*NEW* My M-55 Mk. IV Metered Propane Cannon

Boom! The classic potato gun harnesses the combustion of flammable vapor.
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Tombstone
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Location: Quebec, Canada

Here is my latest and best big gun!! Meet the M-55 Mk. IV !
*BTW, the roadsign was straightened and re-attached to the post after that massive shot*... :p

SCH 40 PVC, Doubled on chamber and first half of barrel.
0.4:1 C:B Ratio, 4.1% Propane/Air ratio (metered).
Same ignition as my previous M-55's (BBQ Igniter with modded electrode).
New mod on my chamber fan module, added a threaded steel rod through, epoxy'ed and bolted tight, to have a solid grip on the fan module to unscrew/screw for maintenance of chamber.
Chamber : 4in.X 20in.
Barrel : 1.5 X 50in.
Sound : Badass.
Recoil : Solid.
Reliability : One click, one bang...
Grinning like a mofo everytime i fire it : PRICELESS!!!
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Last edited by Tombstone on Mon May 26, 2014 10:00 pm, edited 1 time in total.
..."Cannons to right of him,
Cannons to left of him,
Cannons in front of him
Volley'd and thunder'd;
Storm'd at with shot and shell,
Boldly He rode and well,
Into the jaws of Death,
Into the mouth of Hell
Rode the Tombstone."...
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Anatine Duo
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Location: cottage country
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that's pretty awesome

I like when plumbing doesn't look exactly like plumbing
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Tombstone
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Posts: 29
Joined: Thu Aug 01, 2013 4:17 pm
Location: Quebec, Canada

Hehe, thx !! Me too man, i like to make my guns, solid, badass and lookin' good, although, it still aint perfect finish-wise, cause i've had to improve on my original design, and had to repaint a few parts and retape the whole thing, but i think i'm becomming a decent "Cannonsmith", lol!... ;)
..."Cannons to right of him,
Cannons to left of him,
Cannons in front of him
Volley'd and thunder'd;
Storm'd at with shot and shell,
Boldly He rode and well,
Into the jaws of Death,
Into the mouth of Hell
Rode the Tombstone."...
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