WW2 KV 1 Model 1941 Late M1942 footag - КВ 1 серийный Танк танк клим ворошилов 1- Part 3

Originally uploaded on Mar 4, 2020.

WW2 KV-1 Model 1941 Late M1942 footage - КВ-1 серийный - Танк, танк клим ворошилов 1, Part 3.
KV-1B - KV-1C late production.

The development of the KV-1 began after the heavy tanks T-28 ( T-28 was actually classed as a Medium tank) and T-35's flaws came to light.

During the development in 1937 the T-100s and the SMK prototype were designed and both had tandem turrets, heavy armour, wide tracks, and used the torsion-bar suspension. These tanks were tested in 1939, during the operations in Finland during the "Winter War”
These heavy tanks proved to be resistant, but showed very poor reliability and mobility, were costly and difficult to maintain.

But a single-turreted variant of the SMK was drawn up, named the KV, which was named after the then Soviet Defense Commissar Kliment Voroshilov. the KV prototypes outperformed the T-100 and SMK and was subsequently approved for a 50-unit pre-series of tanks and after testing the first tanks “model 1939”, were delivered in March 1940.

The model 1939 was nearing 45 tons and proofed to be challenging to steer, the transmission wasn't able to cope with the tanks weight, and vision was also limited, with narrow vision slits. But with it's immense weight, and large tracks the tank proofed to have excellent traction on soft ground.

The first model production was meant to have the 76.2 mm (3 in) F-32 as main armament, but because of limited production the medium-velocity “short” barrel L-11 was fitted but the L-11 was deemed insufficient in performance and was later replaced, and the M1940 would later be equipped with the longer F-32 gun and a new mantlet.

During 1940 and early 1941. 141 model 1939s were delivered, followed by 243 to 250 of the model 1940.

The model 1941 was designed to fit the same gun (F-34 gun) installed on most T-34/76s, in a new cast turret and was designed by Chelyabinsk.
The hull, sides and turret were protected by an additional 25 to 35 mm of extra armor. It would still have the underpowered V12 diesel engine.
Production would start at Chelyabinsk but the first M41's would arrive at the front in early to mid-1942 and 1200 were made at the end of it's production.
The Late M41's would be outfitted with the ZiS-5 76.2 mm longer barreled gun.

The model 1942 was a late up-armored model, armed with the 76.2 mm ZiS-5 gun with a cast or welded turret.
But because of it's raising weigh, with each upgrade, it proofed to be still under-powered even with the new a modified V12 V-2K Diesel engine, also the transmission proved often prone to break downs.
and after 1700 M42's were produced the production was stopped in favor of better designs.

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■ Information obtained from several sites.
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