WoT Blitz. Tank TOG II* Sausage. Heavy tank TOG Combat installation of the Germans tog 2

Official designation: TOG\TOG 2
Alternate designation: "The Old Gang"
Start of design: 1939
Date of construction of the first prototype: 1940
Completion stage: two prototypes built

The long period of absence of heavy tanks in the Royal Tank Corps (RTC), caused by an acute financial crisis, ended only in the late 1930s. The presence of similar vehicles equipped with thick armor and powerful weapons, capable of literally breaking through enemy defenses, was caused by new fears of “trench warfare,” the specter of which had haunted the minds of British staff officers for more than 20 years. Considering these features, it is not difficult to guess what officials from the military department demanded from the designers.

Even before the start of World War 2, it became clear that the multi-turret scheme had lost its former relevance. Tanks like the A1E1 or T-35, with a huge number of barrels, had thin armor, and therefore were completely unsuitable for the role of “infantry”. I didn’t want to spend effort and money on developing fundamentally new machines. From this it was concluded that the RTC absolutely needed an analogue of the ancient Mk.VIII “Liberty”, but performed at a qualitatively new level. A discussion of the requirements for tanks for combat in Europe took place in July 1939. It is quite noteworthy that the discussion included the British Minister of Supply and Sir Albert Stern, who headed the Tank Supply Department during the First World War. Obviously, both honorable gentlemen believed that the Germans would certainly strike at the Maginot Line, the fortifications of which made it possible to withstand a long siege. And here you can’t do without the experience of your senior comrades. The result was quite logical - on September 5, Sir Albert Stern received a proposal to form a committee and work together with tank specialists to develop requirements for a heavy tank. The committee also included Sir W. Tennyson D'Encourt, General Swinton, Mr. Ricardo and Major Walter Wilson. In addition, Stern invited Sir William Triton from Foster to assist in the development new car. All these people in 1914-1918. took a direct part in the design and construction of the famous “diamonds”, the chassis of which was perfectly suited for overcoming field obstacles.

The committee soon requested General base british army give them requirements for a heavy tank, for which an offer was received to visit France and get acquainted with the design of Allied tanks. At the same time, it was intended to find out the opinion of the officers of the headquarters of the British Expeditionary Force. Obviously, the desire of the military did not differ greatly from the committee’s opinion on what a heavy tank should be. As an example, “loomed” french tank B1bis, who had it all necessary qualities, but did not have sufficiently strong weapons. However, the layout of this machine repeated technical solutions later “diamonds”, in which it was once planned to install a gun in the front part of the hull. So it’s not surprising that the tank building orthodoxies decided to combine the old and the new, ahead of their allies.

In October 1939, the committee, which was given the official name “Committee for the Development of a Special Vehicle of the Ministry of Supply,” finally received a full-fledged technical assignment. The design of the tank included an elongated hull and a tracked propulsion unit that completely covered it in height and length. The hull armor was supposed to reliably protect against 37 mm shells anti-tank guns and 105 mm field howitzers at a range of 100 yards (91 meters). The tank's own armament could be roughly divided into two types: a cannon in the front hull was intended to destroy field fortifications, and two 40-mm cannons and two 7.92-mm BESA machine guns in the side sponsons were supposed to be used to “clean up” enemy trenches. The speed was limited to 5 mph (8 km/h), and the range did not exceed 50 miles (82 km). Such low driving performance was a consequence of the concept “ infantry tank” - it was believed that vehicles of this type should not “run away” from the infantry. The tank would be delivered to the front edge of the front by railway.

The military department, apparently wanting to play it safe, issued TTZ to two companies at once - Foster and Harland & Wollf. Working on the first side was the same Committee that used the abbreviation for itself TOG, which meant "The Old Gang"(old gang). The same name was applied to the tank, although the designation TOG 1 (TOG №1). In addition, the terms of reference provided for the installation of a diesel engine.

