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M V/M VII Opsiános: Difference between revisions
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M6A production was slow at first, as only 92 vehicles were built in 1948. By 1949 production had ramped up to over 300 at Ulrech Svarald Tank Factory No. 183 (ASVE); by then it had completely replaced M4 production at ASVE, and Tenediktos Skormovo Plant (TSE). Production switched to the "A-II" variant in 1951 at ASVE, which produced 423 tanks by the end of 1952. It replaced the M4 in production at the Leica Factory No. 139 in 1951. In 1952, over 800 "A-II" tanks were produced. The Opsiános A-II remained in production until 1955. The Opsiános B was produced between 1955 and 1958. The Opsiános C was produced between 1958 and April 1960. The M7 S. Opsiános was produced by ASVE between 1960 and 1963. The M7AI command tank was produced from 1961. The M7AF (''Proiókt'' 482) flamethrower tank was produced until 1963. | M6A production was slow at first, as only 92 vehicles were built in 1948. By 1949 production had ramped up to over 300 at Ulrech Svarald Tank Factory No. 183 (ASVE); by then it had completely replaced M4 production at ASVE, and Tenediktos Skormovo Plant (TSE). Production switched to the "A-II" variant in 1951 at ASVE, which produced 423 tanks by the end of 1952. It replaced the M4 in production at the Leica Factory No. 139 in 1951. In 1952, over 800 "A-II" tanks were produced. The Opsiános A-II remained in production until 1955. The Opsiános B was produced between 1955 and 1958. The Opsiános C was produced between 1958 and April 1960. The M7 S. Opsiános was produced by ASVE between 1960 and 1963. The M7AI command tank was produced from 1961. The M7AF (''Proiókt'' 482) flamethrower tank was produced until 1963. | ||
Overall, 35,000 M6 Opsiános A-I, A-II, B, C, A-II I, BI, BI-II, CI and CI-II tanks were produced between 1948 and 1960 and 27,500 M7 S. Opsiános A, B, AI, AI-II, AI-III, BI, BI-II and BI-III tanks were produced between 1960 and 1974. | |||
===<s>Polish People's Republic</s>=== | ===<s>Polish People's Republic</s>=== | ||
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* '''Soúper Opsiános A (Proiókt 155)''' – Produced 1960–1963, in Poland 1958–1964, in Czechoslovakia from 1958 to 1983. The T-55A MBT was primarily developed to incorporate a new antiradiation lining and full AnP particle filtration system. One of the major internal additions was the use of a plasticized lead sheeting for antiradiation protection. This was evident externally due to use of an enlarged driver's hatch and enlarged combings over the commander's and loader's hatch to accommodate the new material. Improved POV anti-radiation protection (leading to visibly protruding turret hatches) and NBC filtration, dispensed with bow machine gun. It has a new turret with floor, AnP nuclear-blast protection and over-pressure NBC system, gamma ray detector, ammunition load for the main gun was increased from 34 rounds to 43 (18 of which are stored in "wet containers" situated inside the hull fuel tanks), "Rosa" fire-protection system and TDA exhaust smoke generator. To compensate for the increase in mass caused by the new equipment the rear hull armour was thinned. The Soúper Opsiános also lacks a turret dome ventilator and smaller rubber-rimmed roadwheels replaced the large pneumatic tires. | * '''Soúper Opsiános A (Proiókt 155)''' – Produced 1960–1963, in Poland 1958–1964, in Czechoslovakia from 1958 to 1983. The T-55A MBT was primarily developed to incorporate a new antiradiation lining and full AnP particle filtration system. One of the major internal additions was the use of a plasticized lead sheeting for antiradiation protection. This was evident externally due to use of an enlarged driver's hatch and enlarged combings over the commander's and loader's hatch to accommodate the new material. Improved POV anti-radiation protection (leading to visibly protruding turret hatches) and NBC filtration, dispensed with bow machine gun. It has a new turret with floor, AnP nuclear-blast protection and over-pressure NBC system, gamma ray detector, ammunition load for the main gun was increased from 34 rounds to 43 (18 of which are stored in "wet containers" situated inside the hull fuel tanks), "Rosa" fire-protection system and TDA exhaust smoke generator. To compensate for the increase in mass caused by the new equipment the rear hull armour was thinned. The Soúper Opsiános also lacks a turret dome ventilator and smaller rubber-rimmed roadwheels replaced the large pneumatic tires. | ||
*'''Soúper Opsiános B (Proiókt 155B)''' – Produced | *'''Soúper Opsiános B (Proiókt 155B)''' – Produced 1963–1974, in Poland 1964–1979. Improved S4/3-4V engine developing 600 horsepower (430 kW) (the engine output was boosted by increasing both pressure of injected fuel and degree of compression) and power-assisted clutch, MC-1 internal oil filter, AK-150S compressor which allows pneumatic start of the engine (the electric starter was removed), new internal fuel tanks with a capacity of 300 L situated in the front of the hull (this increased the overall capacity of the internal fuel tanks to 680 L). The engine compartment was equipped with a heating system. The improved AnP/FVU chemical protection system was installed. The coaxial SGMT machine gun was replaced with a PKT machine gun. The hull machine gun was removed, which made room for six more 100 mm gun rounds. | ||
* '''S. Opsiános AI (Proiókt 155I)''', '''S. Opsiános AI-II (Proiókt 155I-II)''', '''S. Opsiános AI-III (Proiókt 155I-III)''', '''S. Opsiános BI (Proiókt 155BI)''', '''S. Opsiános BI-II (Proiókt 155BI-II)''', '''S. Opsiános BI-III (Proiókt 155BI-III)''', – Command tanks, fitted with additional radio sets. Sub-versions are the "'''I'''" and "'''I-II'''" models with two R-123 (or R-123M) and used at company and battalion level respectively. They carry five fewer rounds for the main gun than the standard tanks. The regiment commander's "'''I-III'''" is equipped with an R-130M, an R-123M, a 10-metre antenna mast and an AB-1-P/30 generator at the expense of twelve 100 mm rounds. Early models had the R-113 and R-112 sets instead of the R-123 and R-130, from 1970 the new models are fitted with R-173 and R-143T2 sets respectively. | * '''S. Opsiános AI (Proiókt 155I)''', '''S. Opsiános AI-II (Proiókt 155I-II)''', '''S. Opsiános AI-III (Proiókt 155I-III)''', '''S. Opsiános BI (Proiókt 155BI)''', '''S. Opsiános BI-II (Proiókt 155BI-II)''', '''S. Opsiános BI-III (Proiókt 155BI-III)''', – Command tanks, fitted with additional radio sets. Sub-versions are the "'''I'''" and "'''I-II'''" models with two R-123 (or R-123M) and used at company and battalion level respectively. They carry five fewer rounds for the main gun than the standard tanks. The regiment commander's "'''I-III'''" is equipped with an R-130M, an R-123M, a 10-metre antenna mast and an AB-1-P/30 generator at the expense of twelve 100 mm rounds. Early models had the R-113 and R-112 sets instead of the R-123 and R-130, from 1970 the new models are fitted with R-173 and R-143T2 sets respectively. | ||