.: Simon Godfree's Dragon Panzer VIII Maus Tank

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Panzer VIII Maus

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Panzerkampfwagen VIII Maus
The Maus prototype at the Kubinka Tank Museum, Russia (2009)
Type Super-heavy tank
Place of origin Nazi Germany
Production history
Produced 1944
Number built 2 (of which 1 incomplete)
Weight 188 tonnes (207 short tons; 185 long tons)
Length 10.2 metres (33 ft 6 in)
Width 3.71 metres (12 ft 2 in)
Height 3.63 metres (11 ft 11 in)
Crew 6

Armour 460 mm (18 in) (in the area of the mantlet)

250 mm (9.8 in) (mantlet)
240 mm (9.4 in) (turret front)[1]
220 mm (8.7 in) (turret side and rear, and hull front)
210 mm (8.3 in) (turret front behind the mantlet)
200 mm (7.9 in) (hull front)[1] 190 mm (7.5 in) (hull side and rear)

128 mm (5 in) KwK 44 gun L/55
(32 rounds)
75 mm (3 in) KwK 44 gun L/36.5
(co-axial) (200 rounds)
7.92 mm MG34 machine gun
Engine MB509 V12 petrol engine, DB 603 derivative (V1)
MB 517 V12 diesel engine (V2)
1080 hp
1200 hp (895 kW)
Power/weight 6.4 hp/t
Ground clearance 500 mm (20 in)
Fuel capacity 2,700 litres (590 imp gal; 710 US gal) (internal fuel tank)
1,500 litres (330 imp gal; 400 US gal) (external fuel tank)
160 km (99 mi) (road)
62 km (39 mi) (off road)
Speed 13 km/h (8.1 mph)

Panzerkampfwagen VIII Maus (Mouse) was a German World War II super-heavy tank completed in late 1944. It is the heaviest fully enclosed armoured fighting vehicle ever built. Only two hulls and one turret were completed before the testing grounds were captured by the advancing Soviet forces. An incomplete tank was captured by British forces.

These two prototypes – one with, one without turret – underwent trials in late 1944. The complete vehicle was 10.2 metres (33 ft 6 in) long, 3.71 metres (12 ft 2 in) wide and 3.63 metres (11.9 ft) tall. Weighing 200 metric tons, the Maus's main armament was a 128 mm KwK 44 L/55 gun (55 calibers long barrel), based on the 12.8 cm Pak 44 anti-tank artillery piece also used in the casemate-type Jagdtiger tank destroyer, with an added coaxial 75 mm gun. The 128 mm gun was powerful enough to destroy all enemy armored fighting vehicles at close or medium ranges, and even some at ranges exceeding 3,500 metres (3,800 yd).[2]

The principal problem in development of the Maus was finding a powerful enough engine for its weight that could be carried in the tank. Though the design called for a maximum speed of 20 kilometres per hour (12 mph), no engine was found that could power the prototype to more than 13 kilometres per hour (8.1 mph) under ideal conditions. The weight also made it impossible to cross most bridges; it was intended to ford or submerge and use a snorkel to cross rivers.


The basic design known as the VK100.01Porsche Type 205[1] was suggested by Ferdinand Porsche to Adolf Hitler in June 1942, who subsequently approved it. The design up to then had been the culmination of work done by Porsche who had won the contract for the heavy tank that March. Work on the design began in earnest; the first prototype, to be ready in 1943 was initially to receive the name Mammut (Mammoth). This was reportedly changed to Mäuschen (Little Mouse) in December 1942 and finally to Maus (Mouse) in February 1943, which became the most common name for this tank. Its ordnance inventory designation was SdKfz 205.

