Rubber Track Revolution, The (DVD) : Chris Lockwood

This programme charts the development of rubber-tracked crawlers including models from Case IH, Cat, Challenger, Claas, John Deere and Morooka. They were filmed on British farms in 2010-11 subsoiling, ploughing, cultivating, discing, pressing and drilling.

Crawler tractors have always been a favourite for demanding tillage jobs, but it wasn't until the advent of rubber tracks that they became the true all-round machines of today.

Rubber-track crawlers combine the traction and low ground pressure of steel-track machines with the mobility of four-wheel-drive tractors. From the early 1990s numbers have been steadily increasing on British farms as they have become more refined and pushed the power limits ever higher.

Computerisation has brought things up to date, and the main manufacturers offer rubber-tracked crawlers as the flagship machines in their ranges with engine outputs exceeding 600hp.

The models shown are: Case IH Quadtrac 430 Case IH Quadtrac 530 Case IH Quadtrac 9380 Case IH Quadtrac STX450 Cat Challenger 55 Cat Challenger 65 Cat Challenger 75D Cat Challenger 85D Cat Challenger MT865 Challenger MT765 Challenger MT765B Challenger MT765C Challenger MT865B Challenger MT865C Claas Challenger 55 Claas Challenger 85E Claas Challenger 95E John Deere 8410T John Deere 8420T John Deere 8345RT John Deere 9320T John Deere 9630T Morooka MK-160 Morooka MK-220S Track Marshall TM200