Cold War Weapons: The Off-Route Mine

During the Cold War NATO was understandably interested in capable anti-armour weapons. In this video/article we will examine the Off-Route Mine which features in footage from several British Army training films. They show a team of Royal Engineers setting up an L14A1 off-route mine ready to ambush attacking Soviet tanks.

Unlike a conventional mine which detonated vertically when a vehicle drove over it, the Off-Route Mine would be tripped by a breakwire set across a vehicles likely path. When the wire was tripped or broken the mine’s charge would be electrically detonated and the blast would project horizontally.

What the British termed the L14A1 was developed in the early 1970s by France’s state arsenals. In French service it was known as the ‘Mine Anti char à action horizontale Modèle F1′ (or MI AC AH F1). It was manufactured throughout the 1970s and 80s by GIAT Industries.

The mine was essentially an electrically fired shape charge, it used the Misznay-Schardin effect rather than the Monroe effect. The former relies on a shallower, concave shape charge, which has a copper cone that is super heated by the explosion and fired out towards the target. This gave it the ability to project its cone further and removed the need for it to detonate in contact with the target vehicle.

*An illustration of how the Off-Route Mine works from a British Army manual*

The mine had an effective range of between 70 to 80 metres and according to the 1977 French manual the projectile created by the detonation could travel up to 6km. In terms of the mine’s effectiveness the same manual states that 40m was the optimal range but no closer than 2m.

The manual also notes that “the slightest obstacle in the trajectory of the projectile (such as earth or shrubs) considerably reduces performance.” The diagram below from a 1977 French Army manual shows the effect of the mine on 70mm of armour at 40m, with 0-degrees of angle.

*Effect diagram from 1977 French Army manual*

When detonated the mine could throw fragments in a radius of 100m and could throw armour shards from a successful strike up to 200m from the target. The British mines came in the L27A1 kit which included a pair of the L14A1 off-route mines as well as instructions, the break wires, a night sighting tool, and an adjustable stand for mounting.

The mine’s electorally-powered detonator was powered by D cell batteries, which Sappers complained had to be frequently changed. The mine itself weighed 12kg and was packed with just over 6kg of Hexolite explosive. There was also a training version, the L28A1, which fired a paint-filled sponge to mark the side of the vehicle and confirm a hit.

*A Sapper setting up an Off-Route Mine (IWM)*

The Miacah F1 was removed from French service in 2001. An improved version, the F2, was manufactured in 1996 and used by the French until the mines were withdrawn in 2004 due to corrosion. While some mines may have remained in stores, as some have been seen as late as 2016, they contravened the 1997 Ottawa Treaty on anti-personnel mines because the break wire could in theory be tripped by a human rather than a vehicle.

It was replaced in British service by the ARGES off-round Anti-Tank Mine which fired a modified 94mm rocket with a tandem HEAT warhead. In 1997 it was reported that 4870 Off-Route mines were held by British Army stores, in line with the Ottawa Treaty this had been reduced to 0 by 1999.

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Bibliography:

Landmine Monitor Report, 2004, Landmine & Cluster Munition Monitor, (source)
Landmine Monitor Report, 2000, Landmine & Cluster Munition Monitor, (source)
CNEMA Report, 2000 (source)
British Army User Handbook, Mine Anti-Tank Kit L27A1 (Off Route Mine), 1980
French Army MIACAH F1 Manual, 1977

Footage:

Fighting In Woods, British Army training film, 1982, (held by the IWM, DRA 1472)
Fighting In Villages, British Army training film, 1979, (held by the IWM, DRA 1401)

Making Mills Bombs

The No.36 or Mills Bomb was one of the longest serving grenades, developed during the First World War it originated from a Belgian design by Albert Dewandre and Capitaine Léon Roland. It was improved by a British industrialist, William Mills, who owned several metal forging factories.

It entered service in late 1915 as the No.5 Mk1 and continued to be improved during the war with several iterations before it finally became the No.36M Mk1. We’ll look at the Mills bombs development more closely in a future video/article – today, with the help of some 1940s newsreels from New Zealand we’re going to look at how they were manufactured. While the newsreel doesn’t state the factories featured they were made by a number of factories including Anderson Engineering in Christchurch (these were marked with an “A” below the filler plug), Booth Mcdonald, of Christchurch (marked BM), Scott Brothers, also of Christchurch (marked SB), and Mason & Porter, of Mt Wellington, in Ackland (marked MP).

