Thread: Big Boy Runs
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Old 7th May 2019, 01:41
  #19 (permalink)  
Join Date: Dec 2010
Location: Balikpapan, INDONESIA
Age: 67
Posts: 517
Originally Posted by Kiwithrottlejockey View Post
Quote: " But about that diesel hanging off the back .......? "

It's called "Contingency assistance".

It's also about providing dynamic braking on the train. Something steam locomotives don't have.
Nope. That doesn't explain it.
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