Mark I tank
Encyclopedia
The British Mark I was a tracked vehicle developed by the British Army
British Army
The British Army is the land warfare branch of Her Majesty's Armed Forces in the United Kingdom. It came into being with the unification of the Kingdom of England and Scotland into the Kingdom of Great Britain in 1707. The new British Army incorporated Regiments that had already existed in England...

 during the First World War and the world's first combat tank
Tank
A tank is a tracked, armoured fighting vehicle designed for front-line combat which combines operational mobility, tactical offensive, and defensive capabilities...

. The Mark I entered service in August 1916, and was first used in action on the morning of 15 September 1916 during the Battle of Flers-Courcelette
Battle of Flers-Courcelette
The Battle of Flers-Courcelette, was a battle within the Franco-British Somme Offensive which took place in the summer and autumn of 1916. Launched on the 15th of September 1916 the battle went on for one week. Flers-Courcelette began with the overall objective of cutting a hole in the German...

, of the Somme Offensive. Born of the need to break the domination of trenches and machine guns over the battlefields of the Western Front
Western Front (World War I)
Following the outbreak of World War I in 1914, the German Army opened the Western Front by first invading Luxembourg and Belgium, then gaining military control of important industrial regions in France. The tide of the advance was dramatically turned with the Battle of the Marne...

, it was the first vehicle to be named "tank", as an expedient to maintain secrecy and to disguise its true purpose. It was developed to be able to cross trenches, resist small-arms fire, travel over difficult terrain, carry supplies, and to capture fortified enemy positions. It is regarded as successful in many respects, but suffered from many problems owing to its primitive nature.

Development

The Mark I was a development of Little Willie
Little Willie
Little Willie was a prototype in the development of the British Mark I tank. Constructed in the summer of 1915 through a close cooperation of the military and industry of the United Kingdom, it was the first completed tank prototype in history...

, the experimental tank built for the Landships Committee
Landships Committee
The Landships Committee was a small British war cabinet committee established in February 1915 to deal with the design and construction of what would turn out to be tanks during the First World War...

 by Lieutenant Walter Wilson
Walter Gordon Wilson
Major Walter Gordon Wilson was an engineer and member of the British Royal Naval Air Service. He was credited by the 1919 Royal Commission on Awards to Inventors as the co-inventor of the tank, along with Sir William Tritton....

 and William Tritton
William Tritton
Sir William Ashbee Tritton, M.I.Mech.E., J.P. was an expert in agricultural machinery, and was directly involved, together with Major Walter Gordon Wilson, in the development of the tank...

 in the summer of 1915. Working on problems discovered with Willie, the Mark I was designed by Wilson. A gun turret above the hull would have made the centre of gravity too high, so the guns were put in sponsons. The prototype Mark I, ready in December 1915, was called "Mother", (previous names having been "The Wilson Machine", "Big Willie", and "HMLS Centipede"). One hundred and fifty of the Mark I were built.

Description

The Mark I was a rhomboid
Rhomboid
Traditionally, in two-dimensional geometry, a rhomboid is a parallelogram in which adjacent sides are of unequal lengths and angles are oblique.A parallelogram with sides of equal length is a rhombus but not a rhomboid....

 vehicle
Vehicle
A vehicle is a device that is designed or used to transport people or cargo. Most often vehicles are manufactured, such as bicycles, cars, motorcycles, trains, ships, boats, and aircraft....

 with a low centre of gravity and long track length, able to grip muddy ground and cross trenches. Sponson
Sponson
Sponsons are projections from the sides of a watercraft, for protection, stability, or the mounting of equipment such as armaments or lifeboats, etc...

s (also called "barbette
Barbette
A barbette is a protective circular armour feature around a cannon or heavy artillery gun. The name comes from the French phrase en barbette referring to the practice of firing a field gun over a parapet rather than through an opening . The former gives better angles of fire but less protection...

s") on the hull sides carried two naval 6-pounder guns
QF 6 pounder Hotchkiss
The QF 6 pounder Hotchkiss was a light 57 mm naval gun and coast defence gun of the late 19th century used by many countries, and was adapted for use in the early British tanks in World War I.- Canada History :...

. There were two Hotchkiss machine gun
Hotchkiss M1909 Benet-Mercie machine gun
The Hotchkiss M1909 machine gun was a French designed light machine gun of the early 20th century, developed and built by Hotchkiss et Cie. It was also known as the Hotchkiss Mark I and M1909 Benet-Mercie....

s in the sponsons and two removable guns for the front and back.

The hull was undivided internally; the crew shared the same space as the engine. The environment inside was extremely unpleasant; the atmosphere was contaminated with poisonous carbon monoxide
Carbon monoxide
Carbon monoxide , also called carbonous oxide, is a colorless, odorless, and tasteless gas that is slightly lighter than air. It is highly toxic to humans and animals in higher quantities, although it is also produced in normal animal metabolism in low quantities, and is thought to have some normal...

, fuel and oil vapours from the engine and cordite
Cordite
Cordite is a family of smokeless propellants developed and produced in the United Kingdom from 1889 to replace gunpowder as a military propellant. Like gunpowder, cordite is classified as a low explosive because of its slow burning rates and consequently low brisance...

 fumes from the weapons as ventilation was inadequate. Temperatures inside could reach 50 °C (122 °F). Entire crews lost consciousness inside the tank or became violently sick when again exposed to fresh air.