Thus, the TOG preliminary design, presented in December 1939, was a combination of advanced technical ideas and obvious anachronisms. The “old gang” did not deny itself the pleasure of developing a multi-roller chassis with rigid suspension without elastic elements. This significantly simplified the design and reduced its weight. However, the design weight of the tank was estimated at 50 tons without sponsons, weapons and ammunition, and a powerful diesel engine had not yet appeared. Instead, it was proposed to use a V-shaped 12-cylinder Pacsman-Ricardo diesel engine with a power of 450 hp, which was planned to be boosted to 600 hp. The tank's crew consisted of 8 people: a commander, a driver, a front gun gunner, a loader and four tankmen in sponsons.

Already at this design stage, two miscalculations became immediately obvious. First of all, the weapon scheme clearly did not correspond to reality modern warfare. The side sponsons had to be removed, and a turret with circular rotation was now supposed to be installed on the roof of the hull. The second major problem was the transmission. Considering the mass of the tank, the scheme with a planetary mechanism, initially proposed by W. Wilson, was unacceptable and then the English Electric Company had to be involved in the work, which began developing an electric transmission of the original scheme, which consisted of the following. On the TOG tank, the engine rotated an electric generator, which powered two onboard engines that rotated the tracks. The control wheel was connected to a potentiometer that changed the voltage on the onboard electric motors and the difference in the rotation speed of the tracks led to the vehicle turning.

In its finalized form, the project was accepted for implementation in February 1940, and in October the Foster company completed the assembly of the first prototype. The developers managed to meet 50 “dry” tons, but the hull still retained cutouts for sponsons, and a turret from the Matilda II infantry tank was installed on the roof. All TOG armament consisted of a 75 mm in the front hull plate and a coaxial 40 mm cannon and one 7.92 mm machine gun in the turret. To compensate for the increased load on the ground, it was also necessary to introduce wide track tracks.

Testing of the prototype TOG tank continued long and difficult. The tank arrived for road tests on September 27, and on November 6 it was shown to representatives of the army and the Ministry of Supply (MoF). The weight of the tank with the Matilda II turret and without sponsons was 64,555 kg. During testing, the power plant was constantly plagued by overheating problems, which could not be eliminated. Not surprisingly, the engine and transmission eventually failed. Another problem was the low adaptability of the transmission design for installation on a tank, the operation of which led to deformation of the tracks and guide wheels.

At the same time, in terms of basic driving performance, the TOG was quite satisfactory for the ministry. The main test cycle was completed in June 1941, but the MoF insisted that work on TOG continue. To correct the identified deficiencies, a hydraulic transmission was installed on the prototype, after which the tank received the designation TOG 1A. This option also turned out to be unsuccessful due to the high inertia of the hydraulic pairs, which made control unreliable. Still, tests with hydraulic drive began in May 1943, and a month later the tank was returned to the factory for further modifications. The latest data on TOG 1A dates back to April-May 1944, when the upgraded prototype underwent an additional series of tests. After this, the tank was sent to Chobham, where its traces were lost.

Despite the fact that the positional war on the Western Front long ago ended with the surrender of France and the need for such a tank disappeared by itself, under the influence of Sir W. Churchill and some other officials who were eager to put the new “diamond” into action, work on the TOG continued. Order for a modified prototype TOG 2 (TOG №2) was received on May 6, 1940. To improve technical performance, more radical measures were required, aimed primarily at reducing weight. As a result, the updated model received a chassis of lower height, and the sponsons were left, but the gun in the front hull was still dismantled. Now the main armament, which consisted of a 57-mm gun, was to be placed in a new turret design. The cannons and machine guns in the sponsons were retained, but the sponsons themselves were never installed. However, it was also not possible to get a new tower right away, so they temporarily installed it instead wooden mockup of a simpler form with a dummy gun. The diesel-electric powertrain was retained despite the overheating problems that plagued the TOG 1. The changes were as follows.

The drive engine of the two main generators was a diesel engine, which was mechanically connected to the generators. Generators supplied current to the electric motors on each side. The speed of the vehicle was changed by the fuel pedal of the diesel engine. A manual lever for changing the resistance of the current feeding the electric motor and generator provided additional adjustment of the speed of the machine. By turning the steering wheel connected to a potentiometer, the current resistance in the excitation windings of two generators changed. As a result of turning the steering wheel in one direction or another, the output power electric motor of the opposite side (opposite rotation of the steering wheel) due to an increase in voltage in its windings. Another electric motor, powered by its generator, transmitted power to the drive wheel of the other side, helping to turn. This was one of the ways to independently reverse one of the electric motors and turn the tank on the spot (turn around its axis). To make a turn with a radius equal to the width of the tank, one of the tracks was slowed down using pneumatic brakes.

