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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: jackssmirkingrevenge » Sun Apr 22, 2012 2:55 pm

RJB INDUSTRIES wrote:I can easly get high mixes with H2, see my topic


Not saying it can't be done, personally I prefer syringe injection at atmospheric pressure but manometric metering is of course possible.
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Unread postAuthor: Petitlu » Sun Apr 22, 2012 3:05 pm

butane / propane works very well, so I do not see the advantages of H2 :roll:
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Unread postAuthor: RJB INDUSTRIES » Sun Apr 22, 2012 3:25 pm

The burn rate of H2 is incomparably bigger than the butane´s is.

2 C4H10(g) + 13 O2(g) → 8 CO2(g) + 10 H2O(g) + energy that is lower than the powerful H2 combustion:
2 H2(g) + O2(g) → 2 H2O(l) + 572 kJ (286 kJ/mol)

H2 is the future....



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Unread postAuthor: Petitlu » Sun Apr 22, 2012 3:38 pm

but the future is pricey ..
the Thorjack is my first hybrid, so I started and butane enough.
In addition I make a Mix200! :D
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Unread postAuthor: RJB INDUSTRIES » Sun Apr 22, 2012 3:46 pm

mix200 with butane? What were the results?


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Unread postAuthor: MrCrowley » Sun Apr 22, 2012 3:48 pm

He hasn't tried 200x yet.

Considering Petitlu is using butane/propane instead of <s>propane or</s> MAPP gas, I doubt he is too concerned with using a better fuel in his hybrid like H2.

edit: see below :wink:
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Last edited by MrCrowley on Sun Apr 22, 2012 3:56 pm, edited 2 times in total.
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Unread postAuthor: Petitlu » Sun Apr 22, 2012 3:50 pm

This is an not finished project, here is the link:
http://www.spudfiles.com/forums/p-mix200-t24132.html

I use a butane / propane
The MAPP is not more powerful ....
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Last edited by Petitlu on Sun Apr 22, 2012 3:53 pm, edited 1 time in total.
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Unread postAuthor: jackssmirkingrevenge » Sun Apr 22, 2012 3:52 pm

MrCrowley wrote:Considering Petitlu is using butane instead of propane or MAPP gas, I doubt he is too concerned with using a better fuel in his hybrid like H2.


Actually he's using a butane/propane mix which seems to be the norm for "camping gas" in Europe.
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Unread postAuthor: Petitlu » Sun Apr 22, 2012 3:54 pm

yes ! :D
can also have as butane !
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Unread postAuthor: RJB INDUSTRIES » Sun Apr 22, 2012 4:22 pm

That´s our camping gas....
I want build a 20 mix H2 air and see how it goes....


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Unread postAuthor: Petitlu » Sun Apr 22, 2012 4:27 pm

you need good materials strong
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Unread postAuthor: RJB INDUSTRIES » Sun Apr 22, 2012 4:30 pm

Yes I will weld this time, not couple pieces


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Unread postAuthor: Petitlu » Mon Apr 23, 2012 11:34 am

I attacked the Thorjack look, I made the sliding guides of the barrel, the handle being fixed over and above the firing handle.
The interuptor by side is a security, with the thumb on the scale interuptor and we are ready to shoot!

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Unread postAuthor: jackssmirkingrevenge » Mon Apr 23, 2012 11:38 am

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Just saying :)
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Unread postAuthor: Petitlu » Mon Apr 23, 2012 11:45 am

I thought this switch but they are pricey and too big!
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