Quotulatiousness

September 1, 2026

St. Chamond 75mm field gun: From Mondragon to WW1 tanks to Israel

Filed under: France, History, Military, Weapons, WW1 — Tags: , , , , , — Nicholas @ 02:00

Forgotten Weapons
Published 13 Apr 2026

The design for the St Chamond 75mm field gun was initially created by Mexican small arms designer Manual Mondragon, who worked extensively in artillery as well as small arms. As Mexico had no domestic artillery production capability, he worked with the engineering team at St Chamond under Emile Rimailho to complete the design, and Mexico purchased 100 of these guns by 1910, forming the backbone of Mexican Army artillery during the period. The gun is a screw breech rapid fire piece, using fully self-contained ammunition (both shrapnel and HE projectiles). It fires a 12-16 pound shell at about 1650 fps, with a range of about 6500 meters.

In September 1914 the French government panic-ordered a batch of these guns, but then reconsidered and cancelled its order in favor of simplifying logistics with just the more common Mle 1897 75mm guns. That decision changed again in 1915, with an order for 200. These were not formally classified by the French Army, but St Chamond called them the Mle 1915. The gun was identical to the original Mexican pattern except revised to use the same ammunition as the Mle 1897 (the classic “French 75”) instead of its original slightly different cartridge. These guns were initially used for general field service, but pulled off the line when it became apparent that their recoil systems were not really able to handle the stresses of the constant firing required. Instead, they were used as the main armament for the initial 210 St Chamond heavy tanks (less the first 48 that did not receive main guns). After these were used up, the Mle 1897 was used instead.

One final element of combat service for the guns took place in 1948, when Mexico sold 32 of them to Israel, where they were used in Israel’s war of independence. Three examples remain on display in Israeli museums today, more than anywhere else. The one I am looking at today is a Mexican contract piece made in 1904, registered in the US as a live and transferrable Destructive Device.
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QotD: “Down-line clear …”

Filed under: Britain, History, Quotations, Railways — Tags: , , , , — Nicholas @ 01:00

In 1957, there was still a railway through the village of Stanford-on-Avon on the cross-country line, now sadly vanished post-Beeching, which linked the West Coast Main Line at Rugby with the Midland Railway’s own main line north at Market Harborough. On our frequent Saturday afternoon cycle rides, Dad and I would often pause at the Stanford level crossing in the hope of seeing a train run past.

On one occasion, noticing us waiting by the gates, the signalman slid open his window and asked us if we’d like to come up and see inside the signal box. I was up those stairs almost before he’d finished his sentence and he treated us both to a conducted tour of a fascinating and beguiling little empire.

When bells started ringing, he explained about the bell code system and announced that there was a cross-country passenger train about to pass through Stanford, without stopping, on its way to Rugby. Suddenly, he asked me: “Would you like to signal this train through the station?”

“Gosh, yes! Of course I would!”

The sequence started by closing the gates on the level crossing. These were the traditional, heavy timber gates, rather than the comparatively minimal lifting-barriers seen today. They were opened and closed by turning a huge ship’s wheel-type contraption in the signal box and it took all my strength, plus more than a little help from the signalman, to turn it sufficiently to get the gates completely closed. This reliance on a direct mechanical linkage is the reason why the signal box had to be immediately adjacent to the gates.

Next, it was the signals, which were operated by a system of wires opposed by counterweights. The signalman showed me which levers to pull. I had to pull with all my might to get that red upper-quadrant signal to rise. Pulling the yellow distant signal “off” took even more effort, because its greater distance from the signal box meant that the wire was very long indeed. All these tasks were completed solely by manual devices without any mechanical assistance. It was a technology which hadn’t changed since Victorian times.

After what seemed like a long wait, the train eventually appeared in the distance and I felt so proud, hearing it whistling a greeting. Actually the whistle is a warning device, but I was only eight and I was convinced that the driver was saying “thank you” as he steamed through the station past the signal box, courtesy of my hard work.

And just as it had been with the farm horses, it would not be long before Dr Beeching would sweep away rural railways, together with the way of life which went with them and make such experiences as this impossible.

Whenever I see a railway these days, with everything surrounded by high steel fences, their vertical pales topped with barbarous triple-spikes and further surmounted with coils of barbed wire, together with notices threatening huge fines for trespass, I’m reminded of just how lucky I was to grow up in a time when a signalman could invite a child and his father to join him and give them a singular experience which they would both remember for the rest of their lives.

Brian Meredith, “A 1950s childhood, Part 2: ‘Down-line clear …'”, The Conservative Woman, 2026-05-31.

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