There are two components to transferring engine horsepower to the drawbar - pulling force and speed. The modern high horsepower, relatively lightweight tractors are designed to work with drawbar loads at 6 to 8 mph whereas years ago the typical field speeds would have been maybe 5 mph at most. The large tires and suspension on the front axle and cabs that modern tractors have makes the higher speeds comfortable for the operator and most modern implements are designed for these speeds. The advantage of utilizing the engine power through increased speed instead of increased drawbar pull is that less weight is needed for traction. This means that less of the engine's power is needed simply move the tractor which makes more available for doing work which in turn leads to greater efficiency. It is the exact opposite of the large, heavy tractors and steam engines of 100 years ago that crept along at 2 mph while getting only maybe half of the engine's power to the ground.
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Today's Featured Article - Show Coverage: Journey to Ankeny - by Cindy Ladage. We left Illinois on the first day of July and headed north and west for Ankeny, Iowa. Minus two kids, we traveled light with only the youngest in tow. As long as a pool was at the end of our destination she was easy to please unlike the other two who have a multitude of requirements to travel with mom and dad. Amana Colonies served as a respite where we ate a family style lunch that sustained us with more food than could reasonably fit into our ample physiques. The show at Ankeny
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