The landscape of American farming changed dramatically between 1850 and 1950 due in large part to the introduction of farm tractors. Initially, tractors used steam engines, until these gave way to internal combustion engines in the twentieth century. The turn-of-the-century steam engine tractor is gigantic and primitive looking, using chains on a rotating shaft to steer. When tractors were introduced, farmers quickly found that engine driven tractors were more economical to use, as compared to keeping animals for tillage, and tractors began selling widely. In many cases agricultural machinery dealers received cattle for the barter for tractors and they and in turn sold the cattle in the meat market. The Farmall is one of early tractors and the most familiar and famous names in tractor history. Tractors were made to be work horses, so niceties were minimal. This included foregoing a fuel gauge. Tractors are most useful for cultivation purposes, so a tractor or tractors have been a must for farm owners, but tractors are also used in excavation, in manufacturing and industry, or on construction sites. Farm size, availability of labor and custom services, crop selection, and cultural practices, such as choice of tillage system, all affect the selection of an optimum equipment set …show more content…
The engine may range from about 12 to 120 horsepower or more and tractors over the years have been typically offered in the range of 20 to 400 horsepower. Engine power is transmitted to a gearbox typically having 4 to10 speeds (these transmissions are manually switched via a control lever to determine how fast the tractor can go) and through the differential gear to the two large rear-drive wheels. Some farm tractors can reach speeds up to 25 miles per hour, but slow speeds are necessary to give the farmer more control while doing field