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Tank, Heavy, TOG 1


Heavy Tank Project (1940)


Land Systems / Battlefield

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Front left side view of the TOG 1 heavy tank

Jump-to: Specifications

Amidst fears of a renewed trench war in France, the British TOG 1 Super Heavy Tank was developed.



Authored By: Staff Writer | Last Edited: 09/25/2018 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site.
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Still fearing that a potential war enveloping Europe would turn into the trench-based slogfests that were World War 1, a group of experienced British Great War engineers and specialists making up the "Special Vehicle Development Committee" met in July of 1939 to draw up plans for a special breed of tank designed for such specific combat. The new tank system would be heavily armed and armored for the role, weighing in at 90 tons and capable of traversing long spaces of trenches.

The design, billed formally as "Tank, Heavy, TOG 1, measured in at over 33 feet long with a 10 foot width and well over 9 feet high. Power was supplied from a single Paxman brand diesel-fueled engine developing 600 horsepower. Its projected speed was approximately 9 miles per hour in ideal conditions - perhaps somewhat optimistic. Suspension was unsprung and the drive was electro-mechanical in nature. Primary armament was a single QF 2-pdr field gun held in a traversing turret along with 4 x 7.7mm general purpose machine guns held in side sponsons. The operating crew consisted of eight personnel to include the driver, the vehicle commander, a dedicated gunner and ammunition loader and four machine gunners. All told, the project was undoubtedly ambitious but its design approach lagged behind the times of contemporary tank designs.

The pilot vehicle was officially constructed throughout 1939 and in 1940 to which it was then presented in October for formal evaluation by authorities. However, it was during this short period that problems soon arose with the drive system, forcing a redesign of the entire unit to operate as a hydraulically-based system. This conversion delayed the TOG 1 project for a substantial time to which the system was once again made ready for testing in May of 1943 - the war now being fully spread throughout Europe and the world. The revised TOG 1 design was now redesignated as the TOG 1A and never proceeded beyond the single prototype. Somewhere down the line, the program was cancelled by authorities and fell to the pages of history for much more important matters erupted for British authorities and improved combat tanks such as the American M4 Sherman (and all its storied variants) had become available in increasingly larger numbers to Allies.

Specifications



Service Year
1940

Origin
United Kingdom national flag graphic
United Kingdom

Crew
8
CREWMEN
Production
1
UNITS


State Factory - UK
National flag of the United Kingdom United Kingdom
(OPERATORS list includes past, present, and future operators when applicable)
Fire Support / Assault / Breaching
Support allied forces through direct / in-direct fire, assault forward positions, and / or breach fortified areas of the battlefield.
Tank-vs-Tank
Engage armored vehicles of similar form and function.


Length
33.1 ft
10.1 m
Width
10.2 ft
3.1 m
Height
9.8 ft
3 m
Weight
176,370 lb
80,000 kg
Tonnage
88.2 tons
HEAVY
(Showcased structural values pertain to the base Tank, Heavy, TOG 1 production variant. Length typically includes main gun in forward position if applicable to the design)
Powerplant: 1 x Paxman diesel TP generator developing 600 horsepower.
Speed
8.7 mph
(14.0 kph)
(Showcased performance specifications pertain to the base Tank, Heavy, TOG 1 production variant. Compare this entry against any other in our database)
1 x QF 2-pdr (40mm) main gun
4 x 7.7mm Vickers machine guns


Supported Types


Graphical image of a tank cannon armament
Graphical image of a tank medium machine gun


(Not all weapon types may be represented in the showcase above)
Not Available.


TOG 1 - Base Series Designation; electro-mechanical drive; appearing in 1940.
TOG 1A - Hydraulic drive installed; appearing in 1943.


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