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Noob checking in...pics of my cannons (combustion)

A place to ask general spud cannon related questions.
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Noob checking in...pics of my cannons (combustion)

Unread postAuthor: mywifehatesguns » Tue Oct 24, 2006 8:23 pm

Just figured I would say hi and ask a quick question. Below are my first and only cannons. I have been using different types of aerosol, but only getting about 100 yards. If I upgrade to propane or MAPP how much more distance can I expect? Thanks.

BTW, it is a 1.5" barrel, 3 feet long. 4" chamber, 12" long. BBQ grill ignitor.
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spudguns.jpg
Big Brother 36" barrel, 1.5" diam

Little Brother 12" barrel, 0.5" diam
Last edited by mywifehatesguns on Wed Oct 25, 2006 5:33 pm, edited 1 time in total.
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Unread postAuthor: SpudStuff » Tue Oct 24, 2006 8:53 pm

Very Nice. I especially like the blue. You shouldprovide some specs and then it can be antered in the build off compitition.
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Unread postAuthor: Pete Zaria » Tue Oct 24, 2006 10:27 pm

I don't know about distance, but I've tested cheap hairspray etc... vs propane by the hang time of a golf ball fired (almost) straight-up. Metered propane yeilded 6-8 sec more hang time, however, I think this was because the meter system delivers a perfect fuel/air ratio, as where aerosol you're just guessing. I think the difference in power is mostly due to a correct fuel/air ratio rather than a more powerful fuel. Before I built a propane meter, I'd use a half or 3/4th second long spray of car starter fluid, which worked a lot better than hairspray.

Peace,
Pete Zaria.
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Unread postAuthor: Gorillajoe » Mon Dec 11, 2006 6:18 pm

Clean and simple, good job.
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