Description
During the 1970's, EMD was turning out a very successful and reliable Dash-2 line (GP38-2, GP40-2, SD40-2). General Electric, in an effort to gain lost ground, introduced an improved Dash-7 line which proved to be a huge improvement over the earlier U-Boats. Between 1977 and 1979, Conrail purchased 141 of the twelve-cylinder 2,250hp B23-7's.
In 1999, the fleet was divided between Norfolk Southern and CSX. Those assigned to NS were renumbered into the 4024-4091 series, while CSX allocated units became 3144-3189.
In 1999, the fleet was divided between Norfolk Southern and CSX. Those assigned to NS were renumbered into the 4024-4091 series, while CSX allocated units became 3144-3189.
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