The EMD SD50 is a diesel-electric locomotive built by Electro-Motive Division (EMD) from 1978 to 1989. It features a powerful 3,500 horsepower engine and is designed for heavy freight service. The SD50 is known for its distinctive long hood and wide cab, providing improved visibility for engineers. This locomotive is part of the SD series, which includes various models used by many North American railroads. The SD50 was popular for its reliability and performance, making it a common sight on freight trains across the United States and Canada during its operational years.