From what all of you are saying, it sounds like the 25% fuel economy improvement figure is in the ballpark. The steel wheels punched into the ground whereas rubber tires float on the ground with the lugs coming into play when applying pulling power. I've never driven a steel wheeled tractor but could see how steel wheels could pound a man into peeing blood after plowing rough ground day-after-day.
Speaking of pounding, even with rubber tires, tractors can be a rough ride in some fields. Today's big tractors have cushy, shock-absorbing seats to provide a smooth ride. Were there ever any vintage tractors made with springs and shock absorbers? My guess is the springs would hamper getting the power to the ground as they loaded and un-loaded with changing conditions. They would also interfere with load leveling hitches. I may have answered my own question, but was there any that had springs? How about that rare MM tractor/car? It probably had springs, right?
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Today's Featured Article - Experimental Tractors Article - by Danny Bowes (Dsl). Tractor technology appears to have nearly hit it's pinnacle of development. If you agreed with the subtitle, you are rather mistaken. Quite, actually. As a matter of fact, some of the technology experimented with over 40 years ago makes today's tractor technology seem absolutely stale by comparison. Experimentation, from the most complex assembly to the most simple and mundane component, is as an integral a part of any farm tractor's development
... [Read Article]
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