The prototype of the TOG 2 infantry tank made its first factory runs on March 16, 1941. Further tests did not reveal any special comments, but time was hopelessly lost. The tank had maximum speed 14 km/h and power reserve up to 112 km. Thanks to its chassis, TOG 2 could overcome vertical walls up to 2.1 meters high and ditches up to 6.4 meters wide, which was certainly an impressive result.

Six months later, they decided to make new changes to the design of the tank, and therefore its name changed to TOG 2* The most important modification was the use of torsion bar suspension, which provided better driving performance. In addition to this, a new turret and a 76.2 mm gun were finally installed on the tank. Tests that began in April 1943 confirmed that TOG 2* is the heaviest (more than 81 tons) and most powerful British tank, but the concept according to which it was built is long outdated. Even despite its strong armor, the TOG was inferior in dynamic qualities and armament not only to the German “Tiger”, but even to the weaker Pz.Kpfw.IV with a long-barreled 75-mm cannon. Maneuver warfare was disastrous for such vehicles.

However, in 1942, work began on designing a modification TOG 2R (R– revised, corrected), in which they intended to reduce the length of the chassis by completely eliminating the sponsons, while maintaining the torsion bar suspension, 76.2 mm turret gun and electric turret. Further development heavy infantry tank led to the emergence of the project TOG 3. However, none of them were ever implemented.

Unlike TOG 1A, the fate of TOG 2* turned out to be happier. After the war, the tank was sent to a warehouse, from where it was soon removed, repaired and transferred to the tank museum in Bovington. By the way, the Paxman engine on it remains “native”, although the tank is not running now.

Sources:
P. Chamberlain and K. Alice “British and American tanks Second World War". Moscow. AST\Astrel 2003-04-03
P.Chamberlain and C.Ellis "British and American Tanks of World War Two, The Complete Illustrated History of British, American, and Commonwealth Tanks 1933-1945", 1969
David Fletcher " The Great Tank Scandal - British Armor in the Second World War", Part 1, HMSO 1989

TACTICAL AND TECHNICAL CHARACTERISTICS OF HEAVY INFANTRY TANK

TOG and TOG 2* model 1941

Heavy Tank TOG
1941
Heavy Tank TOG 2*
1943
COMBAT WEIGHT 64555 kg 81284 kg
CREW, people 8 6
DIMENSIONS
Length, mm 10130 ?
Width, mm 3120 2080
Height, mm ? 3050
Ground clearance, mm ? ?
WEAPONS one 75 mm cannon in the hull, two 40 mm cannons in sponsons and two to four 7.92 mm BESA machine guns (as per project) one 76.2 mm OQF 17pdr cannon and one 7.92 mm BESA machine gun
AMMUNITION ?
AIMING DEVICES optical and telescopic sights
RESERVATION body forehead - 62 mm
hull side - 62 mm
hull stern - ?
roof - 25 mm (?)
bottom - 12 mm
turret forehead - 62 mm
turret side - 62 mm
body forehead - 62 mm
hull side - 62 mm
hull stern - ?
roof - 25 mm (?)
bottom - 12 mm
turret forehead - 63 mm
turret side - 40 mm
ENGINE Packsman-Ricardo 12TP, diesel, 12-cylinder, liquid cooled, displacement 3579 cm3, power 600 hp.
TRANSMISSION electric type
CHASSIS ((on one side) 24 road wheels, front guide and rear drive wheels, large metal track
SPEED 6 km/h average technical

12 km/h maximum

6 km/h average technical

14 km/h maximum

HIGHWAY RANGE 80 km 112 km
OBSTACLES TO OVERCOME
Elevation angle, degrees. ?
Wall height, m 2,10
Fording depth, m ?
Ditch width, m 6,40
MEANS OF COMMUNICATION ?

In this article we will talk about probably the most extraordinary tank in game World of Tanks, which is far from the last place in the list of unusual heavy armored vehicles ever created, as well as about its history of creation. Of course it's TOG II*!

