Author Topic: A challenge to our Sponsors, and anyone else building cannons (Read 3045 times)

Double D · « **Reply #30 on:** September 18, 2011, 04:42:47 AM »

Quote from: seacoastartillery on September 17, 2011, 05:33:01 PM

Frankly there doesn't seem to be a whole lot of interest in the contest gun idea, yet.

Because the discussion seems to drift from how a gun could fit the SAMCC criteria to a discussion on specific guns history and details. The real topic gets lost.

How about it Dominick and Ed are you interested building a gun to meet the criteria?

rifleshooter2 · « **Reply #31 on:** September 18, 2011, 06:14:01 AM »

I think Mike and Tracy have a picture of just what I would make for this right on their site. the 1844 Howitzer.

http://www.seacoastartillery.com/photos.php?id=333

Andy

Double D · « **Reply #32 on:** September 18, 2011, 06:52:14 AM »

Quote from: rifleshooter2 on September 18, 2011, 06:14:01 AM

I think Mike and Tracy have a picture of just what I would make for this right on their site. the 1844 Howitzer.

http://www.seacoastartillery.com/photos.php?id=333

Andy

You're right Andy that one would work real well I would think. In fact, I think have plans for this one.

seacoastartillery · « **Reply #33 on:** September 18, 2011, 09:14:39 AM »

Quote from: Double D on September 18, 2011, 06:52:14 AM

Quote from: rifleshooter2 on September 18, 2011, 06:14:01 AM
I think Mike and Tracy have a picture of just what I would make for this right on their site. the 1844 Howitzer.

http://www.seacoastartillery.com/photos.php?id=333

Andy

You're right Andy that one would work real well I would think. In fact, I think have plans for this one.

Andy and Douglas, I think you would really have to do some intelligent re-designing on this one to avoid the extremely complex carriage and make the tube of such a size as to get a balance between sight radius and weight. I have always had great respect for the original 1844 Flank Howitzer and there are at least a dozen pics on this board of this piece that we have posted.

I believe that you could build an effective Flank Howitzer for this contest, so I will give you the very basic numbers. The answer probably lies between the two scales. The carriage would be really spindly if made at the smaller scales. 35 years in manufacturing tells me that, not guesswork. Perhaps a different type of slide carriage could be devised?

The data:

Original: 69" Long
13.8" Base Ring Dia.
1,500 Lbs. Weight

1/4 Scale: 17.25" Long
3.45" Base Ring Dia.
23.5 Lbs. Weight

1/5 Scale 13.8" Long
2.76" Dia.
12 Lbs. Weight

Tracy

P.S. Douglas, I thought you would have had one of these built by now; I sent you that extra set of drawings that I had almost two years ago!

armorer77 · « **Reply #34 on:** September 18, 2011, 10:09:28 AM »

That 1844 looks doable in 1/4 scale .

rifleshooter2 · « **Reply #35 on:** September 18, 2011, 11:46:02 AM »

I'm leaning to 1/4 scale for the 1844, with a .75 cal bore. I can always bore it out to 1 inch later if I want. With a simple slide carriage.

Andy

Double D · « **Reply #36 on:** September 18, 2011, 03:56:25 PM »

Quote from: seacoastartillery on September 18, 2011, 09:14:39 AM

b
Andy and Douglas, I think you would really have to do some intelligent re-designing on this one to avoid the extremely complex carriage and make the tube of such a size as to get a balance between sight radius and weight. I have always had great respect for the original 1844 Flank Howitzer and there are at least a dozen pics on this board of this piece that we have posted.

I believe that you could build an effective Flank Howitzer for this contest, so I will give you the very basic numbers. The answer probably lies between the two scales. The carriage would be really spindly if made at the smaller scales. 35 years in manufacturing tells me that, not guesswork. Perhaps a different type of slide carriage could be devised?

The data:

Original: 69" Long
13.8" Base Ring Dia.
1,500 Lbs. Weight

1/4 Scale: 17.25" Long
3.45" Base Ring Dia.
23.5 Lbs. Weight

1/5 Scale 13.8" Long
2.76" Dia.
12 Lbs. Weight

Tracy

Either one would work in .50 or .58 caliber-straight cannon bore. The carriage does not have to be that complex, a simple carriage to hold gun so it can be fired. Remember the SAMCC gun is more conceptional than detailed and scaled.

Quote

P.S. Douglas, I thought you would have had one of these built by now; I sent you that extra set of drawings that I had almost two years ago!

Yes and the carronade and the two more K.I.S.S. Golf ball mortars, three K.I.S.S. pop can mortars, and finishing the 6 PDR Coehorn and building the K.I.S.S. bowling ball mortar...and right now I should be working in my homework for the Website design class...but what the hey that homework isn't due until Tuesday.

