For a 4-wheel tractor, draw a rectangle that indicates the tire contact point of the tires. As long as the center of gravity stays within that rectangle, the tractor will not tip over.
Draw a triangle for a narrow front tractor that includes the point where the tires contact the ground. If the center of gravity moves outside that triangle, the tractor will tip over.
In this situation, the rectangle has more area than the triangle, thus making it less prone to tip over. Moving the wheels further out or adding duals makes the rectangle larger.
Just things to ponder. Needless to say, the vertical point of gravity changes with the height of the tractor and can make certain tractors more prone to tipping over. Guess that's why I like lower utility tractors.
The oscillation of the wide front is usually limited, but until the tractor frame stop contacts the wide front axle, the tractor is a actually a 3-point suspension, when the oscillation limits are reached, it becomes a 4-point suspension.
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Today's Featured Article - An Old-Time Tractor Demonstration - by Kim Pratt. Sam was born in rural Kansas in 1926. His dad was a hard-working farmer and the children worked hard everyday to help ends meet. In the rural area he grew up in, the highlight of the week was Saturday when many people took a break from their work to go to town. It was on one such Saturday in the early 1940's when Sam was 16 years old that he ended up in Dennison, Kansas to watch a demonstration of a new tractor being put on by a local dealer. It was an Allis-Chalmers tractor dealership,
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