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4 x John Doe Fordson Super Majors having fun, demonstration rather than competition. During the 1950s farmers in the United Kingdom in need of high-power tractors had few options. Essex farmer George Pryor developed an ingenious solution to the problem by creating his own tractor. He did this by purchasing two Fordson tractors, removing the front wheels and axles and linking the two by means of a turntable which provided the steering action powered by hydraulic rams. This left him with a double-engined four-wheel—drive tractor capable of producing more power and outperforming any of the conventional tractors on the UK market at the time. Local Fordson dealers Ernest Doe & Sons agreed to build an improved version, the first one was completed in 1958 and called the Doe Dual Power, later changed to Doe Dual Drive and abbreviated to Triple-D. The vast majority of Triple-Ds were sold in the UK, but a number were exported to the United States and elsewhere.,医学部受験生を応援します! 当サイトは医師を目指す医学部受験生のための「医学部受験生のための情報サイト」の姉妹サイトです。

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