The British, like the Soviets, Germans and Americans, were actively involved in the arms race. Based on the experience of the First World War, the designers assumed that the Second World War would be the same positional, with extensive use of trenches and fortifications, which means that tanks capable of overcoming them would be needed.

By 1940, the TOG 1 and TOG 2 tanks were developed - two vehicles created entirely based on outdated views of war. These were heavy tanks designed to break through defenses, trench warfare, overcome rough terrain and enemy trenches, support infantry and deal with enemy defensive structures. And already at the beginning of 1941 a prototype was ready.

Introduced in our game, TOG II* is a 90-ton monster, served by a crew of 6 people. In addition to the vehicle commander, the crew also included a driver, a navigator, a gunner and two loaders.

TOG II was also distinguished from its predecessor by the presence of side protection for the tracks, now open only at the front and rear, which significantly reduced the chances of damage to the tracks. Well, the armament was impressive for its time - a main gun with a caliber of 76.2 mm, using 17-pound QF shells, as well as a BESA anti-personnel coaxial machine gun with a caliber of 7.92 mm.

This tank was simply an elephant even by the standards of heavy armored vehicles of that time. Being 10 meters long and 3 meters wide, this tank was simply huge compared to any other. The turret of the A30 Challenger tank used in this tank was also about 3 meters high, and it was driven by two electric motors. With such a huge hull, the tank had to be provided with decent armor. Hardened steel was used as armor, which increased the efficiency exactly as much as its combat mass. Well, the need for such high level armor arose from an old-fashioned approach to armor - instead of using inclined plates, which increased the chance of ricochet and non-penetration, the hull was completely straight and the designers relied only on strong armor, thereby only aggravating the situation.

The driving force was a diesel-electric 12-cylinder Paxman-Ricardo engine, developing power up to 600 horsepower, transmitting rotation to the drive rollers through an electro-mechanical transmission. Initially, TOG II used an unsprung suspension, but in the TOG II* modification some design aspects were revised and a torsion bar suspension was installed. Despite this, the tank was not capable of speeds exceeding 14 kilometers per hour, and could travel no further than 80 kilometers without refueling.

Testing lasted from 1941 to 1943, when the British Army was already provided with a sufficient number of American-made tanks and no longer needed such heavy tanks. In addition, combat tactics had changed by this time and medium tanks, widely designed by British developers, were needed. American Shermans and their English modifications like the Sherman Firefly showed themselves in this war much better than the bulky monsters of the past.

The only prototype of this tank surviving today is on display at the Bovington Tank Museum.

British heavy tank TOG
After numerous discussions in the British Ministry of Supply after Hitler's attack on Poland (September 1939) regarding a future war using tanks, it was decided to commission William Tritton to develop the latest heavy tank. Tritton had extensive experience creating tanks in the First world war(1916-1918). Later, the General Staff announced its requirements for the new vehicle: a tank with tracks covering the entire hull, to overcome terrain riddled with craters, with armor protecting against 37 mm and 45 mm fire anti-tank guns and 105 mm howitzers at a range of 100 yards. The tank was supposed to be armed with a 40-mm cannon and Beza machine guns with all-round fire. The tank's range should be up to 50 miles and average speed 5 mph. The crew consisted of 8 people. And the tank had to be transported by rail.
By the end of 1939, when the war was already raging in Europe, the preliminary design of the Foster company was ready. But by that time, a lot of difficulties had arisen with spare parts for the engine of the new tank. The new tank was named “TOG” (the old gang). Due to the high weight of the TOG tank, it was proposed to install an electric transmission on it. The first TOG tank appeared in October 1940. The tank turned out to be very heavy - 50 tons of weight and its average speed was 8.5 miles/hour. In appearance, the tank resembled tanks of the First World War.

During the development of the TOG tank, the project was changed and a 2-pound cannon was installed in its turret and a 75-mm howitzer was installed in the front plate of the tank hull. The chassis of the tank had a rigid suspension without shock absorbers and its layout was reminiscent of the suspension that was used on tanks of the First World War.
The first tests showed that the electric suspension would not withstand the load of the tank and the propulsion system overheated and broke. The fact is that on the TOG 1 tank, the diesel engine itself did not rotate the tracks, it rotated an electric generator that powered two onboard engines that rotated the tracks. This innovative idea turned out to be too complex for British designers and led to deformation of the tracks and wheels. Later, a hydraulic transmission was installed on the TOG1 tank, which also turned out to be unreliable.


