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Mortar Launcher

Post questions and info about combustion (flammable vapor) powered cannons here. This includes discussion about fuels, ratios, ignition systems, safety, and anything else relevant.
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Mortar Launcher

Unread postAuthor: SCrid2000 » Sun Aug 13, 2006 2:29 am

Hey guys, I want to build a mortar launcher.
Not a pneumatic with a disk, I mean a genuine "drop the ball in, it hits the bottom and flies out" mortar launcher. Why? Well, why not, right.

Anyway, thhe best setup I can think of is a modified shotgun shell glued to a ball/potato (of course the bbs would be removed from the shell) and dropped into the tube, which has something to hit the primer at the end.

Fairly simple idea, what do you guys think?
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Unread postAuthor: spudkpi » Sun Aug 13, 2006 9:24 am

I think....
1. If you drop it down i doubt it will have enough force to burst
2. Messing with shotgun shells inside of pipes like that is very unsafe
3. Use a burst disk pneumatic.... much safer/ reliable (sp)
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Unread postAuthor: Bluetooth » Sun Aug 13, 2006 9:50 am

I agree. If i were you i wouldn't mess around with shotgun shells it's very unsafe it's like your asking to be blown up by a pipe bomb.
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Unread postAuthor: WOW!! » Sun Aug 13, 2006 10:57 am

Do you know what a under over set up is? All you do is make that with a sprinkler valve but dont modd it. Then at the base off you barrel put 2 screws in there so this way when your metal object hits the screws it willl open the sprinkler valve.
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Unread postAuthor: spudkpi » Sun Aug 13, 2006 11:13 am

Do you know what a under over set up is? All you do is make that with a sprinkler valve but dont modd it. Then at the base off you barrel put 2 screws in there so this way when your metal object hits the screws it willl open the sprinkler valve.


Dang that is a good idea i never thought of something like that... but how would you do it if you wanted to fire something that didn't have metal on the bottom to connect the srcrews...
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Unread postAuthor: Bluetooth » Sun Aug 13, 2006 11:39 am

you just wrap whatever your shooting in tin foil :lol:.
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Unread postAuthor: spudkpi » Sun Aug 13, 2006 12:19 pm

Wow that is creative. :D
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Unread postAuthor: SCrid2000 » Sun Aug 13, 2006 12:48 pm

Yes, but you still have to pump it before each shot.
I want to build something where the projectile exits the pipe on contact with something and can be shot over and over again rapidly. I also don't want it to be hooked up to an air compressor, which kinda rules out pneumatics. What else can you guys think of that would work?
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Unread postAuthor: WOW!! » Sun Aug 13, 2006 12:53 pm

Take a air compressor or a redulated CO2 set up and add a pressure switch to it and a nother sprinkler valve and have it at say 100PSI so it will fill up after each shot. and bam you got a simi auto mortar canon
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Unread postAuthor: Bluetooth » Sun Aug 13, 2006 12:54 pm

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Unread postAuthor: SCrid2000 » Sun Aug 13, 2006 4:45 pm

I don't have a CO2 setup and don't want to drop the $ to get one (yes I know it would be cheaper in the long run, but I am going to be too busy to use these bad boys come october 11).

What I really want is for the ammo to be what makes the whole thing work, and the launcher is just a tube.
There has to be some way to make the round detonate and self propel once it hits the chamber bottom.
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Unread postAuthor: M3NT4L » Sun Aug 13, 2006 9:53 pm

See people tryed to help you with all sorts of ideas and you still want to go risky with the shotgun shell, go ahead.
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Unread postAuthor: Mihlrad » Sun Aug 13, 2006 9:57 pm

I think talk of solid propellents is against forum policy...

Not to mention this is one of the most unsafe ideas of read in a while.
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Unread postAuthor: CS » Mon Aug 14, 2006 1:19 am

Mihlrad, dont worry. We will let lazyness counter stupidty, rather then rules. Its just another person posting a 'brain fart'.
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Unread postAuthor: MrCrowley » Mon Aug 14, 2006 2:19 am

SCrid2000 wrote:What I really want is for the ammo to be what makes the whole thing work, and the launcher is just a tube.


if you want it to look like a mortar the best bet for a pneumatic with trigger switch screw thingys at the bottom would be an in-line pneumatic
like a combustion but just with compressed air and a sprinkler valve.

if you are using solid propellents you could buy a dummy/used/inert mortar round from a surplus store and build it like a normal gun,or research mortars and copy their method if you have the money
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