Pierce-Arrow Model X

The Pierce-Arrow Model X was a truck model manufactured by the American firm Pierce-Arrow Motor Car Company from 1913 to 1922. The Pierce-Arrow Model X was used in very large numbers by French and US militaries during the First World War.

Design The Model X was a cab behind engine, rear-wheel drive truck with a payload capacity of . The Model X was available in two chassis lengths, the standard chassis had a wheelbase of and an overall chassis length of , the extra long chassis had a wheelbase of and an overall chassis length of . The bare chassis was in width.

The Model X was powered by a 4-cylinder inline T-head petrol engine with a bore and stroke of , ignition was by magneto, a fuel tank was standard. The truck was driven through a three-speed transmission and the rear axle featured worm final drive. It was fitted with a foot actuated transmission brake and hand actuated rear drum brakes.

History

In 1910 Pierce-Arrow was looking to expand their commercial truck business, and on the advice of a young engineer, Francis W. Davis, the company hired two designers from British truck manufacturers. Upon their arrival H. Kerr Thomas formerly of Hallford and John Younger formerly of Dennis, commenced designing a completely new range of trucks, the first of which was the 5-ton Model R which was introduced in 1911. Following this, in 1913 the company introduced a smaller 2-ton model, the Model X.

During the First World War, large numbers of Model Xs were built, between April 1914 and the time of the Armistice in 1918 7,051 Model Xs were produced. The Model X was purchased in large numbers by the French and US militaries for service during the war, the French purchased 2,100 for military service during the conflict.

Production of the Model X continued through the 1920s with few modifications, by 1921 Pierce-Arrow's total truck sales had dropped to 709 vehicles, and in 1922 the company suspended production of the Model X for newer models.

Pierce-Arrow Model X

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