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Country Discussion Topics
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Ever Built a Cannon?
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Texas    Posted 11-23-2004 at 11:13:44       [Reply]  [No Email]
Dont try this at home kiddos...

I built a cannon for my personal enjoyment. Mainly the noise factor as the smooth bore pipe I used for a barrel isnt designed for much in the way of accuracy.

I took a piece of 2 7/8" tubing about 7' long and capped one end (welded) with a piece of 1/2" plate. I mounted this on a set of iron wagon wheels I had laying around.

About 3" inches up the pipe from the capped end I drilled a 3/8" hole. This hole is for adding propellant (see below) About 14" up from the capped end I drilled another 1/2" hole through both sides of the pipe, inserted a 1/2" rod and welded the ends in place. this rod keeps what ever projectile Im using from sliding to far down.

Take a tennis ball and drop her down the barrel....ramrod it all the way to 1/2" stop rod if you have to.

Light your oxy/acetylene torch and set it as if you were going to cut heavy steel...a nice blue flame. Take a leather glove and slap the flame out leaving the mixed gas flowing. Insert the torch tip into the 3/8" hole for about 5 seconds....withdraw torch and relight it...pass lit torch over 3/8" hole. The resulting launch of the tennis ball and noise to wake the dead is quite impressive.

In a pinch, hairspray or propane can be used for propellant.

Depending on your welding skill..I wouldnt stand behind that welded cap on the pipe.

I do recommend hearing protection and safety glasses.

Texas in no way endorses the construction nor use of this described toy and is not responsible for any individual who follows these crude outlines, or any injury to said individual. Darwins law shall apply! :)


Bob    Posted 11-23-2004 at 19:31:03       [Reply]  [No Email]
Old used shock absorbers wrapped in enough electrical tape to fit the "barrel" make great projectiles!

(Don't try this at home, kids!)


Willy-N    Posted 11-23-2004 at 18:38:59       [Reply]  [No Email]
I know a freind who made a Cannon that fired with compressed air. It had a air dump valve and a tank he would charge up. What he shot was coke cans filled with concrete! That baby would blow the can thru a car door with no problem and leave a BIG HOLE!!! It was loud and very effective made a 44 Mag look like a joke on a car door. Mark H.


mud    Posted 11-23-2004 at 14:01:28       [Reply]  [No Email]
a beach town in deleware (rehotbeth?) has a pumpkin chuckin contest every year. some of them cannons can shoot a big pumpkin a scary distance.
some use compressed air.

i know a boy that built a spud blaster using pvc pipe fittings and a disposable lighter ignightor that would shot a spud 200 yards with enough accuracy to hit a sheet of plywood darn near every time. punched holes in 1/2" cdx like it was cardboard.


screaminghollow    Posted 11-23-2004 at 12:09:27       [Reply]  [No Email]
There used to be a fella tht had a little foundry, I believe called the peach Bottom forge, he also ran some sort of little museum. He would cast bronze and iron cannon barrels and sell the castings for those adventurous souls who wished to make neise. I got a cute little 32 inch barrel with a one inch bore. I made a naval style cart for it and located a one inch leather punch so I could punch out leather wads to load and make noise. Even made the little bucket and loading ram on my lathe. About 200 grains of FG and a couple of 1/4 inch leather wads soaked in motor oil and then let dry, work just fine. Accidentally broke a window from a third of a mile away once. Also bought one a real cannon, it was used for starting sail boat races on Lake Erie in the old days, .75 cal, all cast iron, even the carriage. Fires ten ga shotgun wads for noise and ball bearings for serious knocking about the woods.



Bkeepr    Posted 11-23-2004 at 11:53:23       [Reply]  [No Email]
Used to do something similar with lighter-fluid and metal tennis ball cans.

I remember one Army-Navy game when we bombarded Navy's midshipmen with tennis balls during their march-on using several of these things. The administration didn't think it was funny, though...neither did the mids, as I recall.

:-)


mark/mn    Posted 11-23-2004 at 11:51:44       [Reply]  [No Email]
When I was in the service they came out
with an experimental food item called a T-rat. It
was a mix of grits, eggs, cheese and bacon
served up in a gelatin cube shape. It was the
most awful tasting stuff...

We took a cheater pipe for the track wrench
and had the mechanics weld a cap on the end
with a tiny hole for a piece of wire to run
through, then we mounted it to the top of the
turret. We'd stick a Hoffman ( maingun sound
simulator = to 1/4 stk of dynamite ) in the base
then cram the 4" x 3' pipe full of the T-rat gunk.
We'd wait for an unsuspecting vehicle to
drive by then touch er off using the loader's
light source. Gave new meaning to projectile
vo ... ya get the picture.
Most guys thought it was a hoot until a few
days later an errant glob would make itself
known by coming to full fester in an out of
reach spot in their turret. I guess we were
lucky the thing never blew up in our face or that
we never impaled someone with a T-rat log.


Zenia    Posted 11-23-2004 at 11:35:11       [Reply]  [No Email]
My brother makes potato launchers. he would love a cannon.


Texas    Posted 11-23-2004 at 11:40:18       [Reply]  [No Email]
I made one of those too...out of PVC. I figured bigger was better so I graduated to steel :)

Its a mock up of a 155 Howitzer complete with wheels, chocks, barrel elevator and armor shielding in front and can be towed behind my 4 wheeler should I ever decide to invade my neighbor to the South!


Melanie    Posted 11-23-2004 at 14:01:08       [Reply]  [No Email]
If we ever get invaded, I know whose house I'm holing up at!!!! :) :) :)


Hawk    Posted 11-23-2004 at 11:32:57       [Reply]  [No Email]
i want one!


Texas    Posted 11-23-2004 at 11:36:50       [Reply]  [No Email]
I can also attest that it was a Texan...me to be exact, who was the first man to put a barn rat into sub orbital flight. Unfortunately rats are not very aerodynamic....those lttle rat arms and legs clawing at the air and his fiery butt prevetnted him going much higher as the drag interfered with trajectory. :)


LOL!    Posted 11-23-2004 at 11:56:58       [Reply]  [No Email]
your killing me! that paints a good picture, i can almost see it now, The Adventures of Space Rat! LOL! Hawk


Melanie    Posted 11-23-2004 at 11:14:27       [Reply]  [No Email]
Did the ball survive? :)


Texas    Posted 11-23-2004 at 11:15:46       [Reply]  [No Email]
Ever see a smoking yellow tennis ball going Mach 2? :)

Yes maam the balls survive its just hard as hell finding them!


Melanie- LMAO!~    Posted 11-23-2004 at 11:18:10       [Reply]  [No Email]
That would be something to see, all right!!!! :)


Texas    Posted 11-23-2004 at 11:27:56       [Reply]  [No Email]
With the right mixture you can also launch a full can of Coke a long.......long...way. :)


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