posted January 04, 2000 12:06 AM         

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I was surfing net today, and bumped into this cool website with video clips of this guy playing with his flamethrower. Now I am very anxious to make one of my own, but I need to have some sort of information, instruction, digram, etc. to assist me on this project. If anyone in here know how to make one of those, please reply to this post. Thank you.

Related Link: http://www.wrpd.org/~spamgod/black.shtml

posted January 05, 2000 05:14 AM            

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I tried using a super soaker, but I ran
into a problem: The gasoline would dissolve
the plastic seals in the gun. As a result,
the connection between the big green thing
that held the liquid and the intake would
leak gas. I believe that the nozzle where
it shot out leaked, too. It eventually
dissolved so much that it could not shoot
anymore.

I used a coat hanger with a piece of cloth
taped underneath the barrel. That was used
to ignite the gas, but the flames did not
look anything like that guy. Mine were
skinny and pathetic.

posted January 05, 2000 03:28 PM            

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there's a link on mega's page (under links--Wild Eyed Psycho) to a flamethrower--apparently using compressed air... maybe like they use for paintball? i dunno all my friends that play paintball had no clue how much their air tanks were pressurized.
http://www.angelfire.com/co/WildEyedPsycho/images/Flamer.jpg

~m3nth~

posted January 10, 2000 12:36 PM            

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I have spoken to the guy who made it, and this is what he told me:

I'm using liquid propane to pressurize the gasoline. Then
I'm taking a feed of the propane line to run the pilot.

This is all i could get out of him...... He doesn't use any compressed air, just high pressure propane. Way cool!

posted May 24, 2000 01:42 PM         

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a couple points...

the flamethrower is not military issue. it is homemade. there's no hose and no backpack. it's totally selfcontained. i've added some large quicktimes of it on action. this should allow you to get a better idea of it's size and range.

i will answer some questions about it, but please no requests for plans.

the new url is www.monkeyhands.com/~spamgod/black.html

enjoy!

spamgod

posted May 24, 2000 02:18 PM         

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I heard somewhere that it is safer with non flammable pressurizing gases like Co2 (paintball) or compressed air (bike pump, compressor) probably you could use inverted 2"x24" galvanized steel piping so theres no need for siphons.

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Look Ma No Hands! (there over by the shed)

posted May 24, 2000 07:30 PM         

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alright I just realized (with VeHemt's help)that the space between the gas line and the top would have a fuel air mixture meaning...boom, unless you have a flawless orifice cup so maybe propane would be better but I dont own a threading machine and those little butane cartridges dont hold that much. so maybe a quad bulbinator type design but it would be a pain
to have to keep changing those bulbs, meaning a big "run price" but man would it be worth it

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Look Ma No Hands! (there over by the shed)

posted May 24, 2000 09:25 PM            

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Andys page :http://www.xinventions.com/home.htm

had plans for a high power water gun. If you make it out of Al pipe or even steel pipe(if you could lift it) and filled it with gas, it would make a fine flame thrower. Just an idea.

posted May 24, 2000 10:17 PM            

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First of all: Many people are suggesting that any flammable substance will work. That is not so. As anyone who has worked with flamethrowers knows from experience, and as any chemical engineer will tell you, flammable substances have something called a “flame propagation velocity”, which is a product of their volatility and molecule reactivity. Ethanol and Methanol both have very low flame propagation velocities which means that if they are loaded into a flamethrower and sprayed into a flame, the liquid will be moving faster than a flame can move in it and hence it will actually put the fire out. Petrol is one of the few substances that has a high enough flame propagation velocity and is stable enough to be used for flamethrowers.
Secondly, I am willing to bet that I know what that flamethrower is. It looks *just* like your average water (class A) fire extinguisher, substituting the water refill for petrol, and using the CO2 pressurisation it has built in to expel the petrol into a flame. I remember thinking this 3 years ago when I first saw that picture and trying it out. Indeed, your regular water fire extinguisher will easily make a 15meter + long tongue of fire when loaded with petrol and discharged through a flame. It empties way too fast though, but it’s a very simple thing to do. It’s a great way to get burned to death to, for all of you that are thinking of trying it out, let me tell you that it doesn’t take much for your fun to become tragedy with these.
Finally, the air in that air/fuel flamethrower design would NOT form an explosive fuel air mixture so long as the tank had any liquid in it (the liquid would saturate the solution). However the design is ridiculous in that it asks for 2000PSI, which would be near impossible to contain and would cause all sorts of problems. CO2 pressurisation goes at 800PSI max (at which point the CO2 becomes a liquid and pressure stops increasing). However air pressurisation is a dumb idea because when the fuel is over and it starts to purge air there will come a point where the mixture is explosive.

P.S. Liquid Butane/Propane welding mix works too. I built a flamethrower with a backpack containing 500mL of liquefied welding gas (not the acetylene sort of course) and a metal burner with handle, valve, and lighter. The pressure in the welding gas tank is high enough that you can burn half a litre in 20 seconds and make a flame 4 meters long and 1 meter wide. It is so hot that the 1 meter long burner was barely enough to prevent me from being burned by the radiated heat. I used it to kill insects in summer, as the gas flame did not make any surface it touched become carbon black).

posted May 24, 2000 11:48 PM         

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well.... no

my flamethrower is pressurized by propane which as the excerpt from my email states is
handy since it provides fuel for the pilot light.

the entire unit is quite small and very portable. fits in backpack which made it handy for carrying on my motorcycle.

one benefit of using a flammable gas to pressurize the fuel (in the case of this image, this was a mixture of unleaded and diesel) is the amazing sound/light/heat/noise you get when jetting flaming propane and gasoline. i have nice video sequence of a spinning vortex of flame coming out of the flamethrower. i'll add this to my webpage when have a chance to digitize it.

posted May 25, 2000 06:50 PM            

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You know the pictures are all fine and good to the people on this forum if they just want to see shit. I'm sure i'm not alone... but i'd rather be doing than watching. Why torment us with the pictures, and not give up any help on the plans??

Sorry all it does is make us want something more... your not being of any help in our making one of our own.

Thats just my two cents.

BaDSeeD

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Knowledge is the true power, ignorance will bring your demise.

posted May 25, 2000 09:59 PM            

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The IWbook in the forum library can help you with the fuels needed for a flamethrower. Straight gas or diesel/gas gives a nice flame, but no on-target burn time. That's what causes the real damage.

It also gives some background on flamethrower design, but no plans unfortunately.

Dude, about the flamethrower, either post the plans, or sell them. Teasing isn't nice.

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"The knowledge that they fear is a weapon to be used against them."

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