*William Mills’ 1916 Patent for the grenade.*

In the first newsreel, courtesy of Archives New Zealand (Weekly Review No. 70 (1943)), we see No.36 grenades being cast – the newsreel takes a slightly humorous approach of describing the process as a recipe – making ‘pineapples’ – a slang name by which grenades were sometime’s known. The factory is using the sand casting method with a pattern pressed into the sand and then removed. The two halves of the grenade’s body are pressed into sand, a pressed sand core could then be placed inside which would allow the grenade’s body to be poured hollow to allow room for explosives and detonator. If we again pause here we can see a machinist is centring and counter-sinking the filling hole’s first thread for its plug.

*Cast grenade bodies ready for filling (Archives New Zealand)*

The footage includes a brief shot we see a woman factory worker drilling out the top of the grenade’s body and perhaps de-burring the side of the safety lever holder. In the next shot we see more machinists at work with one lady linishing the body of the grenade, removing imperfections from the casting on a grinder or polishing wheel and in the background some women a working on milling machines or drill presses.

*Women factory workers linishing the grenade body castings (Archives New Zealand)*

At the very end of the film we can see the grenade bodies are stacked ready for the next phase of production. Sadly, we don’t see the threading of the filling hole or base in this film nor the painting or filling of the grenades.

In the second newsreel (Weekly Review No. 63 (1942)), however, which celebrates the production of 1 million grenades, we do seem more of the production process. In this short segment we see how the grenades are filled and how they work. We see the cast bodies of the grenades being transported on a conveyor after being shellacked to keep moisture out. If we pause here we can see this worker packing a case with “gascheck” discs and fuses.

*Loading grenades, fuses and gas checks into a transit case (Archives New Zealand)*

The gas check disc and a 7 second fuse was used when the grenade was being fired from a rifle’s cup discharger, while a 4 second fuse was favoured when throwing by hand. In this final clip we see the internals of a grenade – which was filled with just over 2oz of explosive through the round filling-hole (on the side opposite the safety lever) which was then screw plugged. The newsreel then concludes the grenade segment by showing the striker spring inside being compressed and a No.27 Detonator, with fuse, being inserted into the sectioned grenade.

We’ll examine more British grenades, including the No.36 in future videos and articles.

Bibliography:

Weekly Review No. 63 (1942)

Weekly Review No. 70 (1943)

W. Mills, ‘Grenade and Other Like Apparatus’, 4 Apr. 1916, US Patent #1178092, (source)

NZ Mills Grenades, Lexpev.nl, (source)

No.36 Mk1 Grenades, MillsGrenades, (source)

Rare Prototype Spotted In Action: MCEM-2

Recently, while looking though British Army Cold War training films, I stumbled upon something I never expected to see: a clip of an MCEM-2 firing! I was searching through British Cold War training films and watching a 1953 film titled ‘Village Clearing’ at first it seemed pretty standard fair albeit showing an impressive set-piece of tanks attacking a village. And then about 8 minutes in I spotted something unusual, the prototype MCEM-2, in the hands of one of the village’s defenders.

*A screen capture of the MCEM-2 from ‘Village Clearing’, © IWM DRA 1078, (source)*

The 1953 training film shows a company size attack by the Royal Welch Fusiliers on an enemy strongpoint but then shows a section/squad assault on a building. The opposing force or OPFORCE are wearing airborne HSAT helmets and are armed with American weapons including M1 Garands, some first pattern M1918 BARs and a lone MCEM-2! This was likely done to differentiate the British troops from the OPFORCE – either they wanted a generic look or didn’t have any soviet weapons or kit available as is seen in later training films. My guess would be that the prototype may have come from the British Army’s Small Arms School Corps Collection which has historically maintained a working collection of foreign, historic and prototype weapons for familiarisation and training purposes.

A screen capture from ‘Village Clearing’ showing a section of Fusiliers preparing to attack, © IWM DRA 1078, (source)

The MCEM-2 or Machine Carbine, Experimental Model No.2 was developed by a Polish engineer, Jerzy Podsedkowski. Work on the design began in 1944 but it was not seriously tested until after the end of the war. We can see from this brief clip that Podsedkowski’s design was small, compact and innovative. It fed from an 18 round magazine which like the later Uzi, Sa.23 and RAK Pm.63 was inserted into the pistol grip. While this kept the weapon compact and theoretically holster-able the MCEM-2’s high rate of fire, around 1,000 rounds per minute, meant that it was expended extremely rapidly.

