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4.2 inch Mortar

Built a pneumatic cannon? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
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4.2 inch Mortar

Unread postAuthor: biged » Sun Sep 07, 2008 9:39 am

A replica of a WW2 4.2 inch chemical mortar.

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Valve: 3 inch serviceable piston
Porting: 2.375
Barrel: 2.625
Construction: Steel
Piloting: .5 QEV
Trigger: Blowgun
Action: Breech loading
HopUp: No
Pressure range: 290 psi (burst pressure of hose, Chamber pressure tested up to 300 psi.)
Range: 400-600 (Estimated, actual unknown due to ammo & terrain)
Reenactment/Training Ammo: Tennis balls, Saboted Nerfs, Bee-hives
Other ammo: Full soda/beer cans

To bombard targets I launch in 6+ Tennis balls at once.

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Close up of the QEV and trigger.
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Picture of the internals before the slip inside the outer 4" shell.
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Close up of the breech system.
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Painted and finished.
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///ed///
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Unread postAuthor: SpudFarm » Sun Sep 07, 2008 9:46 am

AWESOME, have little time right now so i will make a edit here soon
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"Made in France"
- A spud gun insurance.
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Unread postAuthor: Sticky_Tape » Sun Sep 07, 2008 10:31 am

Wow I likey. It looks realy cool. If you would like to get more range I suggest injecting the tennis balls with water you know the old foam ball vs. baseball thing correct?
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You can tell how awesome a cannon is by the pressure used.
http://www.spudfiles.com/forums/high-pr ... 12803.html
xnt rnm ne z ahtbg
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Unread postAuthor: starman » Sun Sep 07, 2008 10:58 am

Man this thing is one cool customer...and I'll bet one heavy mother.. 8) My favorite thing is the hitch ball pivot point and the overall replica mortar aiming setup and paint job...beautiful!!

Great work on the breech loading system as well. Very well done!!!

Edit: Do you have any shots of your piston design and setup? Oh and...the dangly air gun looks a little, well, dangly. Is there any way you could hard pipe that or tie it down better?
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Last edited by starman on Mon Sep 08, 2008 12:06 am, edited 2 times in total.
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Unread postAuthor: ALIHISGREAT » Sun Sep 07, 2008 11:13 am

WOW thats a good looking mortar/caanon, you should definitly find somewhere you can test the range properly because i imagine its quite impressive 8)
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Unread postAuthor: brogdenlaxmiddie » Sun Sep 07, 2008 12:48 pm

Looks phenomenal!

Edit- This is my new favorite Mortar System on the site! Congratulations :D
:wav:
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Last edited by brogdenlaxmiddie on Sun Sep 07, 2008 2:06 pm, edited 1 time in total.

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Unread postAuthor: Sticky_Tape » Sun Sep 07, 2008 12:58 pm

So what do you fill it with?
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You can tell how awesome a cannon is by the pressure used.
http://www.spudfiles.com/forums/high-pr ... 12803.html
xnt rnm ne z ahtbg
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Unread postAuthor: marpat » Sun Sep 07, 2008 2:09 pm

wow i looks like all you need now is some mustard gas :D :D
i quite like the overall look at first glance i thought you got a demilled mortar {if that is even possible} and put in a piston
the mortar looks like the real deal
i bet it really makes the neighbors jumpy when you bring that thing out
i would have never thought of using a trailer ball hitch on the bottom
very smart!
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Unread postAuthor: psycix » Sun Sep 07, 2008 4:42 pm

Looks awesome.
But I like the naked look where you can see the parts more then the covered one, but thats just me.

With those pressures, this thing is a beast!
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Unread postAuthor: Gippeto » Sun Sep 07, 2008 10:36 pm

Truly, a beast indeed! :)

Fine job biged! Beautifully executed. :thumbup: :thumbup:
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Unread postAuthor: biggsauce » Mon Sep 08, 2008 12:17 am

Well yall know me, I'm sucker for anything that looks mean and has a OD green paintjob. I like your windage and elevation setup. Overall, thats slick man
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Unread postAuthor: BlackH » Mon Sep 08, 2008 1:55 am

This is very very good craftsmanship, awesome!!!!!
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Breaking stuff with a Big Bang haven’t been this much fun!!!!!!!!!!


http://www.spudfiles.com/forums/bh-2400 ... 14078.html
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Unread postAuthor: Pyro Ninja » Mon Sep 08, 2008 3:37 am

I love how you fit everything into a neat little package.
Very nice attention to detail :D
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Unread postAuthor: jackssmirkingrevenge » Mon Sep 08, 2008 4:14 am

extremely well done, functional and complete with an authentic finish, full marks :)
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Unread postAuthor: MrCrowley » Mon Sep 08, 2008 4:35 am

Very nice, right up there with some of my favourite cannons on the site.
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