Forgotten Weapons
Published 23 May 2017The PM9 was an interesting an unique submachine gun designed by Louis Debuit for the French firm Merlin and Gerin (hence the MGD name – Merlin, Gerin, Debuit) in the late 1940s and early 50s. The design was intended to provide a very compact package, which it did with a very short action, folding stock, and folding magazine.
The PM9 uses a delayed blowback action, and the delaying is done by a rotating flywheel-type block and clock spring. The bolt and flywheel act somewhat like the piston and crank in an engine. As the bolt (piston) moved rearward in a straight line, it forces the flywheel (crank) to rotate because the two are connected. In the case of the PM9, the connection is a nub on the flywheel that rides in a vertical slot in the bolt. The flywheel is pushing against the clock spring to rotate, and the combination of the its inertia and spring pressure keep the bolt closed long enough for pressure to drop to a safe level. The rotary action allows this to be done in a much smaller package than typical submachine guns.
The PM9 was initially chambered for 7.65 French Long, but quickly changed to standard 9mm Parabellum for the production models. It used the same magazine as the German MP38/MP40, giving it a 32-round capacity. In addition to the model with a skeletonized folding stock, the PM9 was also available with a fixed wooden stock and either short barrel of long carbine barrel. A relatively small number of guns were produced in France in 1954 and 1955, but they failed to find commercial success. In 1956 the German Erma company acquired a license to build the PM9, but abandoned the idea after making a few prototypes.
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October 1, 2023
MGD PM9 Rotary-Action Submachine Gun
September 28, 2023
Gaulois Palm Pistol
Forgotten Weapons
Published 23 Nov 2014The Gaulois (Gallic) was a compact squeeze-type palm pistol made by the Manufrance concern in St. Etienne in the 1890s. It held 5 rounds of 8mm ammunition (similar to the .32 Extra-Short used in other types of palm pistols) and was fired by squeezing the rear grip into the body of the gun.
As with the other weapons of this type that achieved some popularity in the 1880s through early 1900s, the Gaulois eventually faded from the market because of the improvements in conventional handguns. Something like a compact Iver Johnson revolver offered all the capabilities (if not more) of a Chicago Protector or My Friend or Gaulois, without the loading and aiming difficulties of those designs.
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September 27, 2023
Knock Out: The Evolution of Tank Ammunition
The Tank Museum
Published 8 Jun 2023Tank ammunition has gone a long way from basic solid armour piercing shot to the high-tech fin rounds of today. In this video we look at the development of tank ammo in its different forms and how it has evolved from the First World War to the modern battlefield.
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September 25, 2023
Girardoni Air Gun (original 1780 example)
Forgotten Weapons
Published 7 Jun 2014The Girardoni (also spelled Girandoni) air rifle was a very advanced design adopted in 1780 by the Austrian Army. While the standard arm of the day was a single-shot flintlock, the Girardoni offered a massive firepower advantage to the men who carried it. The guns (designed by Bartholomäus Girardoni, of Vienna) had a magazine capacity of 22 round balls, which could all be fired within 60 seconds. The balls were .46 caliber, weighing approximately 153 grains, and were propelled at 400-450 feet per second. They were rumored to be silent, but actually had a loud report (although quieter than gunpowder firearms). One of these rifles was carried by the Lewis & Clark expedition into the American West.
The Austrian Army used them for a relatively short time — they were taken out of service by Imperial order in 1788, and issued back to Tyrolian sniper units only in 1792. The reasons for their replacement were more logistical than the result of any actual shortcoming with Girardoni’s design. The problem was that they required special training to use (compared to a normal firearm), required specially trained and equipped gunsmiths to repair and maintain, and difficulty maintaining them in combat conditions. Dr. Robert Beeman has written an outstanding illustrated article on Austrian airguns in general and the Girardoni in particular, which I highly recommend for anyone interested in more detail on these fascinating weapons:
http://www.beemans.net/Austrian%20air…
However, I am privileged to be able to share with you this video of an original 1780 Girardoni put together by Luke Haag for presentation at the 2014 AFTE conference in Seattle. Mr. Haag does a great job explaining the operation of the gun, its capabilities and accessories.
September 22, 2023
MAS 49: A Universal Service Rifle
Forgotten Weapons
Published 20 May 2019As the MAS 44 saw combat service with French Marines in Indochina, some of its shortcomings began to reveal themselves. The rifle was reliable and durable, but it lacked some capabilities, most importantly rifle grenade launching and an optics mounting. After a test series of MAS 44A rifles, a new pattern was adopted as the MAS 49 and put into production in 1951.
