1in the summer and autumn of 943, according to Stalin's own orders, Colonel Zaviarov, a technical soldier from the headquarters of Soviet armored tanks, led a huge investigation team to the battlefield in Kursk, which had just subsided. They found that the protective performance of к V series tanks is no longer effective in the face of the increasing firepower of the German army, and the new tanks need to strengthen their protective performance, so they started the research and development plan of new heavy tanks, heavy tanks in the 244, 245 and 248 projects. Finally, the Jing Ke Design Bureau and the Dukhov Design Bureau combined the Jing Ke-type locomotive with good bullet-proof appearance with the Dukhov turret to design the Stalin -3 model, and the project 1944 10 10/0/01703 was sent to the kubinka armored proving ground outside Moscow to start the sports car test. After passing the sports car test, the Soviet military conducted a strict acceptance test. After the acceptance test was successful, the 703 project was immediately presented to zhukov and Marshal Aleksandr Vasilevsky. The two marshals reported the performance results 1944 1 1 to Stalin in June. Stalin agreed with this, and ordered the 703 project to be incorporated into Soviet equipment, officially numbered ис-3, and immediately organized its mass production in Kirov factory in Chelyabinsk.
This model was installed until 1960, and it was not until the advent of the T-62 medium tank that IS-3 began to withdraw from the historical stage.
-7, full name Stalin -7, former Soviet model: ис-7, engineering code: 260 Project.
At the end of 1945, the Beijing Design Bureau of the Soviet Union began to develop the "ис-7" heavy tank. The nominal chief designer is still Jing Ke, but the actual project designer is Shashi Mulin, the chief designer of ис-2. Sha Xilin abandoned the previous design ideas and prepared to build an unprecedented heavy tank.
1946, "Kirov" factory began to assemble two prototypes with different structures, but both prototypes were code-named Project 260. 1September 8, 946, the prototype was completed. 1946 65438+On February 25th, the prototype passed the sports car test.
In the summer of 1948, Kirov factory produced four pre-production vehicles, which successfully passed the national test. Here, the almost invincible "ис-7" heavy tank is almost perfect. 1949, Kirov factory won the first batch of orders for 50 "ис-7", and the world's most powerful heavy tank designed by talented master Shashi Mulin is about to be born! Unfortunately, almost at the same time, the high-level orders did not allow the development and production of any tanks weighing more than 50 tons. In addition, due to the adoption of too many new concepts and technologies, there are still some problems in the reliability and crew adaptability of ис-7, and the most fatal thing is its amazing cost: you can buy 3-4 T-54 main battle tanks with the money of purchasing1"ис-7" tanks! But these problems are not insurmountable. However, all this is irreversible, and the production line for ис-7 tank was changed to produce ис-4 heavy tank. Shashi Mullin's efforts went down the drain.
In the end, "ис-7" heavy tank was not put into mass production, but its position in the history of tanks in the world is beyond reproach: the "ис-7" tank, which was born in the 1940s, has the same defensive performance as NATO main battle tanks in the 1960s (such as "M60" in the United States and "Emirates" in the United Kingdom) and has remote control function. Undoubtedly the strongest chariot of that era. Apart from the cost, the only weakness of the "ис-7" tank is that the fire control system is relatively low, but this is not a fatal defect for this impenetrable monster tank at that time.
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