You asked about the Deere R diesel tested in 1949. It was very efficient, but the 720 Deere diesel later beat it. Look at these specs as compared to some newer tractors. Keep in mind that many new tractors boast great efficiency at just one peak level. It's really the all-around figures that count, unless you only use a tractor for one specific load and job. Look at these complete figures (not usualy abreviated tests that are often cited). Gives you a much better idea of a tractor that gets used for many different types of work. These older tractor do much better then many of the newer ones.
John Deere R diesel 1949 Test # 406 48.5 horse at 17.3 horsepower hours per gallon 43.5 horse at 17.6 horsepower hours per gallon 33.5 horse at 17 horsepower hours per gallon 26.5 horse at 15.5 horsepower hours per gallon 11.3 horse at 11.1 horsepower hours per gallon 1.6 horse at 2.5 horsepower hours per gallon
John Deere 720 diesel 1956 Test # 594 56.6 horse at 17.9 horsepower hours per gallon 50 horse at 18.3 horsepower hours per gallon 38.7 horse at 18 horsepower hours per gallon 30.5 horse at 16.4 horsepower hours per gallon 26.3 horse at 16.2 horsepower hours per gallon 13.6 horse at 12.1 horsepower hours per gallon 2 horse at 3 horsepower hours per gallon
Kubota L5030 diesel, tested 2006 as thus: 43.5 horsepower at 14.2 horsepower hours per gallon. 30.7 horsepower at 12.9 horsepower hours per gallon. 20.7 horsepower at 10.7 horsepower hours per gallon. 10.4 horsepower at 7 horsepower hours per gallon.
New Holland Boomer TC50 diesel, tested 2008 as thus: 43.6 horsepower at 13.2 horsepower hours per gallon. 28.8horsepower at 13.6 horsepower hours per gallon. 19.4 horsepower at 11.9 horsepower hours per gallon. 9.7 horsepower at 8 horsepower hours per gallon.
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Today's Featured Article - Old Time Threshing - by Anthony West. A lovely harvest evening late September 1947, I was a school boy, like all school boys I loved harvest time. The golden corn ripens well and early, the stoking, stacking,.... the drawing in with the tractors and trailers and a few buck rakes thrown in, and possibly a heavy horse. It would be a great day for the collies and the terrier dogs, rats and mice would be at the bottom of the stacks so the dogs, would have a busy time hunting and killing, all the corn was gathered and ricked in what we c
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