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DDT video!!!

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: SpudFarm » Sun Mar 16, 2008 6:56 am

potatoflinger: i posted the video to show the difference between deflagration and detonation.
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Unread postAuthor: D_Hall » Sun Mar 16, 2008 12:31 pm

spudfarm wrote:potatoflinger: i posted the video to show the difference between deflagration and detonation.
\

Heh, we have a rule of thumb at the office (For those not aware, my day job is testing rocket motors for the military.)....


If you walk up to your test stand and it's damaged but you can repair it; that was a case failure.

If you walk up to your test stand and it's damaged beyond repair; that was a deflagration.

If you walk up to your test stand and... you can't *find* your test stand; that was a detonation!
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Unread postAuthor: SpudFarm » Sun Mar 16, 2008 1:48 pm

haha, that was pretty much "just another day at the office" :D
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Unread postAuthor: jimmy101 » Sun Mar 16, 2008 2:42 pm

Is the brief flash after each detonation caused by suck back through the exhaust pipe?
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Unread postAuthor: potatoflinger » Sun Mar 16, 2008 2:44 pm

spudfarm wrote:potatoflinger: i posted the video to show the difference between deflagration and detonation.

I was just posting the fast one for those that are interested.
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