I was a design engineer at GM for years and worked with other, older folks who had stories to tell about past projects.
One of my closest friends, elderly but still extant, and the most well respected engineer than I have ever encountered, (from Jackson, MI, I might ad) worked for Delco Products in Dayton, Ohio for many years.
At the time, Delco Products Division designed the traction motors and generators for EMD locomotives (don't know whether Delco or EMD manufactured them). In the early 60s Delco decided to design a push-pull self loading DE scraper using a single 6V71 or 8V71 (or 92 series) in the front driving a DC generator and using an electrical transmission with 250 HP EMD traction motors F $ R (not sure how steering was accommodated). A single prototype was build by modifying a current design twin engine scraper but the design was never commercialized because the end of the interstate highway system was on the horizon and marketing decided that resources could be better spent elsewhere.
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Today's Featured Article - Earthmaster Project Progress Just a little update on my Earthmaster......it's back from the dead! I pulled the head, and soaked the stuck valves with mystery oil overnight, re-installed the head, and bingo, the compression returned. But alas, my carb foiled me again, it would fire a second then flood out. After numerous dead ends for a replacement carb, I went to work fixing mine.I soldered new floats on the float arm, they came from an old motorcycle carb, replaced the packing on the throttle shaft with o-rings, cut new ga
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