A total of about 80,000 MAS 49 rifles were made, and they incorporated a scope mounting dovetail in the left side of the receiver and a grenade launching muzzle device and sight. In addition, the bayonet was left out, as it was no longer seen as necessary. Not all rifles were used with scopes or for launching grenades, but with the universal capability it was simple to adapt any rifle to whatever specialized role was required. Ultimately the MAS 49 would be replaced again in only a few year, by the MAS 49-56 iterative improvement — but that’s a subject for a future video.
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September 20, 2023
Wire Guided Tank Killer | Swingfire | Anti-Tank Chats
The Tank Museum
Published 2 Jun 2023In this video, Chris Copson looks at the Swingfire, a Cold War period anti-tank guided weapons system. This powerful and hard-hitting missile was mounted on vehicles including Striker, Ferret, and FV 432. With a range of up to 4km, it had the significant advantage that it would outrange tank guns and could be fired remotely by the controller, enabling the launch vehicle to remain in cover.
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September 16, 2023
The many, MANY failed VW Beetle Reboots!
Big Car
Published 22 Oct 2021I recently made a video on the many, many times British Leyland tried to update the Mini. The lack of an update helped to make the original Mini an iconic shape. The same has happened to many other iconic cars, and the Volkswagen Type 1 or Beetle falls into the same camp. Why did it take 36 years until the Beetle would get a replacement, and how did a car made as a Nazi show of strength end up in a Disney film?
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September 15, 2023
Brun-Latrige Model 1900
Forgotten Weapons
Published 14 Apr 2016Patented in 1896, this is one of several models of unique pocket pistols designed by Paul Brun-Latrige. He was a manager of the Manufrance company located in St. Etienne France, a large mail-order catalog company that produced a wide variety of products. Early versions of this pistol used a ring trigger mechanism and a 5mm cartridge, while this one uses a folding trigger and is chambered for an 8mm round (the same ammunition used in Manufrance’s Gaulois palm pistols, I suspect).
September 12, 2023
Mannlicher 1894
Forgotten Weapons
Published 26 Sept 2015The Mannlicher 1894 is one of a small number of firearms designed with a blow-forward action, and also the first of these guns. It was the creation of Ferdinand Mannlicher, a brilliant and prolific Austrian inventor who is also responsible for the en-bloc clip concept, very early experimental semi-automatic rifles, and a line of turnbolt and straight-pull rifles used widely throughout Europe.
The 1894 was made only in small numbers — about 100 each in 6.5mm and 7.8mm (this one is in 6.5mm). They were tested by the US military as well as other nations, but not adopted by anyone. While they were bleeding-edge new technology at the time, they were also really not better than traditional revolvers from a practical military perspective. That doesn’t prevent them from being a fascinating cul-de-sac of firearms development though!
September 8, 2023
Johnson M1941 rifle
Forgotten Weapons
Published 8 Dec 2013Melvin Johnson was a gun designer who felt that the M1 Garand rifle had several significant flaws — so he developed his own semiauto .30-06 rifle to supplement the M1. His thought was that if problems arose with the M1 in combat, production of his rifle could provide a continuing supply of arms while problems with the M1 were worked out. The rifle he designed was a short-recoil system with a multi-lug rotating bolt (which was the direct ancestor of the AR bolt design). When the Johnson rifle was tested formally alongside the M1, the two were found to be pretty much evenly matched — which led the Army to dismiss the Johnson. If it wasn’t a significant improvement over the Garand, Ordnance didn’t see the use in siphoning off resources to produce a second rifle.
The Johnson had some interesting features — primarily its magazine design. It used a fixed 10-round rotary magazine, which could be fed by 5-round standard stripper clips or loose individual cartridges. It could also be topped up without interfering with the rifle’s action, unlike the M1. On the other hand, it was not well suited to using a bayonet, since the extra weight on the barrel was liable to cause reliability problems (since the recoil action has to be balanced for a specific reciprocating mass). Johnson thought bayonets were mostly useless, but the Army used the issue as a rationale to dismiss the Johnson from consideration.
However, Johnson was able to make sales of the rifle to the Dutch government, which was in urgent need of arms for the East Indies colonies. This is where the M1941 designation came from — it was the Dutch model name. Only a few of the 30,000 manufactured rifles were delivered before the Japanese overran the Dutch islands, rendering the rest of the shipment moot.