During the construction of the TOG 1 tank, a modified model was created with the lowering of the upper branches of the tracks to reduce the height of the tank's silhouette. The TOG 2 tank was created in March 1941 in a single copy and a 57-mm cannon was installed in its turret, although further down the model with wooden tower and the gun didn’t reach.
A little later, the TOG 2 R tank appeared - a modified version of the tank with torsion bar suspension of the road wheels. While the TOG2 tank was undergoing field testing, the . And interest in the TOG tank disappeared, but in January 1942, a 76-mm gun was installed on this tank for testing. It was the first British tank with a 76 mm gun. After some modifications, the tank's turret and the Metadyne electric rotation drive created for it were installed on the tank.


Performance characteristics:
Designation……………….. British heavy tank TOG;
Tank crew………………….. 6-8 people (tank commander, driver, gunner, two loaders, assistant driver);
Tank weight……………………………. 179,200-142,320 pounds;
Length………………………. 33 feet inches;
Height………………….. 10 feet;
Width………………… 10 feet 3 inches;
Tank armament………………… one 17-pounder cannon (76-mm cannon for TOG2*), one 6-pounder cannon (57-mm cannon for TOG2)
Range………………………… 50 miles;
The depth of the ford………………….
Maximum speed……………………….. 8.5 mph;
Suspension type………………….. hard;
Propulsion system……………………… Puckerman-Ricardo diesel.;
Armor……………… 50 mm + 25 mm lining.

Year of development: 1939
Production year: 1941
Combat weight: 81.2 tons
Length: 10075 mm
Width: 3100 mm
Height: 3050 mm
Speed: 12 km/h
Power reserve: 75 km
Radio: no data
Armor
a. Forehead:
25 – 50 mm mm
b. Board:: 25 – 50 mm mm
c. Stern: 25 – 50 mm mm
d. Cutting: 25 – 50 mm mm
e. Body: (top) 25 – 50 mm mm
f. Body: (bottom) 25 – 50 mm mm
g. Roof/Bottom: 25 – 50 mm mm
Crew: 6-8 people
Weapons: 76 mm gun
Manufacturers: England

In July 1939, a discussion took place between the British Minister of Supply, who was responsible for munitions production, and Sir Albert Stern, who headed the Tank Supply Department during the First World War, about the requirements for tanks for combat in Europe. As a result, on September 5, 1939, Sir Albert was asked to work with specialists to develop requirements for the tank. In addition to him, Sir Y. Tennyson D'Encourt, General Swinton, Mr. Ricardo and Major Wilson were invited to the committee - they all played an outstanding role in the creation and production of tanks in the First World War. The committee decided to ask the General Staff to issue a TTT for a heavy tank, and Stern suggested Sir William Tritton of Foster's firm in Lincoln (the main manufacturer of tanks in 1916-18) to cooperate with the committee in these studies.

The General Staff invited committee members to visit France to get acquainted with the new French tanks, and also to meet with officers from the headquarters of the British Expeditionary Force. In the meantime, tactical and technical requirements were issued, and in October 1939 the committee received the official name “Committee for the Development of a Special Vehicle of the Ministry of Supply.” The requirements were similar to those issued to Harland & Wollf for the A20 infantry tank. They envisioned a vehicle with tracks that covered the hull to overcome crater-filled terrain, with armor protecting against fire from 47mm and 37mm anti-tank guns and 105mm howitzers at a range of 100 yards. It was supposed to carry a field gun in the front hull plate to destroy fortifications, it was required to install 40 mm cannons in the sponsons, 7.7 mm BESA machine guns with all-round fire, have a range of up to 50 miles, a speed of 5 mph and a diesel engine. The crew was supposed to be 8 people. The tank had to be transported by rail.