To counter the fumes inside and the danger of bullet splash or fragments and rivet
Rivet
A rivet is a permanent mechanical fastener. Before being installed a rivet consists of a smooth cylindrical shaft with a head on one end. The end opposite the head is called the buck-tail. On installation the rivet is placed in a punched or pre-drilled hole, and the tail is upset, or bucked A rivet...

s knocked off the inside of the hull, the crew wore helmets with goggles and chainmail masks. Gas masks were standard issue as well, as they were to all soldiers at this point in the war (see Chemical warfare
Chemical warfare
Chemical warfare involves using the toxic properties of chemical substances as weapons. This type of warfare is distinct from Nuclear warfare and Biological warfare, which together make up NBC, the military acronym for Nuclear, Biological, and Chemical...

). The side armour of 8 mm initially made them largely immune to small arms fire, but could be penetrated by the recently developed armour-piercing K bullet
K bullet
Also: Patrone SmK 8x57mm ISThe K bullet is a 8x57mm IS armor-piercing bullet which has a tool steel core and which was designed to be fired from a standard Mauser rifle. It was used by the German infantry against the first British tanks in World War I...

s. There was also the danger of being overrun by infantry and attacked with grenades. The next generation had thicker armour, making them nearly immune to the K bullets. In response, the Germans developed the 13.2 mm Mauser anti-tank rifle
Anti-tank rifle
An anti-tank rifle is a rifle designed to penetrate the armour of vehicles, particularly tanks. The usefulness of rifles for this purpose ran from the introduction of tanks in World War I and until the Korean War...

, and also a Geballte Ladung ("Bunched Charge")—several regular stick grenades bundled together for a much bigger explosion.

A direct hit on the roof by an artillery or mortar
Mortar (weapon)
A mortar is an indirect fire weapon that fires explosive projectiles known as bombs at low velocities, short ranges, and high-arcing ballistic trajectories. It is typically muzzle-loading and has a barrel length less than 15 times its caliber....

 shell could cause the fuel tanks (which were placed high in the front horns of the track frames either side of the drivers' area, to allow gravity feed) to burst open. Incinerated crews were removed by special Salvage Companies, who also salvaged damaged tanks. They were forbidden to speak about this aspect of their work with still living tank crews.

Steering was difficult; controlled by varying the speed of the two tracks. Four of the crew, two drivers (one of whom also acted as commander; he operated the brakes, the other the primary gearbox) and two "gearsmen" (one for the secondary gears of each track) were needed to control direction and speed, the latter never more than a walking pace. As the noise inside was deafening, the driver, after setting the primary gear box, communicated with the gearsmen with hand signals, first getting their attention by hitting the engine block with a heavy spanner. For slight turns, the driver could use the steering tail: an enormous contraption dragged behind the tank consisting of two large wheels, each of which could be blocked by pulling a steel cable causing the whole vehicle to slide in the same direction. If the engine stalled, the gearsmen would use the starting handle—a large crank between the engine and the gearbox. Many of these vehicles broke down in the heat of battle making them an easy target for German gunners. There was no wireless (radio
Radio
Radio is the transmission of signals through free space by modulation of electromagnetic waves with frequencies below those of visible light. Electromagnetic radiation travels by means of oscillating electromagnetic fields that pass through the air and the vacuum of space...

); communication with command posts was by means of two pigeons, which had their own small exit hatch in the sponsons, or by runners. Because of the noise and vibration, early experiments had shown that radios were impractical, so lamps, flags, semaphore, coloured discs, and the carrier pigeons were part of the standard equipment of the various marks.

During the First World War, British propaganda made frequent use of tanks, portraying them as a wonder weapon that would quickly win the war. They were featured in films and popular songs.

Variants

A requirement was found for two types of armament, so Mark Is were armed either with 6 pounder guns
QF 6 pounder Hotchkiss
The QF 6 pounder Hotchkiss was a light 57 mm naval gun and coast defence gun of the late 19th century used by many countries, and was adapted for use in the early British tanks in World War I.- Canada History :...

 and four machine guns and called "Male" (75) or two Vickers machine guns instead of the 6 pounders and called "Female" (75). Swinton
Ernest Dunlop Swinton
Major General Sir Ernest Dunlop Swinton, KBE, CB, DSO, RE was a military writer and British Army officer. Swinton is credited with influencing the development and adoption of the tank by the British during the First World War. He is also known for popularising the term "no-mans land".-Early life...

 is credited with inventing the terms.

To aid steering, a pair of large wheels were added behind the tank. These were not as effective as hoped and were subsequently dropped.

The subsequent Mark II, III, IV and V and later tanks all bear a strong resemblance to their "Mother".

Mark I

  • Crew: 8
  • Combat Weight
    • Male: 28 tons (28.4 tonne)
    • Female: 27 tons (27.4 tonne)
  • Armour: .23-.47 in (6–12 mm)
  • Armament
    • Male: two 6-pounder QF
      QF 6 pounder Hotchkiss
      The QF 6 pounder Hotchkiss was a light 57 mm naval gun and coast defence gun of the late 19th century used by many countries, and was adapted for use in the early British tanks in World War I.- Canada History :...

