Help to Id. US artillery

[ROLAND1369]

Sturm78 » 14 Dec 2017 21:26 I would call this a 155 MM model 1920E gun on a 155 MM-8 inch carriage Model 1920. tI have forgotten the source of the photo.

[Carl Schwamberger]

Trying to recall if either of those are at the Ft Sill museum.

[ROLAND1369]

Do not remember seeing them at Aberdeen or Fort sill when I was at the later in 2016. Aberdeen had a different 155 based on a lengthend version of the 155 howitzer m1917 but not these. Enclosed is another pic from the "Field Artillery Journal Vol X No6, Nov Dec, 1921. facing page 642. Has an article on experimental field artillery in the ordnance section.

[Carl Schwamberger]

Some similarities to the GPF cannon, from the French, but not the same cannon in detail. In the example I'm looking at the sleeve step downs are clearly different & the breech barrel appears less massive on the M1920E1.

[ROLAND1369]

Agree,obviously both the barrel and carriage are an evolution of the 155 GPF rather than a great leap forward in design. I found pictures and some data on the companion 120 MM m1920. Note some of the differences, 'A' shows an extra step on the 120 mm barrel," B" shows the cut out ,vice solid recoil rail, 'C' shows the different recoil rod at the breech, and you will notice the smaller upright equibulators on the 120 carriage. From the specs I drew a pretty good idea as to why the 120 went no further. Why would you produce a weapon which throws a 50 lb projectile when for little more weight and on the same carriage you can have a 155 MM throwing a 95 lb projectile?

[ROLAND1369]

Incidentally looking at the original picture posted by Sturm 78 I was mistaken and it was a 120 MM model 1920. All pictures came from the Field artillery Journal and are the first I have seen of the elusive 129 mm gun.

[ROLAND1369]

Correction: 120 MM gun.

[Hoist40]

Its hard to identify some US artillery of this time period since they had a lot of experimental one off designs they were testing. Some might have been the same equipment with different modifications.

Many of these gun projects were put in mothballs in the 1930's due to a lack of money and the various programs were not restarted until 1940's when war money was available

[Sturm78]

Hi all,

Uummhhh...I am a bit confused. Here another images :

Image posted 14 dec 2017: 120mm M1920 ??? very long barrel, long and thin equilibrators, carriage with thin arms,....
Image 1 posted today: a different image of the same gun with very long barrel, long and thin equilibrators, carriage with thin arms
Image 2 posted today: 120 or 155mm gun ??? shorter barrel, shorter equilibrators but I think the same carriage than the other guns
Image 3 posted today: I think probably an 155mm howitzer. Shorter barrel but long and thin equilibrators, carriage with thin arms...

The 155mm gun and 203mm howitzer posted by ROLAND1369 on 15 dec seems have a different carriage with larger arms....

Sturm78

[Carl Schwamberger]

# 3 the bottom photo looks like a 203mm caliber to me. Difficult to tell since there is nothing in the background to scale the thing. The size of the bore in relation to the other parts is what catches my eye.

Have you taken a through look at the Field Artillery Journal? When I read the Volumes from the 1920s there were quite a few on the cannon tested in those years.

[Sturm78]

Hi all,

Can anyone identify these SP guns? The barrels seems 155mm GPF (M1917-1918)

Thanks in advance. Sturm78

[Carl Schwamberger]

Was on the artillery walk at Ft Sill 25 months ago & saw nothing like this. A quick web search turned up a similar image on wiki commons

Screen Shot 2018-01-23 at 5.10.42 PM.png (238.36 KiB) Viewed 2943 times

Skimmed several other web sites & came up dry. It would be time consuming but there are a number of items in the US Field Artillery Journal describing the T series cannon of the 1920s & 30s. It might appear there.

[Sturm78]

Your image is a towed gun on tracked carriage but the guns of my image are self propelled guns ...

Sturm78

[Sturm78]

Nobody for the SP guns ??

Well, here another question. Any idea about the exact model of this heavy US coastal gun on dissapearing carriage ?
All the models seem the same to me...

Image from Ebay
Sturm78

[Carl Schwamberger]

Your image is a towed gun on tracked carriage but the guns of my image are self propelled guns ...

Sturm78

Correct, but these projects maybe related. & may have have been run by the same group of officers.