Author: sp15 (US server) The list of previous parts is at the bottom of the article. While I’m working on an article about how the S-tank could work in WoT, here is something I forgot to cover First entering the service in 1957, the Strv 74 was part of the Swedish attempt to modernize its armored force in the early-mid 50′s. The vehicle was a modification of the WW2 era Strv m/42 design, which had provided the main firepower of the Swedish armored forces between 1943 and 1953. The main difference between the m/42 and the Strv 74 was the use of a longer 75mm gun and the use of a bigger turret to house the new gun. The idea of rearming the Strv m/42 with a more powerful gun was kicked around from as early as 1944, when it ebcame clear that the short 75mm gun would no longer be a viable anti-tank weapon. The early attempts to improve the Strv m/42´s firepower were however unsuccessful and were cancelled in 1948. 1944 schematics for the “divided turret” The original idea from 1944-48 was to use a new type of turret with the gun placed as close to the rear as possible and to have the gun equipped with a 3 round magazine, which would be fed by the loader. The design got as far as the prototype stage, but it was scrapped after the war with the project cancellation. In 1954, the idea of upgunning the Strv m/42 was brought up again – it became clear that the then-current tanks of the Swedish army with the exception of the recently purchased Centurion Mk.3 were hopelessly obsolete even against late WW2 designs, like the T-34-85. A research committee was formed to discuss how the Strv m/42 was to be improved and several options were proposed. The first option was to replace the turret of the vehicle – this was referred to as Option A and was divided into three alternative turret designs. A.1: New turret of conventional type A.2: New turret of type “AMX” (oscillating) A.3: Turret of type “Divided Turret” (the 1944-48 project) The 2nd of these options (Option B) was to simply rebuild the tank to its tank destroyer version (Pvkv m/43), 86 of which were already in service with the army. Of the proposed alternatives, the A.1 was preferred most, as it would allow the tank to keep its impressive 15dg of gun depression – it would also be the cheapest solution. However, this option would increase the weight of the vehicle the most and this, plus the massive turret, would mean that the armor would have to be reduced. Option A.2 was discussed but ultimately scrapped, since it was found that the turret ring of the AMX 13 was too big to fit the m/42. Theoretically, it would offer good firepower with only a slight increase in weight, but with a big loss in gun depression. The third and final variant, the A.3, was dismissed almost right off the bat, most likely due to the complexity and cost of the mechanical loading system. Strv 74-A.1 plans from 1954 Re: FTR Publication Unread postby sp15 » Tue Aug 26, 2014 6:02 pm Swedish tanks Part 18: Strv 74 Image While im working on an article to address how the S-tank could work in Wot here is something I forgot to cover First entering service in 1957 the Strv 74 was part of a Swedish attempt to modernize its armored force in the early-mid 50s. The vehicle was a modification of the ww2 era Strv m/42 design which had provided the main firepower of the Swedish armored forces between 1943 and 1953. The main difference between the m/42 and the Strv 74 was the use of a longer 75mm gun and the use of a bigger turret to house the new gun. The idea of rearming the Strv m/42 with a more powerful gun had been around from as early as 1944 when it was becoming clear that the short 75mm gun was no longer a viable anti-tank weapon. The early attempts with improving the Strv m/42´s firepower were however unsuccessful and were canceled in 1948. 1944 schematics for the “divided turret” Image The original idea from 1944-48 was to use a new type of turret with the gun placed as close to the rear as possible and have the gun equipped with a 3 round magazine which would be fed by the loader. The design got as far as the prototype stage but it was scrapped after the war with the project cancellation. In 1954 the idea of upgunning the Strv m/42 was brought up again, it had become clear that the current tanks of the Swedish army with the exception of the recently purchased Centurion mk3 were hopelessly obsolete even against late ww2 designs like the t34-85. A research committee was formed to discuss how the Strv m/42 was to be improved, and several options were proposed. The first option was to replace the turret of the vehicle, this was referred to as option A and was divided into three alternative turret designs. A.1: New turret of conventional type A.2: New turret of type “AMX” (oscillating) A.3: Turret of type “Divided Turret” (the 1944-48 project) The 2nd of these options (option B) was to simply rebuild the tank to its tank destroyer version (Pvkv m/43) 86 of which were already in service with the army. Of the proposed alternatives the A.1 was preferred most as it would allow the tank to keep its impressive 15dg of gun depression, it would also be the cheapest solution. However this option would increase the weight of the vehicle the most and this plus the massive turret mean that the armor had to be reduced. Option A.2 was discussed but ultimately scrapped since it was found that the turret ring of the AMX 13 was too big to fit the m/42, theoretically however it would offer good firepower with only a slight increase in weight but with a big loss in gun depression. The third and final variation A.3 was dismissed almost right of the bat, most likely due to the complexity and cost of the mechanical loading system. Strv 74-A.1 plans from 1954 My interpretation of the Strv 74-A.2 In all the cases, the tank was to be rearmed with the Lvkan m/36 75mm L/60 anti-aircraft gun. This gun was going out of service and was compatible with the 75mm armor-piercing ammunition already developed during and after World War 2 for existing anti-tank guns, so it was an ideal and cheap solution. As it became clear that alternative A.1 was Continue reading →

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