Author Topic: List of largest cannon by caliber  (Read 930 times)

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Offline Cannoneer

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List of largest cannon by caliber
« on: December 28, 2009, 11:48:44 PM »
If it weren't for that French monster masher, we'd hold the title of world champ. It's interesting to note that out of the first fifteen largest guns listed, ten are pre 1899 pieces of ordnance.

Largest Cannon by Bore Size
RIP John. While on vacation July 4th 2013 in northern Wisconsin, he was ATVing with family and pulled ahead of everyone and took off at break-neck speed without a helmet. He lost control.....hit a tree....and the tree won.  He died instantly.

The one thing that you can almost always rely on research leading to, is more research.

Offline KABAR2

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Re: List of largest cannon by caliber
« Reply #1 on: December 29, 2009, 04:16:45 AM »
What is the diameter of M&T's rendition of the monster mortar? I think theirs would make the list.........
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Offline seacoastartillery

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Re: List of largest cannon by caliber
« Reply #2 on: December 29, 2009, 05:23:24 AM »
     Looks like a Wiki contributor became confused here.  The large French Mortier Monstre designed by Henri Paixhans was but 24 French inches, or 25.584 imperial inches (American/English inches).

    It appears to us that the Monster Mortar slips out of First Place due to these facts and that the American oddity of Little David eases into first place until eclipsed by some obscure Turkish bombard as yet unmentioned.

    The contributor appears to have the conversion of the French inches correct.  If each French inch equals 1.066 imperial inches and each imperial inch equals 25.4mm exactly, then 36 French inches equals 974.75mm rounded to 975mm.  If we double check by solution of the ratio involved in their stated dimensions we prove this true.
 
975:36=X:24                              1.066 X 24=25.584    (Fr. To imperial inches)
23,400/36=                                                      x 25.4   (mm per inch)
650mm=X                                                    649.834 rounded to 650mm

         
                           
A note on dimensions: The French system of measurement in the 18th century is a little different than the modern imperial system. A French inch (pouce) is the equivalent to 1.066” in modern imperial. Each French inch is further divided into 12 “lines.” Each line is equivalent to .088” today. The French foot is 12.44”.

FYI
Mike and Tracy

P.S.  Only 11", Allen; don't think we made the cut.
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!

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Offline Bob Smith

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Re: List of largest cannon by caliber
« Reply #3 on: December 29, 2009, 05:33:54 AM »
Exactly- I think they are definitely missing some of those big Turkish Bombards

Bob Smith

Offline Cannoneer

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Re: List of largest cannon by caliber
« Reply #4 on: December 29, 2009, 07:31:30 AM »
I did zero checking on any of these measurements, and I think that most of us know that 'caveat lector' should always be kept in mind when viewing anything from Wikiville, but if M&T are correct, (and I have no reason to doubt that they aren't) then we are in the position of being "The World Champions" of big bore artillery.
I just did a little reconnoitering, and found a source (albeit, an Irish journal "The Dublin University Magazine, Volume II, 1833, by William Curry," that states that the diameter (doesn't say bore diameter) of the monster mortar was three feet. The "Guiness Book of World Records" (great sources huh!) gives this info: The largest mortars ever developed were the French "Monster Mortar" (developed by Henri-Joseph Paixhans in 1832), "Mallet's mortar" (developed by Woolwich Arsenal, London in 1857) and the "Little David" (developed in the United States for use in World War II). Each weapon had a caliber of 36 inches (915 mm); only the "Monster Mortar" was used in action (at the Siege of Antwerp in 1832).
So, what gives here? I'll have to give a little greater effort to investigating this matter later on tonight. 

This nice print is from a French full text E-book, but I don't have time to translate it now.
RIP John. While on vacation July 4th 2013 in northern Wisconsin, he was ATVing with family and pulled ahead of everyone and took off at break-neck speed without a helmet. He lost control.....hit a tree....and the tree won.  He died instantly.

The one thing that you can almost always rely on research leading to, is more research.

Offline seacoastartillery

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Re: List of largest cannon by caliber
« Reply #5 on: December 29, 2009, 10:11:25 AM »
    Boom J,     I know you don't have the time to double check everything on Wikipedia, neither do I, but, because of our monster project on Paihans' big mortar this year, I was just familiar enough to notice this error.  The most telling evidence of bore size of the large Paixhans mortar comes from the annals of the Military Commission to Europe in 1855 and 1856; Report of Major Alfred Mordecai of the Ordnance Department, first published in 1858.  See the excerpt below from page 117 of the Commission’s report.

   “During the present century a few pieces of ordnance have been occasionally made of unusual weight and size, in order to obtain an extraordinary range or great power of destruction.  Such were the long brass mortars of 9-inch and 11-inch bore made by General Villantroys for the siege of Cadiz, under Napoleon, and the iron “Monster Mortar”, of 24-inch bore made at Liege for the siege of Antwerp, in 1832”

Also there is the New York Times article of 1862:

     "The largest mortar ever employed in active service was the iron 24-inch mortar tried by the French against the citadel of Antwerp in 1832, during the war of separation between the Dutch and the Belgians."

     There is also the great disparity between the weight of the munitions for the big French mortar, 500 kilogr, or about 1,000 lbs. and the huge Mallet's mortar of 1857, which fired shells of 2,450 to 2,900 lbs according to trials officials , as reported by the London Times in 1857.

There are other references to the Monster Mortars bore size, but we don’t have time to search for all of them at this time.  Frankly, the Commission’s Report by Alfred Mordecai is proof enough for us.  

Regards,

Mike and 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 Soot

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Re: List of largest cannon by caliber
« Reply #6 on: December 29, 2009, 10:50:12 AM »
I think that most of us know that 'caveat lector' should always be kept in mind when viewing anything from Wikiville,

I think this is a good practice in any part of Internetland