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C-51 - experienced Soviet heavy self-propelled artillery unit (SAU) during World War II. This war machine was designed in the autumn of 1943 on the basis of the heavy tank KV-1S Central Artillery Design Bureau (TsAKB) led vasiliy grabin. The letter C in the title adopted by ACS then notation TsAKB consistent development and the index of 51 was the serial number of the project. Installing the C-51 as a whole has successfully passed field tests, but adopted the Workers 'and Peasants' Red Army was not taken and not commercially produced.
Transition to the active Red Army offensive in late 1942 showed the need for equipping its mobile artillery special power. Against the powerful bunkers and fortified buildings in urban combat was sometimes not even enough firepower towed and self-propelled artillery caliber of 152.4 mm. To solve such problems in service with the Red Army was towed 203 mm howitzer of the sample in 1931 (B-4), but its extension to the distance direct fire was a considerable risk for the calculation, the tractor and the most tools. In addition, low transport speed howitzer B-4 on the march did not allow her to use the opportunities in the fast and deep strikes deep into the enemy's defenses. Therefore, at the beginning of 1942 he was made the preliminary design of the U-19 placement howitzer B-4 on a fully armored assault guns SAU class-based heavy tank KV-1. However, the design weight of more than 60 tonnes, the already overloaded and unreliable transmission of the KV-1 would be a burden. A second limitation of such automatic control system was a small elevation howitzers, not allowing her to use the opportunities for the hinged fire and long-range shooting from the closed position.
Therefore, the fall of 1943 to design and build TsAKB armed howitzer B-4 SAU open-type, which is at an acceptable weight has good mobility and maneuverability. Tests of the new self-propelled guns, designated C-51, passed on Gorokhovetsky artillery range in March - April 1944. Installing the C-51 has passed 115 km and took 209 shots, the results of which it recommended for adoption by the Red Army at addressing the identified deficiencies. The latter included the largest rollback SAU at a shot and knocking down pickup, especially at low elevation. Also, due to the bias unit during the dispersal of the shot shells is rather large. Also, members of the competent commission reported "satisfactory performance and durability of machines guns" and the chassis, but with a caveat to the "Transmission Group, which during the test had a number of defects due to its poor technical condition and worn parts." These shortcomings in the opinion of assessors could be eliminated "by staging coulters at the rear shunt, as was done in the 203-mm self-propelled gun SU-14 ... '.
Also in the book M. Kolomiets dedicated KV tank, referred to a similar in design to the installation of 152.4 mm gun BR-2, which took place in July 1944 trial in Leningrad and the question of the mass production of automatic control system based on the JS in the autumn of the same year. However, this has not been done, and to experiment with this type of self-propelled guns were continued after the war as part of a large-caliber artillery capable of firing missiles with nuclear warheads. Serial Soviet self-propelled guns of this type has already become a modern 2S5 "Hyacinth".
ru.wikipedia.org/wiki/%D0%A1-5…
Transition to the active Red Army offensive in late 1942 showed the need for equipping its mobile artillery special power. Against the powerful bunkers and fortified buildings in urban combat was sometimes not even enough firepower towed and self-propelled artillery caliber of 152.4 mm. To solve such problems in service with the Red Army was towed 203 mm howitzer of the sample in 1931 (B-4), but its extension to the distance direct fire was a considerable risk for the calculation, the tractor and the most tools. In addition, low transport speed howitzer B-4 on the march did not allow her to use the opportunities in the fast and deep strikes deep into the enemy's defenses. Therefore, at the beginning of 1942 he was made the preliminary design of the U-19 placement howitzer B-4 on a fully armored assault guns SAU class-based heavy tank KV-1. However, the design weight of more than 60 tonnes, the already overloaded and unreliable transmission of the KV-1 would be a burden. A second limitation of such automatic control system was a small elevation howitzers, not allowing her to use the opportunities for the hinged fire and long-range shooting from the closed position.
Therefore, the fall of 1943 to design and build TsAKB armed howitzer B-4 SAU open-type, which is at an acceptable weight has good mobility and maneuverability. Tests of the new self-propelled guns, designated C-51, passed on Gorokhovetsky artillery range in March - April 1944. Installing the C-51 has passed 115 km and took 209 shots, the results of which it recommended for adoption by the Red Army at addressing the identified deficiencies. The latter included the largest rollback SAU at a shot and knocking down pickup, especially at low elevation. Also, due to the bias unit during the dispersal of the shot shells is rather large. Also, members of the competent commission reported "satisfactory performance and durability of machines guns" and the chassis, but with a caveat to the "Transmission Group, which during the test had a number of defects due to its poor technical condition and worn parts." These shortcomings in the opinion of assessors could be eliminated "by staging coulters at the rear shunt, as was done in the 203-mm self-propelled gun SU-14 ... '.
Also in the book M. Kolomiets dedicated KV tank, referred to a similar in design to the installation of 152.4 mm gun BR-2, which took place in July 1944 trial in Leningrad and the question of the mass production of automatic control system based on the JS in the autumn of the same year. However, this has not been done, and to experiment with this type of self-propelled guns were continued after the war as part of a large-caliber artillery capable of firing missiles with nuclear warheads. Serial Soviet self-propelled guns of this type has already become a modern 2S5 "Hyacinth".
ru.wikipedia.org/wiki/%D0%A1-5…
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Look at this self-propelled gun, and now begin to understand what else was inspired by "Games Workshop" when we created the self-propelled guns "Basilisk" in Warhammer 40,000.