The Black Ops

Boom! The classic potato gun harnesses the combustion of flammable vapor. Show us your combustion spud gun and discuss fuels, ratios, safety, ignition systems, tools, and more.
RedAplle
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Tue Jan 22, 2008 8:07 am

Hello,
I'm new on this so nice forum :D.
So my name is Tom, I'm 16 and I'm living in New-Caledonia (in the South Pacific :P).
So the "Black Ops" was my first spud gun (I made it a month ago) (I have 2 pneumatics -I'll show those later-).
Sorry for my bad english, but I'm french ^^.

Black Ops

Dimensions:

Barrel: 1200 mm lenght, 40 mm of diameter
Chambre: 325 mm lenght, 100 mm of diameter

Features:

- Electronic igniter
- Ventilation system, with an LED and a switch
- Bullpup style
- Hilt with a PB to shoot
- Can be used as pneumatic, just by changing the barrel
- Power, noise and recoil are enormus B)
- Painted in black
- 1.7 of ratio (when used as combustion spudgun)


Performances:

Total range: when used as combustion, about 350 meters with a potato


Photos:


The combustion chamber :

Image

The electrods and the ventilator :

Image

The ventilator outside the chamber :

Image

The system to use it as pneumatic (I can put 50 PSI, not more) :

Image

Videos:

A test shoot : http://youtube.com/watch?v=kdHHoefHsEo

That's all, I hope you enjoyed it :P.

PS : Say me if you don't understand some words (I'm french... :/).
Kiwi
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Tue Jan 22, 2008 8:17 am

hey...

Nice spudgun...;)

Is it powerfull as pneumatic cannon?
RedAplle
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Tue Jan 22, 2008 8:30 am

Ahahah you know it isn't !
It shoots at 350 meters (powerfull toughts), but a pneumatic with the same size will shoot over than a km ahaha.
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Hotwired
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Tue Jan 22, 2008 9:17 am

A km with a cannon that size is unlikely :lol:

It's all very nicely put together, the cut down fan for the chamber looks like something I'd like to have on my desk :)

Where did you find how to make a spudgun by the way?
RedAplle
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Tue Jan 22, 2008 9:35 am

I'm sure you can shoot at over a km with the same size with high pressure rated PVC... (if you put like 250 PSI in it)..

I saw for the first time spud guns with Youtube, and then I wanted to make mine...
I learnt with forums (patator.frbb.net -french forum ^^-).
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psycix
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Tue Jan 22, 2008 10:41 am

Nice cannon, I like what you did with your fan :)
Though I prefer to keep the frame around it so I can squeeze the fan in and that its held by friction.

Also, its nice that you can also use it as a pneumatic.
Why can you only do it up to 50 PSI pneumatic??

Now build one of steel and combine the two at the same time (hybrid) :D
Till the day I'm dieing, I'll keep them spuddies flying, 'cause I can!

Spudfiles steam group, join!
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STHORNE
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Tue Jan 22, 2008 5:44 pm

pretty cool, nice job on the outside of the combustion chamber (with the paint and military look).

also, whats that green light on the top for?
RedAplle
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Tue Jan 22, 2008 8:45 pm

Why can you only do it up to 50 PSI pneumatic??
Because it's in PVC, and it's not pressure rated...

The green light is the LED for the fan :D.
When the fan is turning, the LED is lighting :P.
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