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Re: making smaller tractors with more h.p these d
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Posted by Paul in Mich on July 20, 2004 at 19:02:24 from (68.188.227.110):
In Reply to: making smaller tractors with more h.p these days. posted by Farmallkid on July 20, 2004 at 11:17:26:
Farmallkid, many if not most of the new tractor manufacturers rate HP as raw HP direct from the flywheel without any drag. What is not considered is that it takes X amount of HP to propel the tractor, X amount to operate the alternator, X amount to operate the hydraulic system, X amount to drive the power steering unit. Older tractors were rated by drawbar HP, and belt HP which was slightly higher because the amount of HP to propel the tractor itself wasnt factored in to belt HP. My opinion is that even if they rated the new tractors HP, using the same criteria as the older ones that they would still come up short. Plus, the newer ones operate at twice the RPM's as the older ones. Lets see them run at 1,500 or 1,800 RPM's and see how much they will pull. Its like measuring watts in a stereo. 100 watts running through one channel is much different than 100 watts running through 4 channels. The best you get in that case is 25 watts per channel. Marketing specialists will always fudge figures in favor of the the highest figure they can get away with, and its up to the buyer to figure it all out.
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