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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 22, 2012 12:22 pm

one shot today because of rain ...
spark plug works very well!
Jack it is clear that the dart arrived right!

[youtube]http://www.youtube.com/watch?v=NxKsO-Bys7M[/youtube]
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Unread postAuthor: Labtecpower » Sun Apr 22, 2012 12:27 pm

very nice! :)

really need to get my hybrid working again...
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"ñøw mÿ šįg šüçkś!"
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Unread postAuthor: Petitlu » Sun Apr 22, 2012 12:31 pm

Thank you!
I understand for your hybrid!:D
How to mix you shoot with?
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Unread postAuthor: jackssmirkingrevenge » Sun Apr 22, 2012 12:54 pm

haha nice!

So that went through two layers of 2mm steel before ricocheting off the 8mm steel beam, yes?

It's clear that yes, the fin is flying straight and true. Still too damn quiet though hehe
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Unread postAuthor: jakethebeast » Sun Apr 22, 2012 1:06 pm

Soo... how the h*ll it is so quiet? :D sorry i haven't read the whole thread :?
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Unread postAuthor: Petitlu » Sun Apr 22, 2012 1:11 pm

yes it passed through the 2 layers!
impact on the steel beam is more profound than the first test!
noise is a mystery! :D
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Unread postAuthor: jackssmirkingrevenge » Sun Apr 22, 2012 1:17 pm

Petitlu wrote:yes it passed through the 2 layers!
impact on the steel beam is more profound than the first test!


Probably because the box section kept the projectile steady.

The impact mark is similar to the one from my test.

noise is a mystery! :D


the only explanation I can think of is the low C:B ratio...
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Unread postAuthor: RJB INDUSTRIES » Sun Apr 22, 2012 1:34 pm

What you think about use low mix but H2 as a fuel?


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Unread postAuthor: Petitlu » Sun Apr 22, 2012 1:39 pm

H2 seems dangerous ... ... :(
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Unread postAuthor: wyz2285 » Sun Apr 22, 2012 2:03 pm

Through the C:B ratio, this thing should have a simular noise of a .50, as he uses a .50 rifle barrel...
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CpTn_lAw wrote::D "yay, me wanna make big multishot pnoob with 1000 psi foot pump compressor using diamond as main material. Do you think wet bread make good sealant? " :D
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Unread postAuthor: RJB INDUSTRIES » Sun Apr 22, 2012 2:08 pm

Why do you think H2 dangerous?


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Unread postAuthor: Petitlu » Sun Apr 22, 2012 2:16 pm

Hydrogen is not faile to obtain and is more energy than butane.
I see no interest in hydrogen if we mix a lower BP by using the ...
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Unread postAuthor: jackssmirkingrevenge » Sun Apr 22, 2012 2:19 pm

wyz2285 wrote:Through the C:B ratio, this thing should have a simular noise of a .50, as he uses a .50 rifle barrel...


Using a 50 calibre barrel has no bearing on the noise - besides for this shot he used a 12mm smoothbore.

Why do you think H<sub>2</sub> dangerous?


Hydrogen has a much wider ignition range in terms of percentage concentration, which makes it easier to use but also easier to have an accident with. Also, you can't get significant mixes with hydrogen at atmospheric pressure.
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Unread postAuthor: Petitlu » Sun Apr 22, 2012 2:28 pm

this shot is also testing the new barrel with the system that holds the projectile.
And alignment of the muzzle brake is well! :D
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Unread postAuthor: RJB INDUSTRIES » Sun Apr 22, 2012 2:31 pm

I can easly get high mixes with H2, see my topic H2 REACTOR on the Recent Topics.

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