 inches long and give you a ratio of .836:1 which is also good.
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Unread postAuthor: iamthewalrus » Tue Jul 19, 2005 6:07 pm

and if thoughs 2 sizes cost to much, 20" of 3" pipe will give u a .858 C:B ratio.
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