*The MCEM-2 disassembled (via Firearms.96.lt)*

The MCEM-2 (Machine Carbine Experimental Model No.2) was a small, compact, innovative design. The weapon had a holster stock and a wrap-around breech block which was inclosed in a tube metal receiver. We can see the bolt in this photograph. In 1946 Podsedkowski, assisted by another Polish engineer, Aleksander Ichnatowicz, improved the MCEM-2, seeking to slow its rate of fire with a heavier bolt. The MCEM-2 was tested at the Royal Navy’s Gunnery School at HMS Excellent in August 1946. Excellent’s Commandant Michael Le Fanu, later an admiral and First Sea Lord, noted in his report that it was a “well engineered weapon, handy to carry about and suitable for use by seamen” but did note that “the high rate of fire makes the weapon uncontrollable in automatic and dangerous in the hand of semi-skilled users.”

Despite improvements the new MCEM-6 was eventually rejected with a Harold Turpin design favoured before it too was rejected. Hopefully, we’ll be able to take a look at some of these designs upclose in future articles/videos.

My thanks to Firearms.96.it for their assistance.

Sources:

‘Village Clearing’, IWM, (source)

MCEM-2, Firearms.96.lt, (source)

MCEM-2, Historical Firearms, (source)

Ruger Mini-14: The Royal Bermuda Regiment’s Service Rifle

Formed in 1965 the Royal Bermuda Regiment (RBR) is a territorial line infantry battalion, whose primary role is internal security. The regiment is essentially a territorial or Army Reserve battalion with around 600 part-time troops. Bermuda itself is a British Overseas Territory and is one of several territories to have its own British Army overseas regiments. Initially equipped with the British Army’s L1A1 self-loading rifle, the Mini-14 was selected by the Royal Bermuda Regiment in 1983 to replace the L1A1. The 1980s saw a number of other British Army affiliated units move away from the L1A1, with the Falkland Islands Defence Force selecting the Steyr AUG.

*A Royal Bermuda Regiment recruit with a Mini-14, c.2012 (RBR)*

The Mini-14 GB (Government Barrel) semi-automatic rifle was purchased from Ruger. The Mini-14 GB had a thicker profile barrel with a a flash hider and mounting lug for the US M7 bayonet. The Royal Bermuda Regiment issued the Mini-14s with 20 round magazines. They were initially shipped with standard wooden stocks but in the early 1990s black polymer stocks with pistol grips were procured from Choate. Another unique attribute of the Regiment’s Mini-14s is the regimental crest stamped on the left side of the receiver. Less than a thousand rifles were produced for the Royal Bermuda Regiment.

In terms of drill with the Mini-14 it is unclear what drill the RBR adopted with the wooden-stocked rifles though it likely drew on British Army drill with Lee-Enfield pattern rifles. Since the refitting of the rifles with the Choate stock it appears that the Regiment adapted the drill laid down for the L1A1. Both rifles have pistols grips, long butt-stocks and exposed barrels which project from the forend.

*A Royal Bermuda Regiment recruit reassembling a Mini-14, c.2012 (RBR)*

The Mini-14 was developed in the late 1960s by L. James Sullivan and William Ruger, chambered in .223 Remington / 5.56x45mm it is a gas operated rifle with a rotating bolt. The rifle was essentially developed as a scaled-down M14 with a cast receiver and a simplified gas system and bolt.

*Soldiers of the Royal Bermuda Regiment, c.1993, (Seán Pòl Ó Creachmhaoil)*

The search for a weapon to replace the Ruger began in the 2010s with the German Heckler & Koch G36 and the US M4 both being tested. The HK G36 was selected but budget constraints saw the British L85A2 adopted instead. In 2012 the Royal Bermuda Regiment had entered into an agreement with the UK’s Ministry of Defence procurement office to allow purchase of some equipment such as the new Multi-Terrain Pattern (MTP) uniforms which replaced Combat Soldier 95 DPM uniforms. It was announced that in the future other personal equipment including boots, body armour and webbing could also be procured via the UK procurement system. This closer cooperation likely paved the way for adoption of RBR configuration L85A2s. The rifles, along with 1,600 magazines and over 400 ACOGs were donated to the regiment. News reports at the time stated the value of the donated equipment was $1.4 million. The switch to the L85A2 began in 2015 and was completed in early 2016.