Double D · « **Reply #37 on:** September 18, 2011, 04:03:08 PM »

By the way I keep saying .50 or .58 caliber for these guns. .59 and .58 caliber balls, patches and wads are over the counter items in most black powder and some gun shops. Another point of marketability. A simple basic gun that shoots standard ball, that won't break the bank to buy.

We now have a small cannon wheel maker on board so the guys could buy a tube and build their own carriage to keep cost down.

A simple cannon tube is what is needed; nothing fancy, nothing complex.

seacoastartillery · « **Reply #38 on:** September 19, 2011, 12:54:20 PM »

Quite possibly a simple and reasonably priced SAMCC contest cannon could be made from the 1819 "Walking Stick" cannon. If you look closely at those photos that Double D. posted of the South African Club guns, you will see that at least four of them are slender and have the same 'Trumpet' muzzle swell that the Model 1819 has. Mike and I call it the 'Trumpet' style muzzle swell to differentiate it from the 'Tulip' style that the 6 Pdr. 1836 Iron Field Gun displays.

The following is a photo someone gave us recently which shows a reenactment group firing an 1819 6 Pdr. 'Walking Stick' field gun. Wish we knew the group's name and location.

M&T

Looks like a light blank charge of 3 or 4 oz.

dominick · « **Reply #39 on:** September 19, 2011, 04:10:23 PM »

Douglas, I certainly am interested! I have an idea for a cannon which I sold a few models of in the past. I'll try to find a photo of it and post it. Dom

dominick · « **Reply #40 on:** September 20, 2011, 12:03:18 PM »

This cannon has a stable base that should shoot very well in competition. Also, easy to build and low cost. Quoin adjustable elevation. This one is 1" bore but I also made them in 50, 68 and 75 caliber. I would add a muzzle flair that is the same diameter as the breech. Dom

Double D · « **Reply #41 on:** September 20, 2011, 04:26:09 PM »

Dom,

Great starter and with flare or just a ring at the muzzle should work great in a fifty cal.

How long is the barrel?

dominick · « **Reply #42 on:** September 21, 2011, 02:49:21 AM »

Douglas, The barrel is 12" long. I was also thinking 50 cal. I'll build one along with a test fire video. Dom

Double D · « **Reply #43 on:** September 21, 2011, 07:24:53 AM »

Dom,

What is the maximum barrel length you could build your Dahlgren with .50 cal?

dominick · « **Reply #44 on:** September 21, 2011, 02:19:39 PM »

5-1/2" is the maximum I can drill with my lathe. With small tubing barrels I can go to 18". The Dahlgren barrel has a large breech diameter to length ratio. A 12" long Dahlgren barrel would need a breech diameter of 2.75" to 3" to be proportionate to its length

irishman · « **Reply #45 on:** September 24, 2011, 06:08:39 PM »

We have completed 4 of the SAMCC 'Target Grade' barrels. These are the first of this design which has the flaired muzzle the same diameter as the breech. Much has been written about the ease of sighting this barrel. GBO members who choose either SAMCC will recieve one year Membership to the South African Minature Cannon Club (SAMCC), courtesy of the Irishman.

Please note that our basic utility carriages are showing improvement.

The 50 cal Mountain Howitzer on the bottom right is also one 'straight shooter'.

Michael

projector · « **Reply #46 on:** September 29, 2011, 11:21:44 AM »

Quote from: irishman on September 24, 2011, 06:08:39 PM

We have completed 4 of the SAMCC 'Target Grade' barrels. These are the first of this design which has the flaired muzzle the same diameter as the breech. Much has been written about the ease of sighting this barrel. GBO members who choose either SAMCC will recieve one year Membership to the South African Minature Cannon Club (SAMCC), courtesy of the Irishman.

Please note that our basic utility carriages are showing improvement.

The 50 cal Mountain Howitzer on the bottom right is also one 'straight shooter'.

Michael

Nice Irishman, but I'm saving my pennies for your 32 pounder.

Double D · « **Reply #47 on:** September 29, 2011, 03:48:49 PM »

The 32 PDR should;d work pretty good for SAAMC shooting

projector · « **Reply #48 on:** September 30, 2011, 03:08:07 AM »

Quote from: Double D on September 29, 2011, 03:48:49 PM

The 32 PDR should;d work pretty good for SAAMC shooting

It's a beautiful barrel!

projector · « **Reply #49 on:** October 28, 2011, 09:13:58 AM »

So I've been thinking about this and got one of Brook's longer 50 cal howitzer barrel. It's about 11" long and mostly the same diameter the entire length...not to mention it's relatively inexpensive. My first thought was a field carriage. Wheels diameter would be close to the length of the barrel, I might be able to pull that off. But I want something to shoot so I'll do a naval carriage first. Here's some images of a cad file using an image of the 32 pounder from Round Shot and Rammers scaled to fit the barrel. I had to do some altering for things to line up but it was already pretty close. And yes I spent way to much time on the model.

I posted this to keep the thread alive, and plan on starting a new thread on the build. thanks,