The first tanks were also not capable of performing on a real battlefield even when they were working -- the tanks deployed in 1916 could only cross trenches or craters of less than two meters span, and only the French tank designed by Renault could climb a forty-five degree slope. The artillery in use at the time made craters too large and too deep for a tank to cross or climb out of.
Engine power was the primary limitation; World War I tanks weighed around thirty tons, and the most powerful engine in use was about one hundred horsepower. (Compare that power-to-weight ratio of 3.3 hp/ton to the German Mark III of the 1930s, which weighed 25 tons and had a 300-hp engine -- 12 hp/ton. By the end of the 20th century, power-to-weight ratios exceeded 20 hp/ton.) No World War I tank could travel faster than walking pace over good ground. At that speed, an object the size of a one-car garage could be destroyed by mortar fire.
Many feel that because the British Commander Field Marshal Douglas Haig was himself a horse cavalryman, his command failed to appreciate the value of tanks. In fact, horse cavalry doctrine in World War I was to "follow up a breakthrough with harassing attacks in the rear", but there were no breakthroughs on the Western Front until the tanks came along.
The first successful use of tanks came in the Battle of Cambrai in 1917. British General J.F.C. Fuller, chief of staff of the Tank Corps, planned the battle. The tanks made an unprecedented breakthrough, but the British were so surprised they failed to exploit the opportunity. Ironically, it was the soon-to-be-supplanted horse cavalry that had been assigned the task of following up the motorized tank attack.
The first tank-versus-tank battles took place 24 April 1918. It was an unexpected meeting engagement between three German A7Vs and three British Mk.IVs.
Later, Fuller's Plan 1919[?] for an offensive was the inspiration for German blitzkrieg tactics in World War II. The plan itself was never used because the blockade[?] of Germany brought an end to the war. As a military planner and later journalist, Fuller continued to develop his doctrine of using tanks supported by infantry to break through enemy lines to attack communications in the rear.
(more on WWI usage)
Country | Year | Built | Type | Armament [ammo load] | Front Armour | Side Armour | Roof Armour | Speed (kmph) | Crew | Weight | Engine | Range |
UK | 1916 | 75 | Mark I male | 2x 57mm/L40 [324] + 3 MGs [6272] | 12 mm | 10 mm | 6 mm | 4.5 | 8 | 28.4 t | 105 hp | 37 km |
UK | 75 | Mark I female | 5 MGs [30080] | 27.4 t | ||||||||
UK | 1917 | 25 | Mark II male | 2x 57mm/L40 + 3 MGs | 12 mm | 10 mm | 6 mm | 8 | 45 km | |||
UK | 1917 | 25 | Mark II female | 5 MGs | 12 mm | 10 mm | 6 mm | 8 | ||||
UK | 1917 | 25 | Mark III male | 2x 57mm/L40 + 3 MGs | 12 mm | 8 | ||||||
UK | 1917 | 25 | Mark III female | 5 MGs | 12 mm | 8 | ||||||
UK | 1917 | 420 | Mark IV male | 2x 57mm/L23 [332] + 4 MGs [6272] | 16 mm | 12 mm | 8 mm | 5.6 | 8 | 28.5 t | 125 hp | 56 km |
UK | 1917 | 595 | Mark IV female | 5..6 MGs [10000] | 27 t | |||||||
UK | 1917 | 200 | Mark V male | 2x 57mm/L23 [207] + 4 MGs [5800] | 14 mm | 14 mm | 8 mm | 7.5 | 8 | 29.5 t | 150 hp | 72 km |
UK | 1917 | 200 | Mark V female | 6 MGs [14100] | 28.5 t | |||||||
UK | 1918 | 200 | Mark V* male | 4x 57mm/L23 [221] + 4 MGs [8400] | 12 mm | 6 mm | 4 | +24 | 33 t | 63 km | ||
UK | 1918 | 432 | Mark V* female | 8 MGs [16800] | 4 | +24 | 32 t | |||||
UK | 1917 | 200 | Mark A "Whippet" | 4 MGs [5400] | 14 mm | 14 mm | 5 mm | 13 | 3 | 14 t | 2x 45 hp | 64 km |
