Horsepower is defined as the pull required to move the load multiplied by the speed at which the load is being moved. So, for the same horsepower (same motor), if the speed is reduced, the pulling capability is increased proportionately. So, for example, if the ground speed is reduced by half by changing gearing, the pull is doubled, assuming that the traction is sufficient to support it.
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Today's Featured Article - Tractor Profile: Earthmaster - by Staff. This tractor, manufactured by the Earthmaster Farm Equipment company in Burbank, California was made for only two years. The Model C came out in 1948 and was followed by the "CN" (narrow-width model), "CNH (narrow-width high-crop model), "CH" (high-crop), "D" and the "DH" (high-crop) in 1949. The main difference between the models was tire size, tractor width and cultivating height. The "D" series were about 20 inches wider overall than the
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