Re: At what RPM is peak efficiency (torque) for M?

Posted by CNKS on May 27, 2007 at 15:00:19 from (204.249.178.32):

In Reply to: Re: At what RPM is peak efficiency (torque) for M? posted by agpilot on May 27, 2007 at 10:58:34:

I think my point is, that those are not "modern" engines and most farmers, at least for tillage loaded them to the gills, as our H was -- therefore we had to use WOT to pull anything. And for what it's worth, my college machinery professor in the 50's, said to use WOT, we were always donated an IH tractor for that class. Aircraft engines are NOT the same -- I was a flight mechanic on the old C 54's in the early 60's. Sat between the pilot and copilot and did the prop and throttle settings during cruise -- none of my business during takeoff, we would crash with me working them. Max power only during takeoff, less than that during most climbs -- not the same thing as an old tractor engine. Torque and HP are both important, but those old tractors were run wide open except for cultivating, regardless of load.

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