In addition, due to the large distance between the first and second road wheels, the caterpillar was constantly dropped.Īs a result, samples of the R-39 tank were found not to meet the specified characteristics, and the project was curtailed. The maximum speed afloat did not increase, but remained the same, but the movement of the car on land due to the removal of the propellers turned out to be very difficult. But tests showed that the tank only got worse. It was improved by equipping it with propellers outside the hull, and also shifted the axis of rotation of the tower by 240 mm towards the bow to reduce the trim. Ī month later, a second sample was collected. But such an arrangement required additional protection for the propellers. Then they decided to make them collapsible and take them outside. But such screws simply would not fit in the tunnels of the bottom of the tank. They said that it is necessary to increase the diameter of the propellers up to 600 mm. There, due to the current, the speed could become very low, or even negative.
At the same time, rivers had to be overcome. If the creators counted on 15 km / h, then it was only 7. In addition, the speed on the water was far from the calculated one. But if this problem was somehow solved by temporarily installing those same removable floats on the stern, and sheets of steel were welded in front, then the lack of lateral stability and low buoyancy could not be corrected. The weight distribution of the car was calculated incorrectly, because of which the tank dived strongly astern. The first tests showed that the tank was not only unable to perform combat missions, but could not even swim normally. Now he had to stay on the water only due to his own buoyancy. This greatly changed the technical characteristics of the tank. This is the version that we have almost always had and it has not changed between versions of the game. It is the same Spidermonkey version (1.8.5 - March 2011) that Firefox 4 shipped with many years ago, but it is a special build for Oolite. Understanding this, the decision was made in the USSR Ministry of Transport Engineering to abandon mounted floats. Specifically oolite.jsVersion 185, an Oolite specific variant of ECMAv5. In addition, the installation of the floats itself was accompanied by great difficulties, and in combat conditions, under fire, air raid, or, if necessary, a lightning throw became impossible. This was a very strange decision, since it was planned that the floats would be transported to the crossing point by off-road trucks behind the tanks. buoyancy collected by special floats made of aluminum alloy filled with light filler.
In 1947, they began to develop a light amphibious tank, which received the unofficial name PT-20, and a floating armored personnel carrier based on it
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