At this point, Johnson was also working to interest the newly-formed Marine Paratroop battalions in a light machine gun version of his rifle. The Paramarines needed an LMG which could be broken down for jumping, light enough for a single man to effectively carry, and quick to reassemble upon landing. The Johnson LMG met these requirements extremely well, and was adopted for the purpose. The Paramarines were being issued Reising folding-stock submachine guns in addition to the Johnson LMGs, and they found the Reisings less than desirable. Someone noticed that thousands of M1941 Johnson rifles (which could also have their barrel quickly and easily removed for compact storage) were effectively sitting abandoned on the docks, and the Para Marines liberated more than a few of them. These rifles were never officially on the US Army books, but they were used on Bougainville and a few other small islands.
September 6, 2023
Radical or Ridiculous? | T-14 Armata | Tank Chats #171
The Tank Museum
Published 26 May 2023In this Tank Chat, David Willey takes a detailed look at a vehicle that has garnered significant interest and controversy — The Russian T-14 Armata. David explores why this vehicle draws so much attention, and how it has taken a radical departure from previous Soviet design philosophy.
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September 1, 2023
Nylon 66: Remington’s Revolutionary Plastic Rifle
Forgotten Weapons
Published 19 May 2023In the 1950s, Remington decided that it needed an inexpensive new .22 self-loading rifle to add to its catalog. In looking at how to reduce the cost of such a rifle, they hit upon the idea of using polymer to replace the wooden furniture typically used — and to replace the metal receiver as well. Remington was owned by DuPont at the time, and DuPont had developed an excellent strong polymer which they called “Nylon” — specifically, Nylon composition number 66.
Remington engineers developed a massively complex and expensive mold to inexpensively stamp out monolithic polymer .22 rifles in the mid 1950s. They knew this design would cause concern to a large part of their market because of its non-traditional construction, and so they put the new rifles through hundreds of thousands of rounds of grueling testing. It passed these trials with flying colors, and was released in January 1959 to pretty rave reviews. By the time it was finally taken out of production in 1987, more than 1,050,000 of them had been produced — a fantastic success on a pretty big gamble.
Thanks to Dutch Hillenburg for loan of this example to show you!
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August 31, 2023
Why New York Destroyed 3 Iconic Landmarks | Architectural Digest
Architectural Digest
Published 6 Apr 2023Michael Wyetzner of Michielli + Wyetzner Architects returns to AD, this time to look at the history and creation of three New York City landmarks that have since been demolished — but are far from forgotten. From the once (and future?) majesty of Penn Station to the New York Herald building and the original 19th-century Madison Square Garden, Michael gives expert insight into these three historic architectural landmarks, why they were laid to ruin, and what came to replace them.
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August 23, 2023
Slovenian SAR80: Sterling Out-Simplifies the AR-180
Forgotten Weapons
Published 15 May 2023The British Sterling firm designed the SAR-80 (specifically, their engineer Frank Waters) as a very simple rifle to sell to countries outside the main NATO/Warsaw Pact spheres of influence. Sterling ended up getting a license to produce the AR-18 though, and didn’t put Waters’ design into production.
When the newly formed Chartered Industries of Singapore came looking for a rifle to produce, the SAR-80 design was a chance for Sterling to sell a production license. CIS needed something to produce domestically to equip the Singaporean Army, and the SAR-80 met their needs. After selling the rifles to their own Army, the company went looking for export clients. They found a few, including Croatia, the Central African Republic, and Slovenia. A total of about 80,000 SAR-80 rifles were made, and this is one of the Slovenian-contract examples.
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August 20, 2023
1908 Japanese Hino Komura Pistol
Forgotten Weapons
Published 26 Feb 2012The Hino-Komuro pistol (sometimes spelled Komura) was developed by a young Japanese inventor named Kumazo Hino, and financed by Tomijiro Komuro in the first decade of the 20th century. The gun uses a virtually unique blow-forward mechanism, which makes it very interesting to study. The rear of the receiver houses a fixed firing pin, and the barrel is pushed forward upon firing. To cock the gun, the barrel is manually pulled forward about one inch (using serrations on the exposed front section of the barrel). As the barrel is pulled forward, it pulls with it a follower that pulls a cartridge forward out of the magazine and lifts it up into the axis of the bore. When the grip safety and trigger are depressed, the barrel is snapped backwards into the action by a spring. The ready cartridge is chambered and driven backwards with the barrel onto the fixed firing pin.
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