      , three 8 mm Hotchkiss Machine Guns
      Hotchkiss M1909 Benet-Mercie machine gun
      The Hotchkiss M1909 machine gun was a French designed light machine gun of the early 20th century, developed and built by Hotchkiss et Cie. It was also known as the Hotchkiss Mark I and M1909 Benet-Mercie....

    • Female: four .303 Vickers Machine Guns, one 8 mm Hotchkiss Machine Gun


The Gun Carrier Mark I
Gun Carrier Mark I
The Gun Carrier Mark I was the first piece of self-propelled artillery ever to be produced, a British development from the First World War.-Development:...

 was a separate design, intended to carry a field gun or howitzer that could be fired from the vehicle. In service it was mostly used for carrying supplies and ammunition. Forty-eight were built.

Mark II

The Mark II incorporated minor improvements over the Mark I. With the Army declaring the Mark I still insufficiently developed for use, the Mark II order would continue to be built but it would be used for training only.
Almost all were built of unhardened steel, but among those at the training ground at Wool, Dorset
Wool, Dorset
Wool is a village in the Purbeck district of Dorset, England. The village has a population of 4,118 , though the population has fluctuated over the past 15 years, due to the proximity of military institutions, reaching a high of 4,300 in 1992. The village lies at a historic bridging point on the...

 some (25) were found to have hardened steel and these were shipped to France, despite the protestations of Stern (see below), and used in the Battle of Arras
Battle of Arras (1917)
The Battle of Arras was a British offensive during the First World War. From 9 April to 16 May 1917, British, Canadian, New Zealand, Newfoundland, and Australian troops attacked German trenches near the French city of Arras on the Western Front....

 in April 1917 because of delays in the production of the Mark I tank.

The Mark II was built from December 1916 to January 1917 by Foster & Co and Metropolitan (25 Male and 25 Female respectively).

Mark III

The Mark III was a training tank, which used Lewis machine guns and a smaller sponson for the females. Fifty were built. It was originally intended that the Mark III have all the proposed new design features of the Mark IV. This is why there were two distinct training types, the Mark II being little more than a slightly improved Mark I. Development of the new features was so slow however, that the change from the Mark II was very gradual. The last two Mark III's were melted down in the Second World War.

Mark IV

Mark IV was an up-armoured version of the Mark I which went into production in May 1917. Fundamental mechanical improvements had originally been intended but these had to be postponed, the main change consisting in the switch to shorter-barrelled 6-pounder guns. It had all fuel stored in a single external tank (located between the rear track horns) in an attempt to improve crew safety. The sponsons could be pushed in to reduce the width of the tank for rail transportation. Rails on the roof carried an unditching beam. A total of 1,220 were built: 420 Males, 595 Females and 205 Tank Tenders, which were supply tanks.

The Mark IV was used successfully at the Messines Ridge in June 1917 where they outpaced the infantry on dry ground, but in the Third Ypres of July and August they found the swampy ground difficult and were of little use. About 460 Mark IV tanks were used during the Battle of Cambrai in November 1917.

The first tank-to-tank battle was between Mk IV tanks and German A7V
A7V
The A7V was a tank introduced by Germany in 1918, near the end of World War I. One hundred vehicles were ordered during the spring of 1918, but only 21 were delivered. It was nicknamed "The Moving Fortress" by the British because of the shape of the hull...

s in the Second Battle of Villers-Bretonneux
Second Battle of Villers-Bretonneux
The Second Battle of Villers-Bretonneux came during the period of the battle of Lys, 24–27 April 1918, but was launched against the British lines in front of Amiens.The Germans developed a small number of tanks, and used them in this offensive...

 in April 1918.

Mark V series

The Mark V was first intended to be a completely new design of tank, of which a wooden mock-up had been finished. However, when the new engine and transmission originally desired for the Mark IV became available in December 1917, the first more advanced Mark V design was abandoned for fear of disrupting the production run. The designation "Mark V" was switched to an improved version of the Mark IV, equipped with the new systems. The original design of the Mark IV was to be a large improvement on the Mark III but had been scaled back to be a mild improvement due to technical delays. The Mark V thus turned out very similar to the original design of the Mark IV - i.e. a greatly modified Mark III.

The Mark V had more power (150 bhp) from a new Ricardo
Harry Ricardo
Sir Harry Ricardo was one of the foremost engine designers and researchers in the early years of the development of the internal combustion engine....

 engine. Use of Wilson's epicyclic steering gear meant that only a single driver was needed. On the roof towards the back of the tank behind the engine was a second raised cabin for a machine-gunner and the tank commander. The machine guns now fired through ball mounts rather than loopholes, giving better protection and a wider field of fire.

Four hundred were built, 200 each of Males and Females. Several were converted to Hermaphrodites by swapping sponsons to give a single 6-pounder gun for each. These are also sometimes known as "Mark V Composite".