The preliminary design was prepared by the Foster company in December 1939. However, by that time there was no suitable diesel engine, so they intended to use a Pacsman-Ricardo V-shaped 12-cylinder diesel engine with a power of 450 hp, which was planned to be boosted to 600 hp. Taking into account the weight of the car, an electric transmission was provided, the development of which was proposed by the English Electric Company. The vehicle is known as TOG I ("The Old Gang"), and its development began in February 1940. It appeared in October 1940. It had a speed of 8.5 mph and weighed about 50 tons without weapons or sponsons. By this time, the project was changed, the sponsons were eliminated, but a turret for the 2-pounder gun from the A12 Matilda tank was introduced. A 75 mm howitzer was installed in the front hull plate in the same way as in the French Char B-1 tank. The chassis had a rigid suspension without elastic elements and was generally reminiscent of that used on late British tanks of the First World War. Tests showed that the electric transmission did not live up to the designers' hopes, and the engine was burned during testing. On TOG 1, the engine turned an electric generator, which powered two onboard engines that turned the tracks. The control wheel was connected to a potentiometer that changed the voltage on the onboard electric motors and the difference in the rotation speed of the tracks led to the vehicle turning. This well-conceived system turned out to be too complex and led to deformations of the tracks and drive wheels. Therefore, TOG 1 was modified and a hydraulic transmission was installed, which also turned out to be unsuccessful due to the large inertia of the hydraulic pairs, which made control unreliable. In this new version the tank was designated TOG I A.

During the construction of TOG 1, an improved model was developed with the lowering of the upper branches of the tracks to reduce the height of the hull. The TOG 2 tank, built in a single copy in March 1941, was intended to install an enlarged turret with a 57 mm gun and sponsons, as originally designed. However, the sponsons were never installed, and the turret installed for the first tests was a wooden model with a dummy gun and was larger than what was envisaged in the project. The actual turret appeared for installation on the TOG 2R (Revised), a further development that was 6 feet shorter than its predecessor by eliminating the side sponsons and had torsion bar suspension for the road wheels. The TOG 2R was never built and the turret provided for it was made to replace the wooden mock-up of the TOG 2. The mechanical components and assemblies of this tank were similar to the TOG 1.

While TOG 2 was being tested, the heavy infantry tank A22 "Churchill" was adopted and put into production. Interest in the TOG waned, but at the beginning of 1942 a new turret with a 76 mm gun was installed on it for testing. TOG 2, now designated TOG 2*, thus became the first British tank with a 76 mm gun. After some modifications, the turret and the Metadyne electric traverse drive created for it were installed on the A30 "Challenger" tank.

The long period of absence of heavy tanks in the Royal Tank Corps (RTC), caused by an acute financial crisis, ended only in the late 1930s. The presence of such vehicles, equipped with thick armor and powerful weapons, capable of literally breaking through enemy defenses, was caused by new fears of “trench warfare,” the specter of which had haunted the minds of British staff officers for more than 20 years. Considering these features, it is not difficult to guess what officials from the military department demanded from the designers.
Even before the start of World War 2, it became clear that the multi-turret scheme had lost its former relevance. Tanks like the A1E1 or T-35, with a huge number of barrels, had thin armor, and therefore were completely unsuitable for the role of “infantry”. I didn’t want to spend effort and money on developing fundamentally new machines. From this it was concluded that the RTC absolutely needed an analogue of the ancient Mk.VIII “Liberty”, but performed at a qualitatively new level.


A discussion of the requirements for tanks for combat in Europe took place in July 1939. It is quite noteworthy that the discussion included the British Minister of Supply and Sir Albert Stern, who headed the Tank Supply Department during the First World War. Obviously, both honorable gentlemen believed that the Germans would certainly strike at the Maginot Line, the fortifications of which made it possible to withstand a long siege. And here you can’t do without the experience of your senior comrades. The result was quite logical - on September 5, Sir Albert Stern received a proposal to form a committee and work together with tank specialists to develop requirements for a heavy tank. The committee also included Sir Y. Tennyson D'Encourt, General Swinton, Mr. Ricardo and Major Walter Wilson. In addition, Stern invited Sir William Triton from the Foster company to assist in the development of a new machine. All these people took part in 1914-1918 direct participation in the design and construction of the famous “diamonds”, the chassis of which was perfectly suited for overcoming field obstacles.


