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AR15.COM
10/6/2015 6:29:56 AM EDT
Something I"ve long been curious about.  Every time I drive back to North Dakota from Minnesota and take US 10, I see quite a number of oil trains.  Each of these trains has either a boxcar or grain hopper car between the leading locomotives and the lengthy line of oil tanker cars being pulled.  Does anybody know why this is?
10/6/2015 9:54:48 AM EDT
[#1]
Spacer so you don't have an oil car behind the loco's.
12/31/2015 7:52:19 PM EDT
[#2]
It's a buffer car.  From what I understand it separates the loco and crew from the hazardous material.  They are filled with inert material and act as a deflector in case of a derailment to shunt the tankers away from the locos in the case of a stack up.