Germany's Maus heavy tank
Design
On June 8, 1942, Dr. Ferdinand Porsche was asked, by Hitler, to work on a new heavy tank design.4,5 It was to carry a 128 mm or 150 mm gun in the turret with a 75 mm coaxial gun. Porsche was the head of the German Tank Commission and advocated superheavy tanks. The tank was first referred to as the Mammut (Mammoth) and given project Porsche Type 205.5 Since the request was made verbally it never received a V.K. number.5
Alkett began assembly of the tank on August 1, 1943. Krupp supplied the hull in the middle of September 1943. The name was changed to Maus and was first run at Alkett on December 23, 1943. The tank was then sent to Böblingen (near Stuttgart) on January 10, 1944, for extensive tests. There were some problems with the suspension but the trials went rather successfully.
Hitler then ordered that the tank had to be completed by June 1944. On June 9, 1944, the turret was fitted to the tank. At the beginning of October the Maus was then sent to the proving grounds at Kummersdorf. A 2nd prototype was sent to Kummersdorf before trials were completed. This one had a different engine and considerable trouble. There were approximately 9 prototypes in various phases of completion when the war ended.
Electrical equipment came from Siemens-Schuckert and the engine was from Daimler-Benz. Tracks were supplied by Altmärkische Kettenfabrik. Armor came from Krupp, and the assembly was done by Alkett.
The Maus would have needed special rail cars designed for it's transport. Although it couldn't cross any bridges it would have been made to submerge for river crossings.
The ammunition for the 150 mm gun weighed 70 kg/ 154 lb and had to be carried in a trailer.4
The chassis was filled with the engine except for a compartment in the front for the driver and co-driver. Fuel was located in front of the superstructure. The ammunition was carried in the middle on the left, and on the right was an auxiliary engine with additional ammunition. The electric drive motors were at the rear with the engine located in the front part of the hull.
The turret alone weighed 50 tons. It was made from a cast front, with rolled armor on the sides and rear. A grenade projector was to be installed in the roof. The turret was electric powered and was to make a full rotation in 16 seconds.
The 8 hp auxiliary engine provided starting power, maintained the high pressure in the fighting compartment, and charged the batteries.
Fording
Air supply was provided to the crew and the engine by a chimney.5 It allowed for the Maus to ford rivers 24' deep.5 A second Maus was to provide electrical power to a fording Maus.5 Then once the first Maus reached the other side it would do the same for the second Maus.5
Prototype
On January 4, 1943, a scale model was shown to Hitler.5
Production
Plans for production was to be initially five per month and this was raised to ten per month.5
- Maus: 2 prototypes2
- Manufacturer: Alkett2
Variants
Usage
Both prototypes are reported to have been blown up at Kummersdorf before the Russians overran the facility. However, one actually ended up in a Museum in Moscow.
Specifications
| Maus | |
|---|---|
| Crew | 51,2, 63,4,5 |
| Radio | FuG52 |
| Physical Characteristics | |
| Weight | 180-188 tons3, 188 tons1,2,4 191,000 kg1 |
| Length w/gun | 29' 8"5, 33' 1"4 33' 1.2"1 10.08 m4, 10.09 m1,2 |
| Length w/o gun | 29' 7"4 9.03 m4 |
| Height | 12'1,4,5 3.66 m1,2,4 |
| Width | 12'4, 12' 0.5"1, 12' 1"5 |
| Ground clearance | 54 cm |
| Ground contact length | 5.88 m |
| Ground pressure | 20.6 psi 1.45 kg/cm2 |
| Turret ring diameter | 6' 1" 3 m |
| Armament | |
| Main | 128 mm1 128 mm KwK44 L/552 15 cm KwK 44 L/384,5 150 mm3 |
| OR | 12.8 cm K5 |
| Secondary - coaxial | 75 mm1,3 75 mm KwK44 L/36.52,4,5 |
| MG | 7.92 mm MG1 7.92 mm MG342 1: MG5 2: MG3 |
| MG - antiaircraft | 7.92 mm MG344 |
| MG - coaxial | 7.92 mm MG344 |
| Side arms | |
| Quantity | |
| Main | 15 cm: 504 128 mm: 68, 322 |
| Secondary | 2002 |
| MG | 1,0004 |
| Side arms | |
| Armor Thickness (mm) | 50 - 2403 |
| Hull Front, Upper | 2005, 200@55°2, 200@35°4 |
| Hull Front, Lower | 200@35°2, 200@60°4 |
| Hull Sides, Upper | 180+100@0°2, 180@90°4 |
| Hull Sides, Lower | 180@0°2 |
| Hull Rear | 160-165@90°4, 180@38°2 & 180@30°2 |
| Hull Top | 40-80@90°2 |
| Hull Bottom | 40-100@90°2 |
| Turret Front | 2405, 240 round2,4 Mantlet: 240 Soukopfblende2 |
| Turret Sides | 200@30°2, 200@60°4 |
| Turret Rear | 200@7°2, 200@60°4 |
| Turret Top | 40@90°2, 60@0°4 |
| Engine (Make / Model) | Daimler-Benz5 Daimler-Benz MB 5091,4 Daimler-Benz MB5174 MB5092 or MB5172 |
| Cylinders | MB509, MB517: V-124 |
| Net HP | 1,2003,4,5 MB509: 1,0802 |
| Transmission | 2 forward, 2 reverse.2 |
| Fuel type | Early: Gasoline5 Late: Diesel5 MB509: Gasoline4 MB517: Diesel2 |
| Octane | |
| Capacity | 1,056 gallons4 4,800 liters4 |
| Performance | |
| Traverse | 360°, electric |
| Speed - Road | 12 mph5, 12.4 mph1, 12.5 mph3,4 20 kph1,2,4 |
| Speed - Cross Country | 7 mph4 11 kph4 |
| Range - Road | 115.5 miles1, 118 miles5, 119 miles4 186 km1,2, 190 km4 Cross country: 60 miles4, 97 km4 |
| Turning Radius | |
| Elevation Limits | -7° to +23° |
| Fording depth | 24'5 |
| Trench crossing | 13' 9" |
| Vertical Obstacle | 2' 2" |
| Suspension (Type) | Sprung on coil springs5 |
| Wheels each side | 245 |
| Return rollers each side | |
| Track length | |
| Tires | |
| Track width | 1.1 m |
| Track centers/tread | 2.33 m |
Sources:
- The Encyclopedia of Tanks and Armored Fighting Vehicles - The Comprehensive Guide to Over 900 Armored Fighting Vehicles From 1915 to the Present Day, General Editor: Christopher F. Foss, 2002
- Encyclopedia of German Tanks of World War Two, Peter Chamberlain and Hilary Doyle, 1999
- Tanks of the World, 1915-1945, Peter Chamberlain, Chris Ellis, 1972
- German Tanks of World War II, Dr. S. Hart & Dr. R. Hart, 1998
- German Tanks and Armoured Vehicles 1914 - 1945, B. T. White, 1966