The Mark V was a late participant in the First World War. It was first used in the Battle of Hamel
Battle of Hamel
The Battle of Hamel was a successful attack launched by the Australian Corps of the Australian Imperial Force and several American units against German positions in and around the town of Hamel in northern France during World War I....

 on 4 July 1918 when 60 tanks contributed to a successful assault by Australian units on the German lines. A number saw service in the Allied intervention in the Russian Civil War
Allied Intervention in the Russian Civil War
The Allied intervention was a multi-national military expedition launched in 1918 during World War I which continued into the Russian Civil War. Its operations included forces from 14 nations and were conducted over a vast territory...

 on the White Russian side. They participated in the British North Russia Campaign
North Russia Campaign
The North Russia Intervention, also known as the Northern Russian Expedition, was part of the Allied Intervention in Russia after the October Revolution. The intervention brought about the involvement of foreign troops in the Russian Civil War on the side of the White movement...

. Some saw service with the Estonian forces after Russian forces had to retreat into Estonia and be disarmed and were used until 1941. Mark Vs were also delivered to the French, Canadian and American armies.

Two Mark V tanks, one male, one female, can be seen in several photographs taken in Berlin in 1945 in front of the Berliner Dom
Berliner Dom
Berlin Cathedral is the colloquial name for the Evangelical Oberpfarr- und Domkirche in Berlin, Germany...

 (Berlin Cathedral). It has been suggested this was a museum piece that had been previously displayed at the Lustgarten
Lustgarten
The Lustgarten is a park on Museum Island in central Berlin, near the site of the former Berliner Stadtschloss of which it was originally a part...

 and it had been used as a static pillbox
Bunker
A military bunker is a hardened shelter, often buried partly or fully underground, designed to protect the inhabitants from falling bombs or other attacks...

 to help bolster the city's defences during Nazi Germany
Nazi Germany
Nazi Germany , also known as the Third Reich , but officially called German Reich from 1933 to 1943 and Greater German Reich from 26 June 1943 onward, is the name commonly used to refer to the state of Germany from 1933 to 1945, when it was a totalitarian dictatorship ruled by...

's final days. However, there is no evidence this was the case and it is not clear what role (if any) it played in the Battle of Berlin
Battle of Berlin
The Battle of Berlin, designated the Berlin Strategic Offensive Operation by the Soviet Union, was the final major offensive of the European Theatre of World War II....

.

Mark V*

In 1917 Sir William Tritton developed the Tadpole Tail, an extension of the tracks to be fitted to the back of a tank to improve trench crossing abilities. This was necessary because the Hindenburg Line
Hindenburg Line
The Hindenburg Line was a vast system of defences in northeastern France during World War I. It was constructed by the Germans during the winter of 1916–17. The line stretched from Lens to beyond Verdun...

 had 3.5 m (3.8 yd) wide trenches to stop the British tanks. When Major Philip Johnson of the Central Tank Corps Workshops heard of this project, he immediately understood that the weight of the heavy girders strengthening the attachment might be put to a better use by creating a larger tank. He cut a Mark IV in half and stretched the hull, lengthening it by six feet. When details had been forgotten, it was for a long time assumed that most Mark V* had been field conversions made by Johnson. It is now known that they were all factory-built. It had a larger "turret" on the roof and doors in the side of the hull. The weight was 33 tons. Of orders for 500 Males and 200 Females, 579 had been built by the Armistice – the order was completed by Metropolitan Carriage in March 1919. The American 301st Heavy Tank Battalion was equipped with 19 Mark V and 21 Mark V* tanks in their first heavy tank action against the Hindenburg Line on 27 September 1918. Of the 21 Mark V* tanks, 9 were hit by artillery rounds (one totally destroyed), 2 hit British mines, 5 had mechanical problems, and 2 ditched in trenches. The battalion, however, did reach its objective.

The extra section was also designed to house a squad of infantry. This was the first ever purpose designed tracked armoured personnel carrier
Armoured personnel carrier
An armoured personnel carrier is an armoured fighting vehicle designed to transport infantry to the battlefield.APCs are usually armed with only a machine gun although variants carry recoilless rifles, anti-tank guided missiles , or mortars...

 (APC), it was also the first APC to be significantly armed, as some earlier conversions of tanks into supply carriers lacked any armament. It could operate as a tank as well as carrying troops, and it was not until the post World War II era Merkava
Merkava
The Merkava is a main battle tank used by the Israel Defense Forces. The tank began development in 1974 and was first introduced in 1978. Four main versions of the tank have been deployed. It was first used extensively in the 1982 Lebanon War...

 that a tank that could also carry troops under protection was produced.

Note: the asterisk (*) in early British tank designations was usually pronounced as "star" when spoken, e.g., Mark Five-star, or Mark Five-star-star, etc.

Mark V**

Because the Mark V* had been lengthened, its original length-width ratio had been spoiled. Lateral forces in a turn now became unacceptably high causing thrown tracks and an enormous turn circle. Therefore Major Wilson redesigned the track in May 1918, with a stronger curve to the lower run reducing ground contact (but increasing ground pressure as a trade-off) and the tracks widened to 26.5 inches. The Mark V engine was bored out to give 225 hp and sited further back in the hull. The cabin for the driver was combined with the commander's cabin; there now was a separate machine gun position in the back. Of a revised order for 700 tanks (150 Females and 550 Males) only 25 were built and only one of those by the end of 1918.

