Posted by Maddie Farnsworth on March 7, 2015  They bought bidirectional locomotives just to stick one on each end of a train? Posted by Greg Grice on March 7, 2015  Its a test train. Instead of testing only one locomotive, 2 birds were killed with one stone. 630 was tested during the eastbound run WAS-BOS, 629 was tested on the westbound run BOS-WAS. The eastbound run also allowed for testing of communication between the two locomotives.

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