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UP Class 4884 "Big Boy" Maximum Cut-Off

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  • Member since
    March 2010
  • From: Fort Hood, TX
  • 28 posts
UP Class 4884 "Big Boy" Maximum Cut-Off
Posted by Burgard540 on Saturday, October 9, 2010 9:23 PM

Does anyone know for certain what the maximum cut-off was for the Big Boys in both forward and reverse (if the figures are different)? I'd assume it would be about the same as Challenger #3985 since they both use the 12" ALCO Type "M" power reverse and had very similiar designs. 

I just revisited #4018 in Dallas, but the cab is locked so I couldn't see the reverse quadrant.  I asked one of the employees, but he didn't have the keys.

Are any of the reverse quadrants clearly visible on any of the Big Boys that are on display?

Thanks - Joe

"If a nation expects to be ignorant and free, it expects what never was and never will be." Thomas Jefferson

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