Mark VI

The Mark VI
Mark VI (tank)
The Mark VI was a British heavy tank project from the First World War.After having made plans for the continued development of the Mark I into the Mark IV, the Tank Supply Committee in December 1916 ordered the design of two new types: the Mark V and the Mark VI...

 was one of a pair of related projects to develop the tank initiated in late 1916. The Mark V would be the application of as many advanced features as could be managed on the Mark I hull design and the Mark VI would be a complete break with the Mark I hull. The Mark V would not be built as such, because of the delays with the Mark IV and it would be a different Mark V that was built.
The Mark VI project design had a completely new hull – taller and with rounded track paths. The single main gun was in the front of the hull. It did not progress past the stage of a wooden mock-up; the project was cancelled in December 1917 in order that a tank co-developed with the US (the Mark VIII) could go forward.

Mark VII

Mark Knothe, the Technical Liaison Officer between Stern, Elles and Anley, contributed to the development of the tank, designing a longer Mark I with Williams-Janney hydraulic transmission; one of the Mark IIs used as test vehicles had used a hydraulic transmission. In October 1917 Brown Brothers  in Edinburgh
Edinburgh
Edinburgh is the capital city of Scotland, the second largest city in Scotland, and the eighth most populous in the United Kingdom. The City of Edinburgh Council governs one of Scotland's 32 local government council areas. The council area includes urban Edinburgh and a rural area...

 were granted a contract to develop this line of research further. In July 1918 the prototype was ready. Its drive system was very complex. The 150 hp Ricardo engine drove into Variable Speed Gear Ltd. pumps that in turn powered two hydraulic motors, moving one track each by means of several chains. To ward off the obvious danger of overheating there were many fans, louvres and radiators. Steering was easy and gradual however and the version was taken into production to equip one tank battalion. Three had been built, and only one delivered out of an order for 74 when war ended. It was passed over in favour over the V** which was ordered at the same time. The hull was slightly lengthened in comparison with the Mark V. No Mark VIIs survive.

Mark VIII


When Stern was removed from his post following disagreements with the war office, he was sidelined by appointment to a new department to work on a cooperative design between the Allies – assembly in France, hulls, guns and their ammunition from the UK and other components (principally the engines) from the USA
American involvement in the development of the tank design led to the Mark VIII
Mark VIII (tank)
The Tank Mark VIII or Liberty was an Anglo-American tank design of the First World War. Initially intended to be a collaborative effort to equip France, the UK and the US with a single tank design, it did not come to fruition before the end of the war and only a few were produced.-Early...

, also known as "Liberty" or Anglo-American tank (though initially the French were partially involved).

The engine was compartmentalised from the crew, and the turret structure included forward and rear firing machine guns. Of a planned (shared production) of 1,500 each, 24 were built by the British before they pulled out of the project and 100 completed by the Americans. The 100 were produced between September 1918 and 1920, at the Rock Island Arsenal
Rock Island Arsenal
The Rock Island Arsenal comprises , located on Arsenal Island, originally known as Rock Island, on the Mississippi River between the cities of Davenport, Iowa, and Rock Island, Illinois. It lies within the state of Illinois. The island was originally established as a government site in 1816, with...

, at a cost of $35,000 [£8,750] apiece ($430,000 [£226,000] in 2006). About 40 hulls for the U.S Liberty were produced by the Manchester Tank Syndicate, 11 British Type Mark VIII by the North British Locomotive Co.

They were used and upgraded until the 1930s when given to Canada for training (as opposed to the M1917
Renault FT-17
The Renault FT, frequently referred to in post-WWI literature as the "FT-17" or "FT17" , was a French light tank; it is among the most revolutionary and influential tank designs in history...

s which were sold at scrap value). The tank itself was over 34 feet (10 m) long, and there had been an even longer 44 foot (13 m) version planned but never made (the Mark VIII*). The tank was outdated by the 1930s due to its speed (under 6 mph/10 km/h) and armour (16–6 mm) but it did have one of the longest independent trench crossing capabilities of any armoured fighting vehicle (AFV) ever made. Modern main battle tanks and AFVs rely on bridge laying tanks for crossing large deep trenches.
  • Crew: 12 (later 10)
  • Weight 37 ton
    Long ton
    Long ton is the name for the unit called the "ton" in the avoirdupois or Imperial system of measurements, as used in the United Kingdom and several other Commonwealth countries. It has been mostly replaced by the tonne, and in the United States by the short ton...

    s (37.6 tonnes)
  • Length/Height/Width : 34 ft 2 in by 10 ft 3 in by 12 ft 4 in (10.4 m by 3.1 m by 3.8 m) (Mark VIII* length 44 ft/13.4 m)
  • Engine: Ricardo 330 hp petrol (UK), Liberty V12 300 hp (U.S.).

Mark IX

The Mark IX
Mark IX tank
The Mark IX tank was a British armoured fighting vehicle from the First World War, the world's first specialised Armoured Personnel Carrier .-Development:...

 was a troop carrier
Armoured personnel carrier
An armoured personnel carrier is an armoured fighting vehicle designed to transport infantry to the battlefield.APCs are usually armed with only a machine gun although variants carry recoilless rifles, anti-tank guided missiles , or mortars...

 or infantry supply vehicle—among the first tracked armoured personnel carrier
Armoured personnel carrier
An armoured personnel carrier is an armoured fighting vehicle designed to transport infantry to the battlefield.APCs are usually armed with only a machine gun although variants carry recoilless rifles, anti-tank guided missiles , or mortars...

 not counting experiments with the lengthened Mk V's. 34 were built out of an order for 200.

