mkirsch said: (quoted from post at 13:06:48 04/06/12) It would be interesting to perform the same comparison of steel vs. rubber as was done in the 1930's to see if the tire manufacturers have been stringing us along for 80 years...
In 1934 the Allis Chalmers WC was the first tractor to be tested with pneumatic tires by Nebaraska Test (test #223). Actually they did a comparison on the same tractor with both steel and pneumatic tires.
It is all interesting reading, but any way you want to look at it the rubber tires were more fuel efficient on the same drawbar loads by quite a bit - not to mention operator comfort. In my opinion, the fuel savings would even be greater on a more modern tractor as you would have the luxury of more gears to choose from on a modern tractor in order to pull the rubber tired loads much faster. The test in 1934 used the same tranny gear for both tests as that was the rated working gear by the manufacturer (Of course back in the 1930's tractors often only had 2 or 3 gears anyway).
I have never operated a steel wheeled tractor, but I do use a couple of older steel wheeled hay rakes. My fields are realatively smooth, but some of the sounds that rake will make when it hits a bump literally make me cringe - and very thankful my poor body is not being subjected to that same shock load.
This post was edited by rankrank1 at 10:54:20 04/07/12 4 times.
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