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Hybrid ThorJack

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: Petitlu » Sun Apr 29, 2012 3:23 pm

my chamber is made of aluminum.....
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Unread postAuthor: RJB INDUSTRIES » Sun Apr 29, 2012 3:28 pm

And in cases like this a lining isn´t necessary....


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Unread postAuthor: Fnord » Sun Apr 29, 2012 3:30 pm

Are you sure, it isolates the IR?


Yes, a mirror finish on copper will reflect something like 99% of IR light in the wavelengths commonly associated with 'heat'. Gold will usually be a little better, but obviously it's not worth the extra cost.
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Unread postAuthor: jackssmirkingrevenge » Mon Apr 30, 2012 12:24 am

RJB INDUSTRIES wrote:A Polished aluminium/copper chamber lining?

Are you sure, it isolates the IR?


A little experiment you can try yourself, cut the top off a aluminium soft drink can, fold away the edges of the cut so you don't hurt yourself and stick your fingers inside, you will be amazed how hot they get as the heat normally lost to the atmosphere is reflected back.
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Unread postAuthor: Petitlu » Mon Apr 30, 2012 3:05 am

So as my chamber is aluminum, not need insulation inside! :D
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Unread postAuthor: jackssmirkingrevenge » Mon Apr 30, 2012 3:36 am

As long as its shiny ;)
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Unread postAuthor: Petitlu » Mon Apr 30, 2012 3:54 am

I'll polish by hand! :D
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Unread postAuthor: jackssmirkingrevenge » Mon Apr 30, 2012 4:10 am

Petitlu wrote:I'll polish by hand! :D


Your hand fits inside the chamber :?

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Unread postAuthor: Petitlu » Mon Apr 30, 2012 4:13 am

humor my friend! :wink:
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Unread postAuthor: Petitlu » Mon Apr 30, 2012 4:46 am

I make a camera support
to film my shooting with Thorjack and my other PAC

[youtube]http://www.youtube.com/watch?v=v2e6vbou4mI[/youtube]
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Unread postAuthor: jackssmirkingrevenge » Mon Apr 30, 2012 5:16 am

hehe cool! did you receive the EX-FC100 yet?
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Unread postAuthor: Petitlu » Mon Apr 30, 2012 5:23 am

not yet ...
I look forward to testing!
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Unread postAuthor: Crna Legija » Mon Apr 30, 2012 5:29 am

didn't look like you shot them but i would take the video down now its againt that rules to shoot animals just a fyi
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Unread postAuthor: jackssmirkingrevenge » Mon Apr 30, 2012 5:33 am

Crna Legija wrote:its againt that rules to shoot animals just a fyi


... but nothing against filming them through a crosshair, seems legit to me.
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Unread postAuthor: pneumaticcannons » Mon Apr 30, 2012 5:37 am

ahh, it doesn't matter man, he didn't even have the gun attached...

Cool petitlu! looking forward to seeing more. ninjad? lol im watching tv
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