The rifles appear to have the HK-designed conventional L85A2 plastic hand guards instead of the 2009 A2 configuration which saw the instillation of the Daniel Defence railed forend. The SUSAT sight has been replaced by an ACOG, most commonly seen on what became known as the Theatre Entry Standard (or TES) upgraded rifles. The Bermudan SA80 has a riser picatinny rail for mounting the optic, this was initially developed for British issue L85A2s. In British service the ACOG had been procured earlier first for special forces use and subsequently as a wider urgent operational requirement.

*An RBR L85A2 is handed back into the armoury, c.2017 (RBR)*

On top of the ACOG is a CQB red dot sight, the ACOG has subsequently been replaced in British service by the ELCAN Spectre. The ACOGs donated to the Royal Bermuda Regiment probably came from surplus stores. We can see on some of the photos released by the regiment that the ACOGs are marked ‘IW-LSW’ indicating that they may have previously been paired with the British Army’s L85 Individual Weapon and the L86 Light Support Weapon.

*Recruits introduced to the L85A2, note the sight riser with ACOG mounted (RBR)*

*A Royal Bermuda Regiment recruit at the range with an L85A2, note the IW-LSW marking on the side of the ACOG (RBR)*

The Royal Bermuda Regiment’s intriguing use of the Mini-14 represents one of the few military procurements of the rifle.

This video/article was adapted from my original article over at www.historicalfirearms.info

Bibliography:

RBR Recruits at the range with Mini-14s c.2013, BDA Sun, (source)

Rifles worth $1.4m donated to Regiment, Royal Gazette, (source)

RBR Soldiers Get to Grips with Rifles, RBR, (source)

Regiment Soldiers Continue Training Overseas, BerNews, (source)

Island Warrior 15 B-Roll, USMC/Staff Sgt. Albert J. Carls, (source)

Royal Bermuda Regiment Training, USMC/Lance Cpl. Joel Castaneda, (source)

50 Years Strong! The Royal Bermuda Regiment at 50, Royal Bermuda Regiment, (source)

‘Regiment’s New Uniforms’, BerNews, (source)

Thorneycroft To SA80, J. Ferguson (2020)

Vickers Gun In The Rhineland

In this final video of the Rhineland Campaign Weapons series we take a look at the little known role of the British and Commonwealth forces’ Vickers Guns. With the help of the Vickers MG Collection & Research Association we recreated a platoon line consisting of 4 Vickers Guns to recreate the Pepperpot tactics used during Operation Veritable – the western Allies’ invasion of Germany.

In this video we examine how Vickers Medium Machine Guns were used en masse to soften up enemy positions before Operation Veritable began and during the subsequent advance into the Rhineland. The Vickers was used alongside artillery, mortars and even anti-aircraft guns in what was known as a ‘pepperpot’ fire plan – where the focus was on weight of fire. The Vickers supported the advance through out the campaign and in this video we aimed to capture some of the feel of what those pepperpot bombardments might have been like – albeit on much, much smaller scale.

Using contemporary photographs and footage we recreated the gun pits, complete with overhead cover, pits dug to the original manuals and plenty of empty belts and belt boxes. Right down to the gun crews being badged up as Middlesex Regiment. Check out the comparison of our shoot and a contemporary photograph taken during the battle for Goch, 20 February 1945.

Below are some behind the scenes photos from the shoot taken by myself and Robbie McGuire:

A huge thank you to everyone who made the shoot possible, I’m very proud of what we were able to achieve with this shoot.

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Fighting On Film: Cold War British Army Training Films – Soviet Encounter & Fighting In Woods

Grab your SLR and LAW 80 and jump in the back of the FV432, the Soviet 3rd Shock Army is on the advance! This week we dive into a pair of British Army training films Fighting In Woods (1982) and Soviet Encounter (1983) with Dr. Kenton White – an expert on the Cold War British Army. These well-made films show a potential (and somewhat optimistic) scenario of how the British Army would have fought the Warsaw Pact if the Cold War had ever gone hot!

The episode is also available on all other podcast platforms, you can find them here.

Here are some stills from the film:

If you enjoy the podcast then please check out our Patreon here. Be sure to follow Fighting On Film on Twitter @FightingOnFilm, on Facebook and don’t forget to check out www.fightingonfilm.com.

