What is emd sd-40?

The EMD SD-40 is a diesel-electric locomotive that was introduced in 1966 by the Electro-Motive Division (EMD) of General Motors. It is part of the EMD Dash 2 series, which was an upgrade from the original SD40 model. It has a 16-cylinder EMD 645E3 diesel engine that produces 3,000 horsepower and uses a 6,000-volt electrical system for the traction motors. The locomotive is 65 feet long, 10 feet 3 inches tall, and can weigh up to 368,000 pounds. The SD-40 was used primarily in freight service for hauling heavy and long trains all over North America. It remains a popular locomotive in many parts of the world today and has been produced in many variants and sub-series.