Mississippi class armament

World B4

my bad y'all
Joined
25 June 2017
Messages
392
Reaction score
313
The CSA's navy often tried to commission warships by building or buying ships for seemingly civilian use or for a foreign nation. The Mississippi, Louisiana, Texas, and Georgia were a class of would-be commerce raiders who were seized by the French government while being built, and sold off to Prussia and Peru where they had illustrious careers. The BAP Union is probably the most famous. I would like to know if any data is available regarding their armament as originally planned by the confederates.

Edit: There was also a class of 2 ironclad turret ships the British confiscated that included a CSS Mississippi, entered service as the HMS Wivern. I have the same question regarding them.

The most famous CSS Mississippi that never served as such would have had room for 20 guns, a staggering amount for a casemate ironclad.
 
Last edited:
This paper looks relevant. If I'm reading right, some combination of 30 pdr guns was envisaged.

Edit: Now I'm at my computer, I am attaching a screen shot of the relevant letter (page 9):

1684094073175.png


Note that there are also some discussions of the two armored rams that the Confederates were trying to buy from France, and these have quite different armament: one forward-firing 300-pdr Armstrong gun (later 2x70 pdrs, as in Stonewall) and a pair of 6-inch rifles in a turret aft. (pg 14-15)
 
Last edited:
Note that there are also some discussions of the two armored rams that the Confederates were trying to buy from France, and these have quite different armament: one forward-firing 300-pdr Armstrong gun (later 2x70 pdrs, as in Stonewall) and a pair of 6-inch rifles in a turret aft. (pg 14-15
I think those were the Stonewall and her sister.
 
In regards to HMS Wivern and her sister, according to the Angus Konstam's Confederate Ironclads (the New Vanguard series) they were earmarked for 7 inch Armstrong rifles. So they got a bit up-gunned in British hands.
 
dit: Now I'm at my computer, I am attaching a screen shot of the relevant letter (page 9):

1684094073175.png
Thank you! I imagine it would have been the standard French type of the time
 
Note that there are also some discussions of the two armored rams that the Confederates were trying to buy from France, and these have quite different armament: one forward-firing 300-pdr Armstrong gun (later 2x70 pdrs, as in Stonewall) and a pair of 6-inch rifles in a turret aft. (pg 14-15
I think those were the Stonewall and her sister.

Maybe? I confess I'm no expert, just a Google savant.

I thought there were also some British rams but maybe those didn't actually get built? You're definitely more aware of all that than I am.

Reading through all of the letters in that archive doc was interesting. It's basically an account by a US diplomat in France documenting all the correspondence they got hold of, which they used to help block the eventual sales.
 
In Paul H. Silverstone's "Civil War Navies 1855 - 1883", the armament of the HMS Wivern, ex CSS Mississippi, is given as 4 - 9 inch MLR guns in two twin turrets.
With 20 - 60pdr MLR and 8 - 18 pdr guns credited is a ship, that was variously known as "Santa Maria", "Glasgow", or simply "Frigate N° 61", ordered, too, by the CSN, but never given any name. But that ship had a displacement of 4,770 ts, compared to 2,750 tons for the CSS Mississippi
 
dit: Now I'm at my computer, I am attaching a screen shot of the relevant letter (page 9):

1684094073175.png
Thank you! I imagine it would have been the standard French type of the time

I wondered about that. It seems a bit late for 30pdr smooth bores. M. Voruz, who was contracted to supply the cannon, was apparently making a pattern of rifled gun (somewhat like the Parrott) and a lot of the correspondence refers to shells (as opposed to shot) which might imply a more modern shell-firing gun rather than an old-style shot-firing cannon. I know Union eventually ended up with larger Voruz-pattern rifles (70pdrs) but I wonder if they might have planned 30pdr rifles for the Confederates.

Here is a different (official US govt) site with one of those letters:

 
And a bit more info on the original armament plan, this time from the Confederate purchasing agent. "Canon Rayé" is specifically a rifled cannon and "trente" is thirty, so definitely a 30pdr rifled gun.


1684237555399.png

Getting from pounds to bore is interesting and confusing, because there does not seem to have been a single convention for converting between the two measures. The US "100-pdr" Parrott was a 6.4-inch bore gun, but so was the Confederate "32-pdr" Brooke. It seems likely that these "30-pdr, 6.4-inch equivalent" guns are exactly the same guns that were on Union. See the video below, which describes a Peruvian Voruz gun in a museum in Lima. It refers to it as one of fifty-six "68-pdr" guns originally manufactured for the CSA by Vorus under a patent from Alexander Blackin(?)*. Some sources also describe them as 70-pound guns.