Mark X

Paper only project to improve the Mark V, originally known as Mark V***. This was basically a contingency plan in case the Mark VIII project would fail (if so a production of 2000 was foreseen for 1919), trying to produce a tank with as many parts of the Mark V as possible but with improved manoeuvrability and crew comfort.

Combat history

The first tanks were added, as a "Heavy Branch", to the Machine Gun Corps
Machine Gun Corps
The Machine Gun Corps was a corps of the British Army, formed in October 1915 in response to the need for more effective use of machine guns on the Western Front in World War I. The Heavy Branch of the MGC was the first to use tanks in combat, and the branch was subsequently turned into the Tank...

 until a separate Tank Corps
Royal Tank Regiment
The Royal Tank Regiment is an armoured regiment of the British Army. It was formerly known as the Tank Corps and the Royal Tank Corps. It is part of the Royal Armoured Corps and is made up of two operational regiments, the 1st Royal Tank Regiment and the 2nd Royal Tank Regiment...

 was formed on 28 July 1917 by Royal Warrant
Royal Warrant
Royal warrants of appointment have been issued for centuries to those who supply goods or services to a royal court or certain royal personages. The warrant enables the supplier to advertise the fact that they supply to the royal family, so lending prestige to the supplier...

. A small number of Mark I tanks took part in the battle of the Somme during the Battle of Flers-Courcelette
Battle of Flers-Courcelette
The Battle of Flers-Courcelette, was a battle within the Franco-British Somme Offensive which took place in the summer and autumn of 1916. Launched on the 15th of September 1916 the battle went on for one week. Flers-Courcelette began with the overall objective of cutting a hole in the German...

 in September 1916. They were used to cut through barbed wire to clear the way for infantry, and were even driven through houses to destroy machine gunner's emplacements. Although many broke down or became stuck, almost a third that attacked made it across no mans land, and their effect on the enemy was noted, leading to a request by the British C-in-C Douglas Haig
Douglas Haig
Douglas Haig, 1st Earl Haig was a British soldier and senior commander during World War I.Douglas Haig may also refer to:* Club Atlético Douglas Haig, a football club from Argentina* Douglas Haig , American actor...

 for a thousand more. This came as a bit of a surprise: William Tritton had already started the development of a heavier tank: the Flying Elephant
Flying Elephant
The Flying Elephant was a proposed super-heavy tank, planned but never built by the British during World War I.-Development:After the last order for an additional fifty Mark I vehicles in April 1916, it was not certain that any more tanks were to be produced. Everything would depend on the success...

. Unfortunately for the Allies, it also gave the Germans time to develop a specifically designed anti-tank weapon for the infantry, an armour-piercing 7.92 mm K bullet
K bullet
Also: Patrone SmK 8x57mm ISThe K bullet is a 8x57mm IS armor-piercing bullet which has a tool steel core and which was designed to be fired from a standard Mauser rifle. It was used by the German infantry against the first British tanks in World War I...

.

During the Battle of Amiens in August 1918, several hundred Mark V tanks with the new Whippet
Whippet Mk A
The Medium Mark A Whippet was a British tank of World War I. It was intended to complement the slower British heavy tanks by using its relative mobility and speed in exploiting any break in the enemy lines. Possibly the most successful British tank of World War I, the Whippet was responsible for...

 tanks penetrated the German lines in a foretaste of modern armoured warfare.

Mark V tanks, acquired by the Red Army in the course of the Russian Civil War
Russian Civil War
The Russian Civil War was a multi-party war that occurred within the former Russian Empire after the Russian provisional government collapsed to the Soviets, under the domination of the Bolshevik party. Soviet forces first assumed power in Petrograd The Russian Civil War (1917–1923) was a...

, were used in 1921 during the Red Army invasion of Georgia
Red Army invasion of Georgia
The Red Army invasion of Georgia also known as the Soviet–Georgian War or the Soviet invasion of Georgia was a military campaign by the Soviet Russian Red Army against the Democratic Republic of Georgia aimed at overthrowing the Social-Democratic government and installing the Bolshevik regime...

 and contributed to the Soviet victory in the battle for Tbilisi.

In 1945, at least two Mk V tank leftovers were used by German garrison in defense of Berlin. It's unknown whom the tanks were captured from. Both tanks were destroyed in the subsequent battle in Berlin.

A few tanks were present at the Second Battle of Gaza
Second Battle of Gaza
The Second Battle of Gaza, fought in southern Palestine during the First World War, was another attempt mounted by British Empire forces to break Ottoman defences along the Gaza-Beersheba line...

 in Palestine in 1917.

Little Willie

Little Willie
Little Willie
Little Willie was a prototype in the development of the British Mark I tank. Constructed in the summer of 1915 through a close cooperation of the military and industry of the United Kingdom, it was the first completed tank prototype in history...

survives at the Bovington Tank Museum
Bovington Tank Museum
The Tank Museum is a collection of armoured fighting vehicles in the United Kingdom that traces the history of the tank. With almost 300 vehicles on exhibition from 26 countries it is the second-largest collection of tanks and armoured fighting vehicles in the world.The Musée des Blindés in France...

