The truth is that there is no free lunch. A Diesel Electric locomotive is powered by Diesel fuel. Its efficiency is degraded by the generator and motors (with about 80% efficiency each). The Diesel would have higher fuel efficiency if it was connected to the wheels with a gear set, instead of the Gen/Motor set. But there is the issue of getting the massive power (6000HP (Diesel)in a General Electric Dash-9 CW44) to a movable set of wheels. An automatic would do it but they have mediocre efficiency as well. The energy to move the freight comes from good old Diesel oil the compromise is made to use a generator and motors to allow dynamic braking (retarder system with massive resistors to dissipate the heat) and smooth starts. With respect, Jim
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Today's Featured Article - Usin Your Implements: Bucket Loader - by Curtis Von Fange. Introduction: Dad was raised during the depression years of the thirties. As a kid he worked part time on a farm in Kansas doing many of the manual chores. Some of the more successful farmers of that day had a new time saving device called a tractor. It increased the farm productivity and, in general, made life easier because more work could be done with this 'mechanical beast'. My dad dreamed that some day he would have his own tractor with every implement he could get. When he rea
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