France | 1916 | 400 | Schneider C.A.1 | 75mm/L13 [94..96] + 2 MGs [4000] | 11,5 mm | 11,5 mm | 5,5 mm | 6 | 6 | 13.5 t | 60 hp | 48 km |
France | 1917 | Schneider C.A.1 | 75mm/L13 [94..96] + 2 MGs [4000] | 24 mm | 17 mm | 5,5 mm | 6 | 14.6 t | 75 km | |||
France | 1916 | 165 | St. Chamond M16 | 75mm/? [106..108] + 4 MGs [7488] | 11,5 mm | 8,5 mm | 5,5 mm | 8.5 | 9 | 22 t | 90 hp | 60 km |
France | 1917 | 235 | St. Chamond M17 | 75mm/L36 [106..108] + 4 MGs [7488] | 11,5 mm | 17 mm | 24 t | |||||
France | 1917 | 3177 | Renault FT mitrail. | 1 MG [4800] | 16 mm | 8 mm | 6 mm | 8 | 2 | 6.5 t | 35 hp | 35 km |
France | 1918 | Renault FT canon | 37mm/L20 [240] | 6.7 t | ||||||||
Germany | 1917 | 20 | A7V | 57mm/L26 [180]+ 6 MGs [10000 .. 15000] | 30 mm | 20 mm | 15 mm | 12 | 18 | 32 t | 2x 100 hp | 35 km |
(between the wars: mention Charles de Gaulle,s, Basil Liddell Hart's and Heinz Guderian's advocacy of mechanized warfare) Use of tanks during the spanish Civial War
During World War II, the tank reached new heights of capability and sophistication. The German tanks, though technologically inferior to many of their opponents' tanks in the areas of armor and weaponry, were used most skilfully to achieve surprising strategic victories early in the war. The German doctrine stressed the use of combined-arms involving infantry and air support, and the tactic of the Blitzkrieg (lightning warfare). Furthermore, the Germans were quick to supply their tanks with radios, which provided unmatched command/control.
(use of Pz I and Pz II training tanks due to lack of combat tanks)
The largest tank ever built was the Maus, designed in 1942 by Ferdinand Porsche under direct order from Adolf Hitler. Weighing 188 tons, the Maus was armed with a 128mm cannon and a coaxial 75mm gun, and covered with 180-240mm of armour. Only two prototypes were built, and both were lost while still undergoing testing. One of the Maus prototypes currently resides in the Museum of Armoured Forces in Kubinka[?] Russia.
Tanks were adapted to various uses during WWII including mine-sweeping tanks, and flame-thrower tanks.
(What's the true story behind the Maus in the museum? There are conflicting stories. In one version, both were scuttled at the factory prior to Soviet occupation, in another, one fought briefly before being captured.)
(T-34, tankettes, and other allied tanks of WWII; Patton, Rommel, Guderian, etc)
Since WWII, most of the changes in tank design have been refinements to targeting, ranging, and stabilization equipment, and to communications, and crew comfort. Armour has evolved to keep pace with improvements in weaponry, and guns have gotten bigger, but in most cases have not fundamentally changed.
During the latter half of the 20th century, some tanks were armed with ATGMs (Anti-Tank Guided Missiles) which could be launched through the main gun barrel. In the U.S., the M60A2, M551 Sheridan, and prototype MBT-70, with 152mm barrel/launchers, used the Shillelagh infrared missile. The MBT-70 was cancelled prior to production due to high cost, and superseded by the M1 Abrams, which used a conventional gun. Both the M551 and the M60A2 were widely considered failures; expensive, unreliable, and difficult to maintain. They were replaced by M60A3's (using conventional guns) and M2 Bradleys. ATGMs are currently mounted on lighter AFVs, such as the M901 ITV and the M2/M3 Bradley.
(Russian missile-armed tanks: T-64, T-72, T-80, T-90[?]?)
See also: Tank
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