Burst Disc cannon.
Last Post 04 Dec 2011 04:14 AM by Darren Scott. 17 Replies.
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Darren ScottUser is Offline
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28 Jan 2009 01:50 AM

I've received approval for my burst disc cannon design, after rigorous testing, and I'm pretty stoked. 

It's a single-shot, single or multi-barrel, cheap, lightweight, cannon meant for torps.

 

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MarkUser is Offline
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28 Jan 2009 06:17 AM
got a drawing of the gun?
Darren ScottUser is Offline
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29 Jan 2009 12:04 AM
No drawings, but I should have pictures soon.
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CPT. JrUser is Offline
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29 Jan 2009 02:36 PM
they would be nice to see
cosworthUser is Offline
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13 Feb 2009 03:57 AM
I have seen this gun in action and the simplicity of it makes it very appealing for anyone who has a boat a bit cramped for room and needs to reduce on weight
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13 Feb 2009 05:34 PM

Are we going to se those picture anytime soon?

Terry
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11 Jun 2009 10:16 PM
Inquiring minds want to know...
I am prepared to meet my maker, whether He is prepared for the ordeal of meeting me is another matter. -Sir Winston-
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12 Jun 2009 08:15 AM
Ditto!!!!!
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BryanUser is Offline
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01 Mar 2010 09:45 AM

Still waiting for Photos.....

Bryan, ~~ Member of the OAF, ~~ Ontario Attack Force ~~ Happy dad to battling sons. ~~ ~~ http://ontarioattackforce.multiply.com/ ~~ Fleet: DKM Bismarck SMS Hindenburg SMS Scharnhorst DKM Adm Scheer DKM Nordmark ~~ Molding: USN Tennessee USN Gearing IJN Mogami IJN Akizuki and decks turrets etc. ~~ http://ontarioattackforce.multiply.com/photos/album/18#
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16 Mar 2010 11:23 PM
Me too, I would be interested in seeing drawings........
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02 Apr 2010 11:00 AM
I would love to see photos and drawings, but looking at the age of this post, it might be a very long time before we see anything.
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Darren ScottUser is Offline
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02 Apr 2010 07:29 PM
Ok, ok, I'll go dig up the camera.
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Steve TyngUser is Offline
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30 Nov 2011 07:30 PM
Posted By Darren Scott on 02 Apr 2010 07:29 PM
Ok, ok, I'll go dig up the camera.


Find that camera yet?

 

Darren ScottUser is Offline
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03 Dec 2011 08:33 AM
Yes.
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DaemonUser is Offline
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03 Dec 2011 09:50 AM
Pictures? Wouldn't mind a look at this.
Darren ScottUser is Offline
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03 Dec 2011 05:58 PM

Ok, here it is, in all it's simplicity.

Barrel, retainer, body.

 

 

Retainer fitted to body, no burst disc fitted.

 

Assembled cannon.

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DaemonUser is Offline
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04 Dec 2011 03:41 AM
Wow, that really is simple, what did you use for the parts?

Looks like it would be good for sub torp tubes.
Darren ScottUser is Offline
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04 Dec 2011 04:14 AM
This cannon is for HMS Rodneys submeregd torps. Haven't used it in combat yet, I keep forgetting it's there.
One day a merchant will hug my bow, and pay the price.
The body is made from a 1-3/4" to 1" PVC reducer and a 1-3/4" end cap.
Internal volume is about 65cc.
The threaded section, retainer and cap were recovered from a hair dye bottle. (no, I don't dye my hair, my wife dyes hers).
The brass parts were turned on my lathe from stock with the barrel flared and slid in from the back, and epoxied in place.
The size of the hole in the brass part determines the burst pressure, and you'll need to use a bit of trial and error to get that right.
I use a section of disposable latex glove for the diaphragm.
There's a small magnet embedded in a lump of metal putty at the base of the barrel, to hold the 1/4" bb in position.
Still a proud member of the AUSBG!
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