; it was saved from being scrapped in 1940—many other prototypes were melted down during the Invasion Scare
British anti-invasion preparations of World War II
British anti-invasion preparations of the Second World War entailed a large-scale division of military and civilian mobilisation in response to the threat of invasion by German armed forces in 1940 and 1941. The British army needed to recover from the defeat of the British Expeditionary Force in...

—on the pretext it was helping to defend Bovington base against possible German attacks.

Mark I

A single male survives. This is the only surviving Mark I and the world's oldest surviving combat tank. It is part of the collection at the Bovington Tank Museum. It is painted to represent Number 705, C19, Clan Leslie although its identity and wartime history are unknown. There are indications it may have served as a driver-training tank and it has been suggested it is Number 702, which would make it the second Mark I built. Between 1919 and 1970, it was sited in the grounds of Hatfield House
Hatfield House
Hatfield House is a country house set in a large park, the Great Park, on the eastern side of the town of Hatfield, Hertfordshire, England. The present Jacobean house was built in 1611 by Robert Cecil, First Earl of Salisbury and Chief Minister to King James I and has been the home of the Cecil...

 to commemorate the fact this was a testing site for tanks during their earliest development.

Mark II

There is a single surviving Mark II Female, F53: The Flying Scotsman, at the Bovington Tank Museum. This tank still has battle damage sustained at the Battle of Arras
Battle of Arras (1917)
The Battle of Arras was a British offensive during the First World War. From 9 April to 16 May 1917, British, Canadian, New Zealand, Newfoundland, and Australian troops attacked German trenches near the French city of Arras on the Western Front....

 in April 1917.

Mark IV

Seven Mark IV's survive.
  • A Mark IV Female, F4: Flirt II, which fought at the Battle of Cambrai, is at the Museum of Lincolnshire Life
    Museum of Lincolnshire Life
    The Museum of Lincolnshire Life is a museum in Lincoln, Lincolnshire, in the UK. The museum collection is a varied social history that reflects and celebrates the culture of Lincolnshire and its people from 1750 to the present day...

    , Lincoln, England. A local company, William Foster & Co.
    William Foster & Co.
    William Foster & Co Ltd was an agricultural machinery company based in Lincoln, Lincolnshire, England and usually just called "Fosters of Lincoln." The company can be traced back to 1846, when William Foster purchased a flour mill in Lincoln. William Foster then proceeded to start small scale...

    , manufactured the first tanks.
  • A Mark IV Female is preserved at Ashford
    Ashford, Kent
    Ashford is a town in the borough of Ashford in Kent, England. In 2005 it was voted the fourth best place to live in the United Kingdom. It lies on the Great Stour river, the M20 motorway, and the South Eastern Main Line and High Speed 1 railways. Its agricultural market is one of the most...

     in Kent
    Kent
    Kent is a county in southeast England, and is one of the home counties. It borders East Sussex, Surrey and Greater London and has a defined boundary with Essex in the middle of the Thames Estuary. The ceremonial county boundaries of Kent include the shire county of Kent and the unitary borough of...

    . This is one of many that were presented for display to towns and cities in Britain after the war; most were scrapped in the 1920s and 1930s.
  • The Royal Museum of the Army in Brussels
    Brussels
    Brussels , officially the Brussels Region or Brussels-Capital Region , is the capital of Belgium and the de facto capital of the European Union...

     has a Male Mark IV tank, the Lodestar III, still in original colours.
  • A Mark IV Female,Grit, is displayed in the ANZAC hall at the Australian War Memorial
    Australian War Memorial
    The Australian War Memorial is Australia's national memorial to the members of all its armed forces and supporting organisations who have died or participated in the wars of the Commonwealth of Australia...

    .
  • In 1999, a Mark IV Female, D51: Deborah, was excavated at the village of Flesquières
    Flesquières
    Flesquières is a commune in the Nord department in northern France.-Heraldry:-References:*...

     in France. It had been knocked out by shell-fire at the Battle of Cambrai (1917) and subsequently buried when used to fill a crater. Work is underway on its restoration.
  • A Mark IV Male, Excellent, is displayed at Bovington. After World War I, this tank was presented by the army to HMS Excellent, a Royal Navy shore establishment where some tank crewmen were trained. During World War II, it was made operational again for service with the Home Guard when German invasion threatened in 1940. It is still maintained in working order.
  • Mark IV Female Liberty: displayed at United States Army Ordnance Museum
    United States Army Ordnance Museum
    The U.S. Army Ordnance Museum is a museum that is in the process of being re-located to Fort Lee, in Fort Lee, Virginia. Its previous building—at Aberdeen Proving Ground in Aberdeen, Maryland—was closed in September 2010, although many outdoor exhibits are still accessible to the...

    , Aberdeen, Maryland
    Aberdeen, Maryland
    As of the census of 2000, there were 13,842 people, 5,475 households, and 3,712 families residing in the city. The population density was 2,166.2 people per square mile . There were 5,894 housing units at an average density of 922.4 per square mile...

    . Originally named Britannia, Renamed Liberty, the tank joined the Ordnance Museum collection in 1919. After decades of exposure to the elements, it is in poor condition, but about to undergo restoration.

