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History

The KV-1 was criticized by its crews for its poor mobility and lack of any heavier armament than the T-34 medium tank. It was much more expensive than the T-34, without having greater combat performance. This lead Moscow to order a portion of KV-1 assembly lines to shift to T-34 production, which fed into fears that KV-1 production would be halted and the SKB-2 design bureau led by Kotin closed. In 1942, this problem was partially addressed by the lighter, faster KV-1S tank. The production of the KV-1S was gradually replaced by the SU-152 and ended completely on April 1943. However, the capture of a German Tiger tank in January 1943 led to a decision to develop a new heavy tank, which was given the codename Object 237.

In response to intense tank fighting in the summer of 1943, while the Object 237 was still in development, Dukhov's team was instructed to create a stopgap KV tank, the KV-85, which was armed with the 52-K-derivative gun of the SU-85, the 85 mm D-5T that proved capable of penetrating the Tiger I from 1000 meters. The KV-85 was created by mounting an Object 237 turret on a modified KV-1S hull. This necessitated increasing the diameter of the turret ring by adding fillets to the sides of the hull. The radio operator was removed and in his place was inserted an ammo rack for the larger 85 mm ammunition. The hull MG was then moved to the opposite side of the driver and fixed in place to be operated by the driver himself. Soviet industry was therefore able to produce a heavy tank as equally well armed as the Tiger I before the end of 1943. There was a short production run of 148 KV-85 tanks, which were sent to the front beginning in September 1943 with production ending by December 1943. The complete Object 237 prototype, itself an evolution of the cancelled KV-13, was accepted for production as the IS-85 heavy tank. First deliveries were made in October 1943 and went immediately into service. Production ended in January 1944. Its designation was simplified to IS-1 after the introduction of the IS-122, which itself was redesignated to IS-2 for security purposes.

Not Yet Here

IS-1 is a WWII tank so it is not likely to be buyable for some time. It will most likely become a prize for the WWII league.

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Vehicles in Tanktastic
Tank Categories
Anti-Aircraft Tanks - Artillery - Heavy Tanks - IFV Tanks - Light Tanks - MBT Tanks - Medium Tanks - Multiple Launch Rocket Systems - Prototype - Tank Destroyers - Wheeled Tanks
NATO
USA M26 Pershing - M41 Walker Bulldog - M42 Duster - M44 - M48 Patton - M56 Scorpion - T92 Light - T95E6 Medium - M50 Ontos - M60 Patton - MBT-70 - M103 - M109 Paladin - M551 Sheridan - M1 Abrams - M1A2 Abrams Tusk II - M2 Bradley - M270 MLRS - M8 AGS - Stingray - M1128 Stryker MGS
Germany Spahpanzer SP I.C. - Kanonenjagdpanzer - Flakpanzer Gepard - Marder 1A1 - Puma IFV - Raketenjagdpanzer 2 - VT 1 - Leopard 1 - Leopard 2 - PzH 2000
United Kingdom FV101 Scorpion - FV102 Striker - Centurion - FV214 Conqueror - FV4030 Challenger 1 - FV4034 Challenger 2 - FV4201 Chieftain - FV4101 Charioteer - FV510 Warrior IFV
France AMX-13 - AMX-30 - AMX-32 - AMX-40 - AMX-56 Leclerc - ARL-44 - AMX-10RC - AMX-13 F3 AM - AMX-50B - ERC 90 Sagaie
Italy C1 Ariete
Poland PL-01 Concept
Sweden Ikv 91 - Strv 74 - CV 90120t - Strv 103
Warsaw Pact
USSR ZSU-23-4 Shilka - PT-76 - ASU-85 - SU-152 Taran - BMP-3 - BRM-1K - IS-3 - IS-4 - T-10 - Object 279 - T-54 - T-62 - T-64 - T-72 - T-80 - TOS-1 Buratino - 2S1 Gvozdika - 2S14 Zhalo-S (BTR-70)  - 2S23 Nona-SVK - 2S3 Akatsiya - 2S31 Vena - 9P139 Grad-1 - ASU-57 - IS-7 - IT-1 - ZSU-57-2 Sparka - Object 490A
Russia 2S25 Sprut-SD - BMPT Terminator - T-90 - T-90MS - Object 640 Black Eagle - 2S19 Msta-S - T-14 Armata (Object 148)
Ukraine T-84 BM Oplot - BTR-4 Bucephalus
Romania TR-85 Bizonul
Asia
China Type 59 - Type 62 - Type 69-II - Type 79 - Type 83 - Type 83 MLRS - Type 85 - Jaguar MBT - PTZ-89 - Type 99 - PLZ-05
Japan Type 60 - Type 61 - Type 74 - Type 74 ACS - Type 89 IFV - Type 90 Kyu-maru - Type 10 Hitomaru
Israel Sherman M-51 - Magach - Merkava - Pereh Missile Carrier
South Korea K1 88 - K2 Black Panther - K9 Thunder
North Korea Type 82 (PT-85 Sinhung)
India Arjun
Iran Zulfiqar
Pakistan Al-Khalid (MBT-2000)
WWII Tanks
Nazi Germany Panzer II - Panzer III - Panzer IV - Panther - Tiger I - Tiger II - Maus
Soviet Union BT-2 - BT-7 - T-28 - KV-1 - T-34/85 - IS
Air Support
NATO A-10 Warthog - A4M Skyhawk - Bell AH-1 Cobra - F4 Phantom II - UH-1C Hog
Warsaw Pact Mi-24 Hind - Mi-8 Hip - Sukhoi Su-7 - Sukhoi Su-17 - Sukhoi Su-25
Unreleased Vehicles
NATO

Sweden: Grkpbv 90120

Warsaw Pact

USSR: BMP-1

Asia

Israel: MAR-290 Eshel ha-Yarden MLRS

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