1966 Soviet Weapons Recognition Guide

During the Cold War the British Army on the Rhine was deployed in West German. In anticipation of a conflict with the Soviet Union detailed recognition guides were written for British troops to identify and familiarise themselves with enemy weapons and equipment. A substantial series of these were written covering everything from small arms to artillery to vehicles and aircraft.

In this video and article we will examine ‘Recognition Handbook Foreign Weapons and Equipment (USSR) Group III Infantry Weapons’ originally published in August 1966. It covers pistols, carbines, rifles, light, medium and heavy machine guns, grenades and some infantry anti-tank weapons like the RPG-2.

The Recognition Handbook is about 100 pages long while the wider series encompasses 12 booklets at approximately 1,200 pages. Each entry in the handbook includes general description of the weapon, its characteristics and recognition features to help identify it. The Handbooks are more detailed version of the smaller Threat Recognition Guide booklets which we have looked at previously.

The video includes clips from a 1979 British Army training film made by the School of Infantry.

Below is the two page entry covering the ‘7.62mm Assault Rifle Kalashnikov (AK-47)’ with a general description, characteristic and some recognition features.

Sources:

‘Recognition Handbook Foreign Weapons and Equipment (USSR) Group III Infantry Weapons’, British Army, 1966
Warsaw Pact Small Arms’, British Army, 1986, (source)

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The No.4 Rifle in the Rhineland

Earlier this year I had the pleasure of filming some segments on small arms for the new documentary on the Rhineland Campaign – ‘Rhineland 45‘. Not all of the segments I filmed discussing weapons could be included in the finished documentary – I filmed quite a few – so I’m pleased to share a couple here. This short video examines the Rifle No.4 (Lee-Enfield) used by British and Canadian troops during Operations Veritable and Varsity. This video was filmed at the Vickers MG Collection and Research Association.

Check out the first video of this series on the use of the PIAT here and our video on the Panzerfaust & Panzerschreck in the Rhineland here and our video on the STENs used in the Rhineland.

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The STEN in the Rhineland

Earlier this year I had the pleasure of filming some segments on small arms for the new documentary on the Rhineland Campaign – ‘Rhineland 45‘. Not all of the segments I filmed discussing weapons could be included in the finished documentary – I filmed quite a few – so I’m pleased to share a couple here. This video examines the various marks of STEN gun used during Operations Veritable and Varsity. This video was filmed at the Vickers MG Collection and Research Association.

Check out the first video of this series on the use of the PIAT here and our video on the Panzerfaust & Panzerschreck in the Rhineland here.

If you enjoyed this video and article please consider supporting our work here. We have some great perks available for Patreon Supporters. Thank you for your support!

A PIAT from Arnhem

Last weekend at the We Have Ways podcast’s history festival the Airborne Assault Museum brought along a very interesting piece of history – a PIAT with Arnhem provenance. The PIAT had allegedly been dropped during Operation Market Garden but not used. At some point after the battle it was discovered by locals and handed into the Doorwerth Castle Museum, the original airborne museum before it moved to the Hartenstein, and was subsequently gifted the the UK’s Airborne Assault Museum in the 1950s.

*Discussing the PIAT with Ramsay of the Airborne Assault Museum (Matthew Moss)*

The museum believes the PIAT has much of its original paint and in general the weapon is in excellent shape. It has the earlier rear sight with two apertures for 70 and 100 yards, the later design had three – with a maximum range of 110 yards. This PIAT’s monopod could still be raised and lowered, to elevate the weapon upto 40-degrees for indirect firing.

*A close up of the PIAT (Mattthew Moss)*

The indirect fire quadrant sight is in good condition – complete with its spirit level. The weapon also appears to have its original white indirect fire aiming line along the top of its body and almost pristine webbing – though the butt cover is frayed which isn’t uncommon. Sadly the weapon has been deactivated so we couldn’t open up the action or cock the weapon. It seems to have been welded at the front and rear of the body.

The PIAT is in great shape, albeit deactivated, and it was a pleasure to take a look at a weapon which could be traced back to the battle. Thank you to Ramsay, Ben and Allen of the Airborne Assault Museum for allowing me to examine and film the PIAT, check out the museum’s website here.

Click here for more articles and videos on the PIAT.

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