. . . "The EMD SD50 is a 3,500-horsepower (2,610 kW) diesel-electric locomotive built by General Motors Electro-Motive Division. It was introduced in May 1981 as part of EMD's \"50 Series\", but prototype SD50S locomotives were built from 1980; production ceased in January 1986. The SD50 was in many respects a transitional model between EMD's Dash 2 series which was produced throughout the 1970s and the microprocessor-equipped SD60 and SD70 locomotives."@en . "427"^^ . . "21.6408"^^ . . "16"^^ . "EMD SD50"@en . "1980Z"^^ . "1987Z"^^ . .