![]() ![]() A small piece of lead-tin wire is included in the case to act as a de-coppering agent, to counteract the buildup of copper from the driving bands of the projectiles. The shells use brass cases lined with waxed paper and use KV-2U percussion primers. Soldiers from Alpha Company, 9th Engineer Battalion, place C-4 explosives onto 37mm anti-aircraft rounds to be destroyed near the city of Bayji, Iraq, on June 20, 2004. The ZSU-37 was developed late in the Second World War, it was a single 37 mm gun mounted in a large open turret on the chassis of the SU-76 self-propelled gun. A turret based version was produced from the late 1980s called the "Type 76" or H/PJA 76. The 37 mm twin mounting was exported to China where it was manufactured and used extensively, as the "Type 65". ![]() However it was later replaced with the ZIF-31 twin 57 mm mounting. A total of 1,872 V-11 mounts were built.Īfter this an 85- calibre 100 mm (3.9 in) anti-aircraft mounts long version, the 45 mm/85, was developed and accepted into service in 1954, it was deployed in twin and quad turrets on a number of classes of vessels, including the Neustrashimyy, Kildin and Kotlin class destroyers. To improve on this, a twin-barrel water cooled mount, the V-11 (called "W-11" in East Germany and Poland because of different Cyrillic transliteration), entered service in 1946, and was in production until 1957. One drawback was that the 70K required a barrel change after every 100 rounds fired. V-11 as a memorial to the defenders of Seraya Loshad fort The V70K was produced until 1955, with a total of 3,113 built. It was fitted in large numbers to Soviet ships during the Second World War, including the T301 class minesweeper. The naval mounting was produced as the 70K, and had entered service before the German invasion of the Soviet Union replacing the semi-automatic 45 mm/46 21-K on many ships. However, it has also been produced in Poland, China and North Korea.Īrmour penetration of the armour-piercing (AP) rounds is reported as 37 millimetres of rolled homogeneous armour (RHA) at 60°at 500 metres range and 28 millimetres of RHA at 90° at 1,500 metres range. Total Soviet production was around 20,000 units, ending in 1945. A total of 200 rounds of ammunition were carried which were fed into the gun in five-round clips. The gun was operated by a crew of eight men. An initial order for 900 units was placed. The weapon was initially installed as a single-barrel weapon on a four-wheeled ZU-7 carriage, and was soon ready for service. ![]() There were no substantial differences found between them.Ħ1-K in Poznan citadel, Poland Land version Firing trials of the new 61-K were conducted in October 1938.Ĭompetitive firing trials were conducted in 1940 between the 61-K and the Bofors 40 mm/56. The task was fulfilled by the chief designer of the factory, Mikhail Loginov, and his assistant Lev Loktev. In January 1938 the Artillery Factory Number 8 in Sverdlovsk was ordered to develop a 37 mm weapon based on the same design. Lyuliev was successful, but the army thought that the 45 mm calibre was a little too large for an automatic field weapon. The development under the guidance of leading Soviet designers M. The Soviet Navy purchased a number of Bofors 25 mm Model 1933 guns in 1935, trials of the weapon were successful and it was decided to develop a 45 mm version of the weapon designated the 49-K. 61-K in Saint Petersburg Artillery Museum. ![]()
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