Soon the committee asked the General Staff of the British Army to issue them requirements for a heavy tank, to which they received an offer to visit France and familiarize themselves with the design of Allied tanks. At the same time, it was intended to find out the opinion of the officers of the headquarters of the British Expeditionary Force. Obviously, the desire of the military did not differ greatly from the committee’s opinion on what a heavy tank should be. As an example, the French B1bis tank “loomed”, which had all the necessary qualities, but did not have sufficiently strong weapons. However, the layout of this vehicle repeated the technical solutions of the later “diamonds”, in which it was once planned to install a gun in the front part of the hull. So it’s not surprising that the tank building orthodoxies decided to combine the old and the new, ahead of their allies.
In October 1939, the committee, which was given the official name “Committee for the Development of a Special Vehicle of the Ministry of Supply,” finally received a full-fledged technical assignment. The design of the tank included an elongated hull and a tracked propulsion unit that completely covered it in height and length. The hull armor was supposed to reliably protect against shells from 37 mm anti-tank guns and 105 mm field howitzers at a range of 100 yards (91 meters). The tank's own armament could be roughly divided into two types: a cannon in the front hull was intended to destroy field fortifications, and two 40-mm cannons and two 7.92-mm BESA machine guns in the side sponsons were supposed to be used to “clean up” enemy trenches. The speed was limited to 5 mph (8 km/h), and the range did not exceed 50 miles (82 km). Such low driving performance was a consequence of the “infantry tank” concept - it was believed that vehicles of this type should not “run away” from infantry. The tank would be delivered to the front edge of the front by rail.


The military department, apparently wanting to play it safe, issued TTZ to two companies at once - Foster and Harland & Wollf. On the side of the former, the same Committee worked, which for itself used the abbreviation TOG, which meant “The Old Gang” (old gang). The same name was applied to the tank, although the designation TOG 1 (TOG No. 1) was also used. In addition, the terms of reference provided for the installation of a diesel engine.
Thus, the TOG preliminary design, presented in December 1939, was a combination of advanced technical ideas and obvious anachronisms. The “old gang” did not deny itself the pleasure of developing a multi-roller chassis with a rigid suspension without elastic elements. This significantly simplified the design and reduced its weight. However, the design weight of the tank was estimated at 50 tons without sponsons, weapons and ammunition, and a powerful diesel engine had not yet appeared. Instead, it was proposed to use a V-shaped 12-cylinder Pacsman-Ricardo diesel engine with a power of 450 hp, which was planned to be boosted to 600 hp. The tank's crew consisted of 8 people: a commander, a driver, a front gun gunner, a loader and four tankmen in sponsons.


Already at this design stage, two miscalculations became immediately obvious. First of all, the weapons scheme clearly did not correspond to the realities of modern warfare. The side sponsons had to be removed, and a turret with circular rotation was now supposed to be installed on the roof of the hull. The second major problem was the transmission. Considering the mass of the tank, the scheme with a planetary mechanism, initially proposed by W. Wilson, was unacceptable and then the English Electric Company had to be involved in the work, which began developing an electric transmission of the original scheme, which consisted of the following. On the TOG tank, the engine rotated an electric generator, which powered two onboard engines that rotated the tracks. The control wheel was connected to a potentiometer that changed the voltage on the onboard electric motors and the difference in the rotation speed of the tracks led to the vehicle turning.


