In mid-1943, involved in the production of vehicles m/41 and m/42 to the Swedish army according to the plan, but also to the neutral Swedes got information from Finland and Germany, on the basis of which Sweden has concluded that light tanks m/41 and m/42 would not be sufficient to avert a potential invasion.
Representatives of the Swedish army had the opportunity to study in Finland captured tank T-34, whose structures were impressed. Based on the results of this research it was decided to build a larger and heavier tanks, and even in the category of tanks "light". Also on the basis of these materials proposed by the company Scania-Vabis improvement program tanks TNH-Sv (Strv m/41), in the form of two heavily revised versions of this machine by including modern elements into the original Czech design, especially the angled and reinforced armor, a new modern osmiválce Scania on the performance of 220 hp.with. and strong, 57mm anti-tank cannon. The weight of both designs is compared to the original TNH-Sv of course lifted about 2, or 4 tons.
This project was competing in particular with the project of the company Landsverk (Terra) on the role of a new modern light tank in the Swedish army. Terra even these projects, however, were rejected.
Option 1:
Pancéř hull Front upper plate: 35mm (30 st.) Discord between the top and bottom front plate: 65mm Lower glacis: 30mm (26 st.) The bottom of the tank: 15mm The lower part of the sides: 30mm (78 st) The top part of the sides: 30mm (55 st.) Rear portion: 15mm (77 st.) The driver's hatch: 60mm (rounded) The lower part of the hull above the strip: 10mm
turret Armor The front part of: 50mm (60 st) The front part of the roof: 25mm (30 st.) The middle part of the roof: 13mm The rear part of the roof: 15mm (30 st.) Gun mantlet: 25mm (40 st., rounded) Back: 30mm (60 st., rounded) The floor of the tower: 13mm
Armament: 57mm L/50,5 Pvkan m/43 Ammunition for cannon: 80 rounds Weight: 13t Max.speed: 45 km/h Engine: Scania-Vabis 220 to.with.
Option 2:
Pancéř hull Front upper plate: 40mm (27 st.) Discord between the top and bottom front plate: 65mm Bottom plate: 10mm (30 st.) The bottom of the tank: 15mm The ceiling of the fuselage: 13mm The lower part of the sides: 35mm (78 st) The top part of the sides: 35mm (55 st.) Back: 20mm (75 st) The driver's hatch: 60mm (rounded) The lower part of the hull above the strip: 10mm
turret Armor Front part: 50mm The front part of the roof: 20mm (20 st.) The rest of the roof: 13mm Gun mantlet: 35mm (70 st., rounded) Back: 35mm (70 st., rounded) The floor of the tower: 13mm
Armament: 57mm L/50,5 Pvkan m/43 Ammunition for cannon: 80 rounds Weight: 15t Max.speed: 45 km/h Width of belt: 380mm Diameter of running wheel: 800mm Fuel tank: 400 liters Engine: Scania-Vabis 220 to.with.
URL : https://www.valka.cz/TNH-Sv-S-III-t177095#521764
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