The Maus was designed from the start to use the "electric transmission" design which Ferdinand Porsche had used in his unsuccessful attempt to win the production contract for the Tiger. The initial powerplant was the Daimler-Benz MB 509 gasoline engine, an adaptation of Germany's largest displacement (at 44.5 litres/2,717 in³) inverted V12 aviation engine, the Daimler-Benz DB 603, and later changed to a diesel. It drove a massive electrical generator, and together they occupied the entire central two-thirds of the Maus' hull, cutting off the forward driver's compartment in the hull from direct access to the turret from within the tank. Each 1.1 metre-wide track, which used the same basic "contact shoe" and "connector link" design format as the Henschel-built King Tiger had used, had its own electric motor mounted in the rear of the hull; the tracks had no direct mechanical connection to the internal combustion engine that powered the Maus. Each set of tracks had a suspension design containing a total of 24 road wheels each per side, in six bogie sets, staggered to be spread over the wide 1100mm width of the track shoes and links.

Due to the return "run" of the uniquely wide tracks used (1100 mm each) being completely enclosed within the fixed outer side armor panels that defined its overall hull width, with the inner vertical lengthwise walls of the hull used to mount the suspension components, a narrow lengthwise "tub" remained between the hull's inner armored walls, under and to the rear of the turret to house the engine and generator of the tank's powertrain.[3]

The amount of armour was substantial, the hull front was 220 millimetres (8.7 in). The sides and rear of the hull were up to 190 millimetres (7.5 in). The turret armour was even thicker, the turret front was up to 220 millimetres (8.7 in) and the sides and rear 200 millimetres (7.9 in). The mantlet was 250 millimetres (9.8 in), and combined with the turret armour behind, the protection level at that section was even higher.

The initial plan for the Maus was for the prototype to have been completed by the summer of 1943, with monthly production scheduled to run at ten vehicles per month after delivery of the prototype. The work on the Maus would be divided between Krupp, responsible for the chassis, armament and turret and Alkett, who would be responsible for final assembly.

The Maus tank was originally designed to weigh approximately 100 tons and be armed with a 128 mm main gun and a 75 mm co-axial secondary gun. Additional armament options were studied including various versions of 150 mm and 128 mm guns. Hitler himself in January 1943 insisted that the armament be a 128 mm main gun with a coaxial 75 mm gun. The 128 mm KwK 44 designed for the Maus was later reused under the designation Pak 44 in the casemate-style Jagdtiger tank destroyer.

By May 1943, a wooden mockup of the final Maus configuration was ready and presented to Hitler, who approved it for mass production, ordering a first series of 150. At this point, the estimated weight of the Maus was 188 tons. However, there is a story that concerns the main armament of the Maus being changed by Hitler who said that the 128 mm gun looked like a ´toy gun´ when compared to the tank, causing the 128 mm to be replaced by a 150 mm gun.

In his book Panzer Leader, Heinz Guderian wrote:

On May 1 a wooden model of the "Maus", a tank project of Porsche and Krupp, was shown to Hitler. It was intended to mount a 150 mm gun. The total weight of the tank was supposed to reach 175 tons. It should be considered that after the design changes on Hitler's instructions the tank will weigh 200 tons. The model didn't have a single machine gun for close combat, and for this reason I had to reject it. It had the same design flaw that made the Elefant unsuitable for close combat. In the end, the tank will inevitably have to wage a close combat since it operates in cooperation with the infantry. An intense debate started, and except for me, all of the present found the "Maus" magnificent. It was promising to be exactly that, a "giant".[4]

Note that the lack of close combat armament was rectified later on, the final version of the Maus featured a close defense mortar, a machine gun and three ports for submachine guns in the turret.

The go-ahead for the production was given at a Führer conference held on 3rd January, 1943. Things progressed quickly, a wooden 1:1 scale mockup was presented on 14th of May, 1943. It was decided that 120 Pz.Kpfw Maus should be produced at a rate of 10 every month, a figure later reduced to 5. Mass production started in early July,1943. A bombing raid that took place in early august 1943 was successful in killing off the production program by destroying vital machine-tools. Repeated attempts were made to reinstate the production, ultimately to no avail. Production ceased after 2 vehicles were completed (the first did not receive its turret) and 6 or 7 Wanne with their turrets and another 8 Wanne that were ready to be welded.

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