FV4005 Stage II, 8 Kills, 8.888k Damage- World of Tanks

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FV4005 Stage II, 8 Kills, 8.888k Damage- World of Tanks
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Historical Info
The story of Britain's most powerful tank destroyer began in late January of 1951, when it was decided to develop a tank destroyer even more powerful than the FV4004 Conway, armed with a 120 mm L1A1 gun. It was destined to become the most powerful tank destroyer ever built. According to the requirements, it had to confidently penetrate a target with 150 mm of armour at 60 degrees from almost two kilometers away. This target was based on the IS-3. After appearing at the Victory Parade in 1945, this tank was considered the most dangerous opponent of Western tanks for decades.
Anti-IS QF L4 gun and its variants

In order to meet these requirements, the designers had to find a much more powerful gun than the L1A1. The British didn't bother with the small stuff & went right up to a caliber of 7.2 inches (183 mm). Using such a powerful caliber was no accident. This new gun was based on the 183 mm BL 7.2 inch Howitzer, which dates back to WWI. Initially, the howitzer had a barrel length of 22.4 calibers, but this was extended to 33.1 calibers. Unfortunately, even this extension was not enough to fight Soviet tanks.

In 1950, work started on the QF L4 gun, the most powerful tank gun in the world. The gun weighed a little under 4 tons & had nearly 87 tons of recoil force. In order to clear the fighting compartment of propellant fumes, the gun had a fume extractor fitted. Only one type of shell was planned for this gun: HESH (High Explosive Squashed Head). Not only is the caliber of the L4 stunning, but also the weight of the rounds. The propellant was separate from the shell, but this didn't make the loader's job much easier: the mass of the shell was 72 kg, & the mass of the propellant was 32.8 kg.

On November 9th, 1950, the War Office held a meeting to determine what vehicle this super-powerful gun would be placed on. The meeting resulted in four variants:

A fully armoured fighting machine (effectively a tank) with a fully rotating turret. An SPG with powerful front armour, but a limited traverse angle. An SPG with a fully rotating turret, but thin armour. An SPG without armour. Variant 1/2: FV215

The contract to develop the first variant went to Morris and was later transferred to Vickers-Armstrong. The chassis of the heavy FV200 tank was used, with the suspension from the heavy FV214 Conqueror tank. The project had multiple names: Heavy Gun Tank No.2, Heavy Anti-Tank SP No.2, FV215 Heavy Anti-Tank SP No.2 or simply FV215. The index Heavy Gun Tank No.2 was incorrectly interpreted by historians, resulting in a mythical project called FV215B. In reality, all these indices pointed to the same vehicle armed with the 183 mm L4 gun.

This project combined the first and second variants. Theoretically, the turret could rotate fully, but the gun was limited to firing within a 90 degree arc. The turret was placed in the rear in order to prevent the huge barrel from sticking out too far. The ammunition capacity was only 20 shells. The rate of fire of the tank was supposed to reach 6 RPM. but whoever set that requirement was a hopeless optimist. The size of the turret did not allow for a loading mechanism, and loading that quickly by hand was not possible. Aside from the gun, the tank had two machineguns: one coaxial and one AA machinegun on top of the turret.

The 65 ton vehicle was supposed to accelerate to 31.7 kph. In order to achieve this, the tank would have an 810 hp Meteor Mk.12 engine. As for the armour, it kept changing throughout the development process. The thickness of the upper front plate varied between 125 and 152 mm, the sides were 50 mm thick (plus spaced armour). As for the turret, the specification was only for the front, which was 254 mm (10 inches) thick.

The FV215 Heavy Anti-Tank SP No.2 was not meant to be. Morris was supposed to first build a full scale model and then two prototypes: one for mobility trials and one as a target for armour testing. In June of 1954, Vickers-Armstrong, the new owner of the contract, was given the same task. Development of the SPG continued until January of 1957. At that point, the full scale model and 80% of the blueprints were ready. But, the War Office got its own Khrushchev and the development of the FV215 Heavy Anti-Tank SP No.2 was shut down in favour of ATGMs.

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