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Tatra 12 is a model of vintage automobile made by Czech manufacturer Tatra. It was manufactured between 1923 and 1926. It was replaced by the Tatra 57 in 1932. All Czech car manufacturers were making large and expensive cars at the beginning of the 1920s, which only the rich could afford. Some companies tried to introduce an inexpensive design, which would be affordable for the middle class. Tatra's solution to this was the Tatra 11 of which the Tatra 12 is successor. == Design == Hans Ledwinka, Tatra's designer, came up with a revolutionary idea of a backbone tube chassis, which he introduced on Tatra 11. Tatra 12 follows the same principles with the backbone tube, which has mounted the differential with swing half-axles at the rear. The gearbox has 4 speeds (+reverse) and the engine is on the top of it, while both are mounted on the front of the backbone tube. The engine is a petrol flat two cylinder which is cooled by onslaught air. Thanks to this the expensive and heavy radiators could be avoided - this was an excellent idea at the time, when antifreeze was rather problematic. The front axle has suspension by transverse leaf springs. While Tatra 11 had drum brakes only on the rear wheels, Tatra 12 had drum brakes all around. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Tatra 12」の詳細全文を読む スポンサード リンク
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