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What will they think of next...

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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What will they think of next...

Unread postAuthor: MrCrowley » Mon Jan 18, 2010 4:18 am

Anyone heard of things like these?
http://www.trademe.co.nz/Business-farmi ... 617916.htm

The Ultimate in Pest Control.

The Rodenator R3 uses a proprietary method to proportion, compress and inject the gas mixture in to the tunnels of burrowing pest animals. The mixture of the gases is at a very low rate of liquefied propane gas (LPG) and compressed oxygen (O2).

This mixture produces a compressed ratio of LPG and oxygen at a consistent measured pressure into the tunnel system. Upon combustion, the resulting concussive force or shockwave travels throughout the tunnel system at over 10,000 psi. The resulting massive concussion is sufficient to humanely exterminate the targeted pest.
It will often collapse the tunnel system to render it un-useable to any future tenants.

The new R3 model is activated from a switch on an 8m lead to make it very safe and user friendly.

The combustion of LPG and Oxygen produces carbon dioxide (CO2) and water vapor and is non-toxic to the environment.

The package includes;(See Photo)
- 15m twin gas hose
- LPG regulator and gauges
- Oxygen regulator and gauges
- Safety goggles
- Ear muffs


Certainly is interesting.

Just to be clear, this is a commercial product used for extermination much like an air rifle. As long as we don't discuss about using spudguns in this manner, i'm sure we will stay clear of a locked thread.
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Unread postAuthor: jackssmirkingrevenge » Mon Jan 18, 2010 4:22 am

Fascinating :) instant roast rabbits ;)

If I'm not mistaken they used this idea in Vietnam to clear out VC tunnels, and they also use long plastic bags with a fuel/air mixture for minefield clearance, creating an overpressure which sets off the mines.
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Unread postAuthor: MrCrowley » Mon Jan 18, 2010 4:28 am

Sounds like a great excuse to blow up my yard!
I'm a little surprised it's legal though because combution cannons are illegal in NZ. If you put some drain pipe at one end of the tunnel with a diameter about that of a rabbit... :roll:
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Unread postAuthor: chinnerz » Mon Jan 18, 2010 6:09 am

hahaha, ive heard of using a pneumatic to unblock a kitchen sink, but this is just nuts!!
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Unread postAuthor: psycix » Mon Jan 18, 2010 7:49 am

Pest control by means of a gas explosion. Cool.

chinnerz wrote:hahaha, ive heard of using a pneumatic to unblock a kitchen sink, but this is just nuts!!

Reminds me of emptying 10L @ 30 bar into a hole in the wall at a friends house. Since then we didn't hear noises in the wall anymore. :roll:
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Unread postAuthor: MrCrowley » Mon Jan 18, 2010 7:53 am

psycix wrote:
chinnerz wrote:hahaha, ive heard of using a pneumatic to unblock a kitchen sink, but this is just nuts!!

Reminds me of emptying 10L @ 30 bar into a hole in the wall at a friends house. We didn't hear noises in the wall again that night. :roll:

Surprised you still have a wall :P

BTW, did bullrees' kid put the hole in the wall for you? :D
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Unread postAuthor: Ragnarok » Mon Jan 18, 2010 1:37 pm

chinnerz wrote:hahaha, ive heard of using a pneumatic to unblock a kitchen sink, but this is just nuts!!

Actually, it's probably more sane. You likely want the tunnels collapsed anyway, it's efficient, effective and very discriminatory.

That is, it'll only kill whatever's in the tunnels (as opposed to using poisons, which will be eaten by other animals, either directly or indirectly - and which probably wouldn't have enough effect.)

Unblocking a sink with a pneumatic might well damage the drain - it's not pressure piping. After all, it is why they call it DWV - Drain, Waste and Vent.

As far as solutions to rabbit problems, personally, I want to see the day they bring this one onto the market.
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Does that thing kinda look like a big cat to you?
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Unread postAuthor: Gippeto » Mon Jan 18, 2010 2:26 pm

These things have been around for awhile.

Looks like great fun, but I've heard about guys starting BIG (as in call the fd..out of control) grass fires with them.

[youtube]http://www.youtube.com/watch?v=GrGnW0KLFZk[/youtube]
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Unread postAuthor: john bunsenburner » Mon Jan 18, 2010 2:29 pm

force or shockwave travels throughout the tunnel system at over 10,000 psi


Really...

As for poisons, in NZ the the poison used to kill the possums can't really harm much, as the only animals that might eat dead possums are invasive as well so it is both directly and indirectly doing its job. (Just as an example for cases in which poison is not all bad)...

As for this, i have my doubts about how humane it really is, as EVEN if the shock wave is 10 000psi strong the holes tend to be fairly large and the pressure will reduce, so there is a good enough chance a rabbit is knocked out and then suffocates as it is buried alive...
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Unread postAuthor: psycix » Tue Jan 19, 2010 7:18 am

MrCrowley wrote:Surprised you still have a wall :P

BTW, did bullrees' kid put the hole in the wall for you? :D

No, the hole was made by a rodent.

Actually, blowing out the whole wall (it was a weak, hollow wall) was my second intention. He would be expanding his house so that wall had to go anyway.
Too bad it didn't work. Next time I'll use a QEV. :D
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Unread postAuthor: Hubb » Tue Jan 19, 2010 8:35 am

chinnerz wrote:hahaha, ive heard of using a pneumatic to unblock a kitchen sink, but this is just nuts!!
I've done it, and now, to complete the collection of alternative launcher uses I will have to get one of these for "pest control".
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