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My Hybrid...need help!!

Post questions and info about hybrid (compressed gas with fuel) powered cannons here. This includes discussion about fuels, ratios, ignition systems, build types, safety, and anything else relevant.
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Unread postAuthor: SpudBlaster15 » Tue Jun 05, 2007 1:44 pm

If the hypothetical tank was made of CHEAP steel, it would burst at around 800psi.

This is calculated using the formula FS*(2*WT)/ID, where FS = Fatigue strength of the steel, WT = Wall thickness, and ID = Inside diameter.
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Unread postAuthor: spudthug » Tue Jun 05, 2007 2:20 pm

ok thanks sb15..when my mom gets home ill post the real thickness... shouldi post it or should i pm u??
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4" piston valved cannon-half done..( i spilt my cement...)

Hybrid- 75% done. need to build propane holder and drill/tap sparkplug hole..
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Unread postAuthor: SpudBlaster15 » Tue Jun 05, 2007 2:29 pm

Whichever you feel like doing is fine with me.
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