EMD AEM-7
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The EMD AEM-7 is a twin-cab four-axle 7,000 hp (5.2 MW) B-B electric locomotive built by Electro-Motive Division (EMD) and ASEA between 1978 and 1988. The locomotive is a derivative of the Swedish SJ Rc4 designed for passenger service in the United States. The primary customer was Amtrak, which bought 54 for use on the Northeast Corridor and Keystone Corridor. Two commuter operators, MARC and SEPTA, also purchased locomotives, for a total of 65.
Amtrak AEM-7 No. 943 with a Metroliner at Seabrook, Maryland, in 1987
Swedish Rc4 imported and repainted in Amtrak's livery for evaluation. This locomotive performed well and would become the basis of the AEM-7.
No. 939 was among the 29 units rebuilt as AEM-7ACs.
Two MARC AEM-7s at BWI Airport in 2012.
Northeast Corridor
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The Northeast Corridor (NEC) is an electrified railroad line in the Northeast megalopolis of the United States. Owned primarily by Amtrak, it runs from Boston in the north to Washington, D.C. in the south, with major stops in Providence, New Haven, Stamford, New York City, Newark, Trenton, Philadelphia, Wilmington, and Baltimore. The NEC closely parallels Interstate 95 for most of its length. Carrying more than 2,200 trains a day, it is the busiest passenger rail line in the United States by ridership and by service frequency.
Amtrak Acela near Old Saybrook, Connecticut
"K" Tower, north of Washington Union Station, is the only remaining interlocking tower on the Northeast Corridor south of Philadelphia
Pennsylvania Railroad's Congressional west of the North River Tunnels on its way to Washington, D.C.
Northeast Corridor Improvement Project track work in April 1979