Re: Auto Pilot for M Farmall - Fact or Fiction?

Posted by john d on January 24, 2004 at 19:47:54 from (152.163.252.227):

In Reply to: Auto Pilot for M Farmall - Fact or Fiction? posted by ATR72 on January 23, 2004 at 03:39:30:

Not fiction. At the Indiana State Fair in the late 1950s, you could typically find several of these units on exhibit. Most were farmer-built. As mentioned in some previous posts, a couple of disc blades set at about a 45 degree angle to each other were on a long pipe arm and rigged to follow the furrow and steer the tractor. A kill switch was tripped if the arm raised enough to leave the furrow. Controls for the throttle and clutch were typically run to the back of the plow on the left side. A kill switch was also used in case the plow hit a rock and unhooked from the tractor. These things worked best in large fields with the farmer running another tractor and following. After a couple of laps around the perimiter of the field, and plowing out the corners into a nice smooth curve, the "auto-pilot" tractor was turned loose. Here in central Indiana, the fad only lasted a few years, partly because most fields at that time were 40 acres or less.

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