In its finalized form, the project was accepted for implementation in February 1940, and in October the Foster company completed the assembly of the first prototype. The developers managed to meet 50 “dry” tons, but the hull still retained cutouts for sponsons, and a turret from the Matilda II infantry tank was installed on the roof. All TOG armament consisted of a 75 mm in the front hull plate and a coaxial 40 mm cannon and one 7.92 mm machine gun in the turret. To compensate for the increased load on the ground, it was also necessary to introduce wide track tracks.
Testing of the prototype TOG tank continued long and difficult. The tank arrived for road tests on September 27, and on November 6 it was shown to representatives of the army and the Ministry of Supply (MoF). The weight of the tank with the Matilda II turret and without sponsons was 64,555 kg. During testing, the power plant was constantly plagued by overheating problems, which could not be eliminated. Not surprisingly, the engine and transmission eventually failed. Another problem was the low adaptability of the transmission design for installation on a tank, the operation of which led to deformation of the tracks and guide wheels.
At the same time, in terms of basic driving performance, the TOG was quite satisfactory for the ministry. The main test cycle was completed in June 1941, but the MoF insisted that work on TOG continue.
To correct the identified deficiencies, a hydraulic transmission was installed on the prototype, after which the tank received the designation TOG 1A. This option also turned out to be unsuccessful due to the high inertia of the hydraulic pairs, which made control unreliable. Still, tests with hydraulic drive began in May 1943, and a month later the tank was returned to the factory for further modifications. The latest data on TOG 1A dates back to April-May 1944, when the upgraded prototype underwent an additional series of tests. After this, the tank was sent to Chobham, where its traces were lost.
Despite the fact that the positional war on the Western Front long ago ended with the surrender of France and the need for such a tank disappeared by itself, under the influence of Sir W. Churchill and some other officials who were eager to put the new “diamond” into action, work on the TOG continued. The order for the modified TOG 2 prototype (TOG No. 2) was received on May 6, 1940.

To improve technical performance, more radical measures were required, aimed primarily at reducing weight. As a result, the updated model received a chassis of lower height, and the sponsons were left, but the gun in the front hull was still dismantled. Now the main armament, which consisted of a 57-mm gun, was to be placed in a new turret design. The cannons and machine guns in the sponsons were retained, but the sponsons themselves were never installed. However, it was also not possible to immediately get a new turret, so instead of it a wooden model of a simpler shape with a dummy gun was temporarily installed. The diesel-electric powertrain was retained despite the overheating problems that plagued the TOG 1. The changes were as follows.
The drive engine of the two main generators was a diesel engine, which was mechanically connected to the generators.

Generators supplied current to the electric motors on each side. The speed of the vehicle was changed by the fuel pedal of the diesel engine. A manual lever for changing the resistance of the current supplying the electric motor and generator provided additional adjustment of the speed of the machine. By turning the steering wheel connected to a potentiometer, the current resistance in the field windings of two generators changed. As a result of turning the steering wheel in one direction or another, the output power of the electric motor on the opposite side (opposite rotation of the steering wheel) increased due to an increase in voltage in its windings. Another electric motor, powered by its generator, transmitted power to the drive wheel of the other side, helping to turn. This was one of the ways to independently reverse one of the electric motors and turn the tank on the spot (turn around its axis). To make a turn with a radius equal to the width of the tank, one of the tracks was slowed down using pneumatic brakes.


The prototype of the TOG 2 infantry tank made its first factory runs on March 16, 1941. Further tests did not reveal any special comments, but time was hopelessly lost. The tank had a maximum speed of 14 km/h and a range of up to 112 km. Thanks to its chassis, TOG 2 could overcome vertical walls up to 2.1 meters high and ditches up to 6.4 meters wide, which was certainly an impressive result. Six months later, they decided to make new changes to the design of the tank, and therefore its name changed to TOG 2*


The most important modification was the use of torsion bar suspension, which provided better driving performance. In addition to this, a new turret and a 76.2 mm gun were finally installed on the tank.

Testing, which began in April 1943, confirmed that the TOG 2* was the heaviest (more than 81 tons) and most powerful British tank, but the concept according to which it was built was long outdated. Even despite its strong armor, the TOG was inferior in dynamic qualities and armament not only to the German “Tiger”, but even to the weaker Pz.Kpfw.IV with a long-barreled 75-mm cannon. Maneuver warfare was disastrous for such vehicles.
However, in 1942, work began on the design of the modification TOG 2R (R - revised, corrected), in which they intended to reduce the length of the chassis by completely eliminating the sponsons, while maintaining the torsion bar suspension, 76.2 mm turret gun and turret with electric drive. Further development of the heavy infantry tank led to the emergence of the TOG 3 project. However, none of them were ever implemented.


Unlike TOG 1A, the fate of TOG 2* turned out to be happier. After the war, the tank was sent to a warehouse, from where it was soon removed, repaired and transferred to the tank museum in Bovington. By the way, the Paxman engine on it remains “native”, although the tank is not running now.

Performance characteristics of HEAVY INFANTRY TANK TOG and TOG 2*



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