(Edit: Late thought, perhaps the "trente" refers to kilograms, which would have been the official French measure from around 1840. That would be 68 pounds, more or less.)

* this name is suspect -- I don't speak Spanish, the automatic transcription/translation is not good, and I don't know enough about 1860s guns to recognize the intended designer.

View: https://www.youtube.com/watch?v=luV7odFkDfE&ab_channel=RASTROSDEGUERRA
 
Last edited:
* this name is suspect -- I don't speak Spanish, the automatic transcription/translation is not good, and I don't know enough about 1860s guns to recognize the intended designer.

Aha. Probably Theophilus Alexander Blakely, a British Army officer who designed a range of guns similar to the more famous Armstrong guns. Due to a dispute with Armstrong about patents, he mainly sold the designs to the CSA. Among them was a 6.4-inch (100-pounder) gun, which goes to show how weird shell weight to bore was in this era.

 
In Paul H. Silverstone's "Civil War Navies 1855 - 1883", the armament of the HMS Wivern, ex CSS Mississippi, is given as 4 - 9 inch MLR guns in two twin turrets.
With 20 - 60pdr MLR and 8 - 18 pdr guns credited is a ship, that was variously known as "Santa Maria", "Glasgow", or simply "Frigate N° 61", ordered, too, by the CSN, but never given any name. But that ship had a displacement of 4,770 ts, compared to 2,750 tons for the CSS Mississippi
I've also wondered what "Santa Maria" would have been armed with, as far as I know she would have had 20 guns in Confederate service, which puts her next to the casemate Mississippi in terms of being large impractical incomplete warships with heavy armament. As far as I know, no Confederate ship had 20 cannons, the CSS United States got the closest with 19.
I've also seen contradictory info regarding the contract cancellation, so I am looking for a primary or good secondary source to tell me if the contract was cancelled by Thompson's, the shipbuilder, or by Lt. North, the confederate agent who contracted for her construction. The answer isn't really a common sense one, as the British were breathing down the necks of shipbuilders who aimed to build warships for the Confederacy, and the Confederates were looking to sell off the ship due to her lack of suitability for their needs.
 
Last edited:
In Paul H. Silverstone's "Civil War Navies 1855 - 1883", the armament of the HMS Wivern, ex CSS Mississippi, is given as 4 - 9 inch MLR guns in two twin turrets.
With 20 - 60pdr MLR and 8 - 18 pdr guns credited is a ship, that was variously known as "Santa Maria", "Glasgow", or simply "Frigate N° 61", ordered, too, by the CSN, but never given any name. But that ship had a displacement of 4,770 ts, compared to 2,750 tons for the CSS Mississippi
I've also wondered what "Santa Maria" would have been armed with, as far as I know she would have had 20 guns in Confederate service, which puts her next to the casemate Mississippi in terms of being large impractical incomplete warships with heavy armament. As far as I know, no Confederate ship had 20 cannons, the CSS United States got the closest with 19.
I've also seen contradictory info regarding the contract cancellation, so I am looking for a primary or good secondary source to tell me if the contract was cancelled by Thompson's, the shipbuilder, or by Lt. North, the confederate agent who contracted for her construction. The answer isn't really a common sense one, as the British were breathing down the necks of shipbuilders who aimed to build warships for the Confederacy, and the Confederates were looking to sell off the ship due to her lack of suitability for their needs.

Answer is probably somewhere in here (follow the link to footnote 30, which lists several primary sources on Santa Maria and her sale).


It looks like the relevant docs have been scanned and digitized but not OCR'd. Here is the index of consular dispatches by city. From this, you can get to the right city (mostly Glasgow or London) and then the relevant years. But unless you're better at reading 19th century handwriting than I am, it may be a challenge to decipher.

 
Last edited:
I have 2 more attempted Confederate pirate ships with unknown armament, the attempted KGC schooner J.M. Chapman and steamer Salvador.
I imagine a choice of armament for the Salvador would have been made after the ship had been chosen, captured, and examined, and a 90 ton schooner doesn't sound safe to put a cannon on
You could put 12-18pdrs on there. And the armies of the time did like their 12pdrs. (roughly a 3" bore)
 
I would wonder as to the availability of armament suitable for riverine craft or light artillery at the time, but also to what degree it would even be armed when it planned to leave. Perhaps a bit of a "Liberator pistol" idea?
I mean, naval carriages are completely different, but they're made from wood. So you put that army long 12pdr onto a custom naval carriage.
 

Similar threads

Please donate to support the forum.

Back
Top Bottom