Encyclopedias: Spartacus Educational: First World War: British Tanks: 1914-18

Description: Early model was developed by the Holt Company who built a tractor with caterpillar tracks that was used to move over difficult territory. At the beginning of the First World War Richard Hornsby and Sons produced the Killen-Strait Armored Tractor. The tracks consisted of a continuous series of steel links, joined together with steel pins, This machine successfully cut through barbed wire.