Unusual Roscii tanks and the Soviet Union. Amphibious tank T-41, 1932

Unusual Roscii tanks and the Soviet Union.  Amphibious tank T-41, 1932The idea of creation of armored combat vehicles, amphibious, able to travel by land or by water, lured the attention of many engineers tank designers involved in the design of tanks and armored vehicles in the 20's and 30's of the last century. Force tank conquer the watery element, make it able to force a crossing and immediately engage the enemy tried tank builders of Great Britain and Germany. Taking into account the characteristics of the general area of the USSR, abundant rivers and lakes, which in the absence of pontoon bridges and crossings became insurmountable obstacle for the tank, the Soviet government and the supreme military control of the puzzles were put on the early development of Russian amphibious tanks. As is clear experience of the development of this type of machines actually were not, they were created by trial and error. And one of the first experiments to create a floating tank in the Soviet Union was a project of the T-41.

The work on this project began in March 1932, taking the British lightweight floating base tank Vickers-Carden-Lloyd A4E11 purchased in the UK in 1931, the Russian designers, given the bad experiences of the first Russian amphibious tank T-33, set to work. In very little time, a group of engineers and designers by Nikolai Kozyrev, have been developed drawings and layout design of a future machine, booking and placement of weapons. In July 1932, was created by an experienced model, who immediately went to the factory test. Amphibious Corps was made of 9.5 mm iron armor plates are not assembled and riveting way to the corners of solid steel, its density is ensured through the introduction of the rubber seals at the joints. The layout of the tank was a little modified version of the traditional, spinning tower with a radial arc of fire was located on the body, but was shifted to the left relative to the longitudinal axis of the machine. Turret rotation produced muscle force arrow tower, why envisaged shoulder and spinal supports.

Unusual Roscii tanks and the Soviet Union.  Amphibious tank T-41, 1932

Armament was limited to one tank 7,62 DT-29 machine gun mounted in a ball bearing. In the central part of the hulls was a 4-cylinder, carburetor-type engine Ford-AA, has an output of 42 hp and allows the car to move on solid ground at a speed of over 35 km per hour. Chassis remained practically without changes, such as at the British Wedge "Carden-Loyd." For the movement of the water in the rear of the hull was installed three-blade propeller, with located on the sides with 2 control planes. For pumping seawater was provided water pump-action pump located in the rear of the machine next to the 120-minute liter fuel tank. In July 1931 experienced a standard car was presented at the factory tests. In tests it was found out that the engine power is not enough for the present implementation of the tank in the fighting, impacted very large mass of cars, 3, 2 ton, in fourth movement was impossible. The results of industrial tests did not meet the selection committee, but after all the identified deficiencies amphibian, a month later, in August, once again came to the test site at which machine undergone a painstaking testing, but the results of the retests machine was again rejected. The highest body, rather weak bulletproof armor that did not allow amphibians long time to be under enemy fire, low permeability and the inability to maneuver on the water, served as a prerequisite for not taking the machine into service.

Yet the fall of the same year, was presented to the tests in the upgraded model which takes into account all errors found in the first version of the machine. Mass of amphibians has been reduced to 2.9 tons, installed a new engine GAZ-AA, the propeller was equipped single control plane and reverse drive, allowing the T-41 move through the water not only forward, and back, the height of the machine was also reduced. Small changes were made chassis, was shot one supporting roller. Hopes that the new tests will be shown over the highest results in the end did not materialize. Assessing the ability of modern amphibians, the members of the testing committee concluded that it inexpedient adopting, but it was decided to release a small batch of machines for 1932. It is clear that it was released just 12 light amphibious tanks T-41 (serial), in the majority, they were all in training units and information about military use of these machines is not. Yet, this is not crowned with success of the project, of course, had an impact on the subsequent development of Russian amphibious tanks, which were taken into account in all the feeble and the strengths of the 1 st of the first amphibious tanks T-41.

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