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Post Info TOPIC: St.-Chamond Tank Prints at the National Archives


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St.-Chamond Tank Prints at the National Archives

At US National Archives, College Park Maryland, there are 16 folders of prints for the Artillerie St-Chamond Tracteur Cuirasse De 90HP.  I have attached the cover of one of them.  I did not have time to go through them, but I have attached the loose St.-Chamond drawings that I found in the file box.  

Found these on my last day of my week visit in late March 2020.  I have just enough time to go through and document the British tank prints (passed on to David Fletcher) and the Fiat 2000 tank prints (passed onto the replica builders in Italy), well as some of the files that I was looking for.





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That certainly fills in a bit more about the Mark IV and IVA self-propelled guns built at the Rock Island Arsenal in 1918.

It's thought the motivation for building the Mark IV/IVA was the failure of the Holt Mark III with the 240mm gun - this proved to

be very heavy and had poor mobility.

It was surmised that the US Ordnance Dept had obtained plans for the St-Chamond SPG which now appears to be confirmed.

Presumably the plans were sent over before the decision was made in France to not adopt the St-Chamond 220mm howitzer and instead

use the 280mm Mle 1914 Schneider howitzer for the SPG. 

The US made Mark IV/IVA used the new 240mm Schneider howitzer which did go into service after WW1 as the 240mm Howitzer Model 1918.

The images are of the Mark IV/IVA




-- Edited by CharlieC on Thursday 8th of July 2021 11:32:12 PM

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