A mine roller or ''mine trawl'' is a

demining Demining or mine clearance is the process of removing land mines from an area. In military operations, the object is to rapidly clear a path through a minefield, and this is often done with devices such as mine plows and blast waves. By contra ...

device mounted on a

tank A tank is an armoured fighting vehicle intended as a primary offensive weapon in front-line ground combat. Tank designs are a balance of heavy firepower, strong armour, and good battlefield mobility provided by tracks and a powerful engin ...

armoured personnel carrier An armoured personnel carrier (APC) is a broad type of armoured military vehicle designed to transport personnel and equipment in combat zones. Since World War I, APCs have become a very common piece of military equipment around the world. Acc ...

, designed to detonate anti-tank mines. It allows engineers to clear a lane through a minefield which is protected by enemy fire. The device is usually composed of a fork or two push arm assemblies fitted to the front of a tank hull, with two banks of rollers that can be lowered in front of the tank's tracks. Each roller bank has several heavy wheels studded with short projecting steel girders, which apply a higher

ground pressure Ground pressure is the pressure exerted on the ground by the tires or tracks of a motorized vehicle, and is one measure of its potential mobility, especially over soft ground. It also applies to the feet of a walking person or machine. Ground pre ...

than the tank's tracks. This ensures the explosion of pressure-fused anti-tank mines, which would otherwise explode under the track itself.

History

At the end of the

First World War World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, the United States, and the Ottoman Empire, with fightin ...

, the

British Army The British Army is the principal land warfare force of the United Kingdom, a part of the British Armed Forces along with the Royal Navy and the Royal Air Force. , the British Army comprises 79,380 regular full-time personnel, 4,090 Gurk ...

Engineers Major

Giffard LeQuesne Martel Lieutenant-General Sir Giffard Le Quesne Martel (10 October 1889 – 3 September 1958) was a British Army Officer (armed forces), officer who served in both the World War I, First and World War II, Second World Wars. Familiarly known as "Q Marte ...

and Major Charles Inglis experimented with tank bridges and mine rollers based on the

Mark V tank The British Mark V tank was an upgraded version of the Mark IV tank. The tank was improved in several aspects over the Mark IV, chiefly the new steering system, transmission and 150 bhp engine, but it fell short in other areas, particularl ...

. Three special tank battalions were mustered for trials at

Christchurch Christchurch ( ; mi, Ōtautahi) is the largest city in the South Island of New Zealand and the seat of the Canterbury Region. Christchurch lies on the South Island's east coast, just north of Banks Peninsula on Pegasus Bay. The Avon River / ...

Hampshire Hampshire (, ; abbreviated to Hants) is a ceremonial county, ceremonial and non-metropolitan county, non-metropolitan counties of England, county in western South East England on the coast of the English Channel. Home to two major English citi ...

, England, in 1918. Because of the

Armistice An armistice is a formal agreement of warring parties to stop fighting. It is not necessarily the end of a war, as it may constitute only a cessation of hostilities while an attempt is made to negotiate a lasting peace. It is derived from the La ...

, these were never tested in battle, but some development work continued with the Experimental Bridging Company until 1925. After great difficulties caused by minefields in the

Winter War The Winter War,, sv, Vinterkriget, rus, Зи́мняя война́, r=Zimnyaya voyna. The names Soviet–Finnish War 1939–1940 (russian: link=no, Сове́тско-финская война́ 1939–1940) and Soviet–Finland War 1 ...

against Finland, the Soviet

Red Army The Workers' and Peasants' Red Army (Russian: Рабо́че-крестья́нская Кра́сная армия),) often shortened to the Red Army, was the army and air force of the Russian Soviet Federative Socialist Republic and, after ...

assigned P.M. Mugalev at the Dormashina Factory in Nikolayev to design a mine-clearing vehicle. Prototypes were tested based on the

T-28 The T-28 was a Soviet multi-turreted medium tank. The prototype was completed in 1931, and production began in late 1932. It was an infantry support tank intended to break through fortified defences. The T-28 was designed to complement the hea ...

medium tank in 1940. Development was interrupted by the start of

World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposin ...

