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SD70MAC Question

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  • Member since
    July 2006
  • From: Colorful Colorado
  • 191 posts
SD70MAC Question
Posted by bb4884 on Saturday, June 9, 2007 3:18 PM
How many tons can a single unit pull on strait and level track?
  • Member since
    December 2001
  • 400 posts
Posted by rrboomer on Saturday, June 9, 2007 8:25 PM
At least 13,876 tons.
  • Member since
    March 2016
  • From: Burbank IL (near Clearing)
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Posted by CSSHEGEWISCH on Sunday, June 10, 2007 10:20 AM

 rrboomer wrote:
At least 13,876 tons.

but not much faster than a walk.

The daily commute is part of everyday life but I get two rides a day out of it. Paul
  • Member since
    July 2003
  • From: Elmwood Park, NJ
  • 2,385 posts
Posted by trainfan1221 on Monday, June 11, 2007 6:15 PM
According to a book I have, most locomotives, it used a GP40 for an example, can pull that.  Yeah it won't be fast, and the main thing is it has to be able to start it first.
  • Member since
    July 2006
  • From: Colorful Colorado
  • 191 posts
Posted by bb4884 on Tuesday, June 12, 2007 8:21 PM
While diging for info I found out tests at the Transportation Test Center at Pueblo, Colo., indicated what the SD70MAC could do. A single unit, working on a 1% grade and a 1.5-degree curve pulled (at 40% adhesion) and restarted (at 45% adhesion) a 7,000-ton train under various rail conditions that included continuous water spray, intermittent oil and soap application, and the heavy rain that occasionally hits Pueblo. On dry rail, one SD70MAC pulled (at 42% adhesion) and restarted (at 45% adhesion) a 7,600-ton train.

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