For the information of others, the MRS-14 was the equivilent of the Cat DW-10 and the MRS-18 was the equivilent of the Cat DW-15. After these models, MRS changed its design and went to four wheel drive tractors and used a unique weight transfer system from the scraper to the tractor. At one time during the 60's MRS built the largest production tractor/scraper in the world for use in strip mines. After the DW-15 Cat also changed their design and went to two wheel tractors which put all of the tractor weight on the drive wheels. The DW-21 was the first Cat two wheel tractor model.
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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
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