, but resumed in 1942. T-60 and KV tank chassis underwent trials, but only the

T-34 The T-34 is a Soviet medium tank introduced in 1940. When introduced its 76.2 mm (3 in) tank gun was less powerful than its contemporaries while its 60-degree sloped armour provided good protection against Anti-tank warfare, anti-tan ...

was deemed to have a sufficiently robust transmission and clutch. Experimental detachments of PT-34 mine roller tanks were formed in May 1942, and saw action at

Voronezh Voronezh ( rus, links=no, Воро́неж, p=vɐˈronʲɪʂ}) is a city and the administrative centre of Voronezh Oblast in southwestern Russia straddling the Voronezh River, located from where it flows into the Don River. The city sits on the ...

in August. The first Independent Engineer Tank Regiment with eighteen mine rollers was fielded in October 1943. At least five regiments were formed during the war. The PT-34's huge roller fork was semi-permanently mounted on a T-34 or T-34-85 tank. The rollers were usually removed for travel, and only installed for mine clearing operations. Adaptations for later tanks consisted of two lighter arms. The Mugalev system was adopted by U.S. and Israeli forces in the 1980s. During WWII, the Germans created the experimental Raumer S 4-wheeled armoured mine clearance vehicle, built by Krupp. Weighing 130 tons, the prototype was captured by the Americans at the end of the war. The British developed the ''Anti Mine Roller Attachment'' (AMRA) for their

Matilda II The Infantry Tank Mark II, best known as the Matilda, was a British infantry tank of the Second World War.Jentz, p. 11. The design began as the A12 specification in 1936, as a gun-armed counterpart to the first British infantry tank, the machin ...

, Valentine, and

Crusader tank Crusader, in full "Tank, Cruiser Mk VI, Crusader", also known by its General Staff number A.15, was one of the primary British cruiser tanks during the early part of the Second World War. Over 5,000 tanks were manufactured and they made imp ...

s in the desert. The rollers only covered the width of each track rather than clearing a tank-width path for subsequent vehicles and troops. To these were added a

Churchill tank The Tank, Infantry, Mk IV (A22) Churchill was a British infantry tank used in the Second World War, best known for its heavy armour, large longitudinal chassis with all-around tracks with multiple bogies, its ability to climb steep slopes, a ...

with the evocatively named "Canadian Indestructible Roller Device" (CIRD). The British used mine rollers to detect the presence of minefields and then used

mine flail A mine flail is a vehicle-mounted device that makes a safe path through a minefield by deliberately detonating land mines in front of the vehicle that carries it. They were first used by the British during World War II. The mine flail consists of ...

s for the clearance.Fletcher ''The Universal Tank'' HMSO During

, the mine roller most used by US forces was the T1E3 Mine Exploder unit, attached to the

M4 Sherman } The M4 Sherman, officially Medium Tank, M4, was the most widely used medium tank by the Military history of the United States during World War II, United States and Allies of World War II, Western Allies in World War II. The M4 Sherman prove ...

medium tank. It was nicknamed ''

Aunt Jemima Pearl Milling Company (formerly known as Aunt Jemima from 1889 to 2021) is an American breakfast brand for pancake mix, syrup, and other breakfast food products. The original version of the pancake mix for the brand was developed in 1888–188 ...

'' because of it's

pancake A pancake (or hotcake, griddlecake, or flapjack) is a flat cake, often thin and round, prepared from a Starch, starch-based batter (cooking), batter that may contain eggs, milk and butter and cooked on a hot surface such as a griddle or fryi ...

-like appearance. It had two sets of five disc rollers, 10 feet (3 meter) in diameter each.

References

{{Reflist

External links

* GlobalSecurity.org'
page on Mine Clearing Roller System (MCRS)

Armoured fighting vehicle equipment Mine warfare countermeasures

History

See also

References

External links