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Sound barrier

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
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Can you sent something supersonic with ONLY compressed air?

Yes! Ive done it!
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I havent done it, but I think its possible...
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I have absolutely no clue
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7%
I dont think so...
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7%
 
Total votes : 14
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Unread postAuthor: frankrede » Thu Dec 04, 2008 12:50 am

Size doesn't matter when it comes to velocity.
You can get high velocities with smaller cannons even easier.
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Unread postAuthor: jackssmirkingrevenge » Thu Dec 04, 2008 1:08 am

frankrede wrote:Size doesn't matter when it comes to velocity


In terms of calibre, yes, but barrel length and chamber size are very relevant factors in the velocity department, it's very much the case of "as big as you can afford".
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