Author Topic: unsual artillery piece  (Read 824 times)

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Offline rivercat

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unsual artillery piece
« on: May 20, 2013, 10:22:23 PM »
Hi All,
One of the things down at fort Nelson was this little number, not sure what its use was with this design perhaps members of this forum can have a guess.
 

I would take a chance and say this was more for anti personal which could spread the shot over a wider area, doing max damage to personal?

Offline cannonmn

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Re: unsual artillery piece
« Reply #1 on: May 21, 2013, 12:30:58 AM »
If you have that info, I'd like to know what's on either the brass plate on top of the cannon, or the sign in front of it.  It looks like one of many such cannons which I think were captured in India.  I'm sure the idea was to get a wider dispersion of grapeshot, which may have been spheres or cubes depending on whether the edges of the bore were hemispherical or flat.  I'd like to see some test-firing results.  Perhaps the Seacoast boys will build one of those and shoot it to find out if it dispersed shot better than a cylindrical bore, or not.

Offline steelcharge

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Re: unsual artillery piece
« Reply #2 on: May 21, 2013, 02:08:06 AM »
"The Armouries of the Tower of London: The Ordnance" by H. L. Blackmore lists this (or one exactly like it) gun as part of the Towers artillery collection in 1976.

"Cal at muzzle 14.75in by 2.5in. Diam chamber approx 1.5in."
"Taken at Bhuj in Kutch in 1819.." 
"This gun, which was intended to fire a charge of musketballs or small pieces of metal is similar to two guns in the Rotunda Museum. In the Rotunda Catalogue (1864) these are stated to have been obtained from Kutch and to have been cast by native craftsman who had received instruction in Holland."

I don't know where Kutch is/was but according to that book the gun is Indian, so in India somwhere I guess.


Offline subdjoe

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Re: unsual artillery piece
« Reply #3 on: May 23, 2013, 06:28:41 PM »
http://en.wikipedia.org/wiki/Kutch_District

Kutch district (also spelled as Kachchh) (Sindhi: ڪڇ) is a district of Gujarat state in western India. Covering an area of 45,652 kmē,[1] it is the largest district of India.

Kutch literally means something which intermittently becomes wet and dry; a large part of this district is known as Rann of Kutch which is shallow wetland which submerges in water during the rainy season and becomes dry during other seasons. The same word is also used in the languages of Sanskrit origin for a tortoise. The Rann is famous for its marshy salt flats which become snow white after the shallow water dries up each season before the monsoon rains.
Your ob't & etc,
Joseph Lovell

Justice Robert H. Jackson - It is not the function of the government to keep the citizen from falling into error; it is the function of the citizen to keep the government from falling into error.

Offline seacoastartillery

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Re: unsual artillery piece
« Reply #4 on: May 23, 2013, 07:32:19 PM »
    Interesting photo, Rivercat.  The ignorance which drove this and similar designs we have seen at Trophy Point at West Point, NY and in reference books over the years is the fact that the number of balls propelled cannot be what the casual observer thinks when they see the muzzle of these devices.  To prevent a logjam of musket balls you must stop filling the thing with balls long before you reach a point distant from the top of your powder charge equal to the length of that powder charge. 

     So, while 10 or 12  75 cal balls may seem like a lot, the shape of the muzzle actually works against you as these few balls tend to bounce off one another and the increasingly divergent side walls of the tube until you get a sort of chain reaction of wildly ricocheting balls escaping the plane of the muzzle instead of a tightly packed, organized, shot column moving smoothly ahead.  To make matters worse, any sort of shot protecting, over powder wad, becomes useless at the moment of discharge due to the same divergent tube walls.  So you would have blasts of powder gasses blowing through your shot, further confusing their tendency to go straight ahead, and the failure to maintain pressure means that the initial velocity cannot be maintained, so all of the actions of the confused shot charge would happen in slow motion compared to the organized shot column of a similar capacity, conventional cannon.  It is just conjecture, but we believe that a soldier could walk through the widely dispersed pattern at 75 yards.  Due to low velocity, even if hit, you could be bruised instead of holed.  Could anyone say that was true of a two pounder similarly loaded which was aimed at the soldier at the same distance?  We think not.  "Riddled" is the description that quickly comes to mind.

     And now to address the troublemaker, Cannonmn,  We are signed up for far too many projects as it is, however, this one  certainly has some interesting elements, does it not?  It is unusual, rare, would be fun to build, it has the mystery of unknown firing results and the shape looks like death to anyone stupid enough to stand before it which makes for a suspenseful  Test-Fire  video.   

     John, you almost had me including it on the official list of Special Projects for 2013 until I remembered what Mike said just the other day.  He said, " Tracy, if I catch you signing us up for any more special projects, I'm going to stretch your neck as thin and tight as one of Charlie Daniels' fiddle strings as he plays "The Devil went down to Georgia"!!  Ouch.

Tracy
Smokin' my pipe on the mountings, sniffin' the mornin'-cool,
I walks in my old brown gaiters along o' my old brown mule,
With seventy gunners be'ind me, an' never a beggar forgets
It's only the pick of the Army that handles the dear little pets - 'Tss! 'Tss!

From the poem  Screw-Guns  by Rudyard Kipling

Offline KABAR2

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Re: unsual artillery piece
« Reply #5 on: May 24, 2013, 07:48:41 AM »
 An interesting little cannon..... muzzle flares have been experimented with elsewhere I have seen blunderbuss's with flat flared muzzles if Sea Coast doesn't add this to the projects list I may take a look at it for 2014..... they must have had some success with it or why build more than one? I am hoping by the end of next month be settled in a new place.... it will probably take me the rest of the year to get everything unpacked and sorted out otherwise I might tackle the project this year.....
Mr president I do not cling to either my gun or my Bible.... my gun is holstered on my side so I may carry my Bible and quote from it!

Sed tamen sal petrae LURO VOPO CAN UTRIET sulphuris; et sic facies tonituum et coruscationem si scias artficium