37-mm Anti-aircraft 100-K,The USSR

Before the start of the Great Patriotic War, the Soviet Government paid the most serious attention, along with the production of other types of weapons and military equipment, to air defense issues, including the development and improvement of anti-aircraft artillery weapons, as one of the most important means of gaining air supremacy. In the 1930s, work was actively carried out in the USSR to create new small-caliber anti-aircraft guns intended for military air defense. At the beginning of 1938, a new 37-mm automatic anti-aircraft gun was designed at OKB-15, and already in March of the same year at the Artillery Plant named after V.I. Kalinin No. 8 (Kaliningrad, Moscow region), a group was sent to put it into production.

The 37-mm anti-aircraft gun, indexed “100-K”, was created by a design team consisting of E. V. Charnko, I. A. Komaritsky and V. Lyuliev V. I. Shelkov. The automatics of the 100-K cannon operated due to the energy of the gases discharged from the bore. The machine was powered from a drum-type magazine with a capacity of 6 rounds. The gun had a quick-detachable monoblock barrel with a screw-on breech. One of the design features of this gun was a very powerful active slot brake with an efficiency of about 70%. Thanks to this brake solution, the designers were able to abandon the rollback brake, leaving only the outer knurler. In April-May 1938, the 100-K cannon successfully passed factory tests. Delays in firing occurred only due to incomplete recoil (0.24%) and insufficient cartridge delivery (1.15%), which was due to excessive overheating of the barrel only with a continuous burst length of more than 120 shots. The swinging part was mounted on a four-frame carriage with an inseparable four-wheel drive from an experimental 45-mm anti-aircraft gun 49-K. The transfer time from traveling to combat position was one minute. In July 1938, a new 37-mm anti-aircraft gun was sent to the Research Anti-Aircraft Artillery Range for proving ground tests.

According to the commission’s report dated December 25, 1938, the 37-mm 100-K anti-aircraft gun met the requirements, but its design still required improvement. However, the choice fell on another 37-mm anti-tank gun 61-K KB of the plant. Kalinin under the leadership of M. N. Loginov, which was adopted by the Red Army under the name “37-mm automatic anti-aircraft gun model 1939” and all work on the 100-K system was discontinued.

Years of release – 1938
Total issued – no data
Mass in firing position – 1850 kg
Barrel length – no data
Length of the rifled part – no data
Calculation – 6 people
Speed ​​- up to 80 km / h
Rate of fire – 300 rds / min
Longest firing range – no data
Direct fire range – no data
Angles of fire:
Horizontal – 360 °
Vertical – 5 ° + 85 °

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