Mark V

Eleven Mark V's survive. The majority are in Russia or Ukraine and are survivors of the tanks sent there to aid the White forces during the Russian Civil War
Russian Civil War
The Russian Civil War was a multi-party war that occurred within the former Russian Empire after the Russian provisional government collapsed to the Soviets, under the domination of the Bolshevik party. Soviet forces first assumed power in Petrograd The Russian Civil War (1917–1923) was a...

.
  • The Bovington Tank Museum displays a Mark V Male, Number 9199, one of two British World War I tanks still in working order. It was in action at the Battle of Amiens where its commander – Lt. HA Whittenbury – was awarded the Military Cross
    Military Cross
    The Military Cross is the third-level military decoration awarded to officers and other ranks of the British Armed Forces; and formerly also to officers of other Commonwealth countries....

    .
  • A Mark V** Female: Ol'Faithfull, is also preserved at Bovington.
  • A heavily restored
    Ship of Theseus
    The Ship of Theseus, also known as Theseus' paradox, or various variants, notably grandfather's axe and Trigger's Broom is a paradox that raises the question of whether an object which has had all its component parts replaced remains fundamentally the same object.The paradox is most notably...

     Mark V Male, Devil, survives at the London Imperial War Museum
    Imperial War Museum
    Imperial War Museum is a British national museum organisation with branches at five locations in England, three of which are in London. The museum was founded during the First World War in 1917 and intended as a record of the war effort and sacrifice of Britain and her Empire...

    .
  • A Mark V* Male, Number 9591, has since 2010 been part of the collection of the National Armor and Cavalry Museum, Fort Benning, Georgia. Issued to Company A, US 301st Heavy Tank Battalion and knocked out by a single artillery round on September 27, 1918 during the attack against the Hindenburg Line, it was repaired and sent back to the United States. It represents the only surviving exemplar of the Mark V*.
  • A Mark V is at the Kubinka Tank Museum
    Kubinka Tank Museum
    The Kubinka Tank Museum is a large museum of armoured fighting vehicles in Kubinka, just outside Moscow. It has many famous tanks from World War I, World War II and the Cold War. The museum also houses many unique vehicles, such as the Panzer VIII Maus, Troyanov super-heavy tank and a Karl-Gerät...

    , Russia.
  • A Mark V serves as memorial in Arkhangelsk
    Arkhangelsk
    Arkhangelsk , formerly known as Archangel in English, is a city and the administrative center of Arkhangelsk Oblast, Russia. It lies on both banks of the Northern Dvina River near its exit into the White Sea in the north of European Russia. The city spreads for over along the banks of the river...

    . This was originally used by British forces during the Allied Intervention in the Russian Civil War
    Allied Intervention in the Russian Civil War
    The Allied intervention was a multi-national military expedition launched in 1918 during World War I which continued into the Russian Civil War. Its operations included forces from 14 nations and were conducted over a vast territory...

    .
  • Two preserved Mark Vs, a Male and a Female, form part of an outdoor memorial at Luhansk
    Luhansk
    Luhansk also known as Lugansk is a city in southeastern Ukraine. It is the administrative center of the Luhansk Oblast . The city itself is also designated as its own separate municipality within the oblast...

     in Ukraine
    Ukraine
    Ukraine is a country in Eastern Europe. It has an area of 603,628 km², making it the second largest contiguous country on the European continent, after Russia...

    ; two more are in storage.
  • A Mark V Female is at the Kharkiv
    Kharkiv
    Kharkiv or Kharkov is the second-largest city in Ukraine.The city was founded in 1654 and was a major centre of Ukrainian culture in the Russian Empire. Kharkiv became the first city in Ukraine where the Ukrainian Soviet Socialist Republic was proclaimed in December 1917 and Soviet government was...

     Historical Museum, Ukraine.

Mark VIII/Liberty

  • A Mark VIII Liberty tank originally at the Aberdeen Proving Ground
    Aberdeen Proving Ground
    Aberdeen Proving Ground is a United States Army facility located near Aberdeen, Maryland, . Part of the facility is a census-designated place , which had a population of 3,116 at the 2000 census.- History :...

    , Maryland, has in 2010 been transferred to the National Armor and Cavalry Museum at Fort Benning, GA. The vehicle was originally assigned to the American 67th Infantry Regiment (Heavy Tanks) at Fort Benning, GA.
  • A modified Liberty tank is preserved at Fort Meade
    Fort George G. Meade
    Fort George G. Meade is a United States Army installation that includes the Defense Information School, the United States Army Field Band, and the headquarters of United States Cyber Command, the National Security Agency, and the Defense Courier Service...

    , Maryland. The tank displayed in the post museum was made in 1920 at Rock Island Arsenal
    Rock Island Arsenal
    The Rock Island Arsenal comprises , located on Arsenal Island, originally known as Rock Island, on the Mississippi River between the cities of Davenport, Iowa, and Rock Island, Illinois. It lies within the state of Illinois. The island was originally established as a government site in 1816, with...

    , Illinois. It was assigned to the 301st Tank Battalion (Heavy), later redesignated the 17th Tank Battalion (Heavy). Throughout most of 1921–1922, Major Dwight D. Eisenhower
    Dwight D. Eisenhower
    Dwight David "Ike" Eisenhower was the 34th President of the United States, from 1953 until 1961. He was a five-star general in the United States Army...

    commanded this unit
  • A British Mark VIII is at Bovington.

External links

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