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Fist results with the Trom-Boyn

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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Fist results with the Trom-Boyn

Unread postAuthor: boyntonstu » Fri Dec 18, 2009 10:39 pm

Using 200 psi my new break barrel shot a 10d dart through 3" of phone book and through a 5/8" sheet of plywood behind it.

Audacity from my 1 foot chrony. How fast was it?
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Unread postAuthor: rp181 » Fri Dec 18, 2009 10:52 pm

fast.
Thats all we can say with a picture.
Highlight the beginning of the first peak to the begining of the second peak. audacity tells you the length in seconds at the bottom.
1/x=time
x=speed in fps
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Unread postAuthor: CpTn_lAw » Sat Dec 19, 2009 4:35 am

I' d say roughly 650-700 fps according to your file...took 0.0015 second to make 1 foot, ==> ~667 fps.
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