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PRR 4876
PRR 4876 is a GG1-class electric locomotive located at the B&O Railroad Museum in Baltimore, Maryland, United States. It was built in 1939 and was involved in the only accident to befall a GG1. In 1953, the locomotive overran the buffer stop and crashed into Union Station in Washington, D.C. after its brakes failed. A temporary concourse floor was erected over 4876 (which had broken through the original) for the upcoming inauguration of Dwight D. Eisenhower. After the inauguration it was shipped back to Altoona, Pennsylvania, for repairs and placed back into service.
== Background ==
The GG1 was developed in the 1930s by General Electric as the replacement for the Pennsylvania Railroad's then standard electric locomotive, the P5a, and was based largely on the New Haven EP3.〔Bezilla 1980, p. 141–142.〕 The GG1 was capable of a top speed of , powered by its twelve traction motors. The prototype GG1, PRR 4800, was tested against Westinghouse's submission, the R1. The Pennsylvania selected the GG1 over the R1, as the R1 was not articulated and the GG1's traction motors were similar to ones already in use.〔Bezilla 1980, p. 145.〕 An order for the first 57 of a total 139 GG1s was placed in November 1934, with delivery starting in April 1935.〔〔Bezilla 1980, p. 147.〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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