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The Tatra T11[1] is an automobile that was produced from 1923 through 1927. It was the first Tatra model to use the unique combination of major components that are still in use on the trucks produced by Tatra to this day.[clarification needed]

Origins

Hans Ledwinka created the design of the T11 while working for Steyr in Austria. He believed there was a need for a small car, and carried out the work in his own time. His design offered to the Steyr management was rejected. He left the company soon after to work for a previous employer, Nesseldorfer, in Moravia, which was soon to become Tatra. This was in 1921 and the development of the T11 started soon after. The T11 was produced between 1923 and 1927 with 3,847 examples made. It was then replaced by the T12, a development of the T11 design, with 7,222 being produced by 1936 when it was discontinued.

Specifications

The Tatra T11 had its engine and gearbox in unit, bolted to the front of a tubular backbone with an integral propeller shaft that also served as the chassis. Bolted to the rear of the backbone is a final drive unit that, using an assembly of gears, not only changes the direction and speed of the drive, but facilitates the movement of swing axles without the need for flexible drive joints.

The T11's engine was an air-cooled horizontally opposed twin cylinder engine with overhead valves. It had a capacity of 1,057 cc (64.5 cu in) and was located above the front beam axle which was attached to it by a transverse elliptical leaf spring.

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