There really was no inventor of the 6-bottom plow. The six-bottom plow was a modification to the plow (invented by Charles Newbold in 1797) after tractors were invented to pull larger plows.
Approximately 100-120 HP based on the presumption of a modern tractor and soil that is not predominantly clay. Ground that has not been broken for many years will require more effort.
5 bottom
A '37 B can pull a 2-12"bottoms plow.
A John Deere A tractor can pull a 2-14" plow. I wouldn't try this but I have seen some As pulling a 3-12" plow in light soil. Like I said, I wouldn't try it.
hand tractor is use to pull a plow and horrow in preparing a large area of land..
Horsepower is irrelevant - it's torque that matters.
sshi
yes
is used to pull a plow and harrow in preparing a large area of land.
I would say 120 horsepower minimum... I know some people who pull 23 foot disc's with 130 horsepower tractor, but that was on plowed ground... but a 100 horsepower should do the job, at 4-5 mph
is used to pull a plow and harrow in preparing a large area of land.