Posted by Bill in NC on February 15, 2008 at 06:32:02 from (24.172.3.146):
I came across a factoid on an engineering calendar that said: "1932 (year) Rubber wheels result in a 25 percent improvement in fuel economy for tractors". Is that true? Would a rubber wheeled Farmall H have 25% better fuel economy than a steel wheeled H?
If so, then rubber wheels were a big improvement for our farming grand fathers back during the Depression (assuming they could scrape up the coins to convert to rubber tires during those tough times).
On a similar note, I was reading a magazine last fall that spoke of Michelin having a new rubber compound and radial combination that is showing 7 to 10% fuel mileage improvements on their test tracks. I am just flat amazed at how folks continue to make things run on less fuel.
Anyway, back to the steel versus rubber question, a 25% improvement, do you think it would be that much?
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Today's Featured Article - History of the Nuffield Tractor: Conclusion - by Anthony West. In the last piece I mentioned that Nuffield had reached the stage where they had chosen to drop the "Universal" from production. The two new models were given three figure numbers, instead of "three" and "four". Model numbers were introduced to help farmers and dealers instantly recognize the engine size and horsepower of the tractor, the 4/60 had a four cylinder diesel engine which developed 60 bhp at 2,000 rpm. The 3/42 had a 3 cylinder diesel engine which produced 42 bhp at 2,000 rpm. Th
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