D934

D934 is a diesel-electric locomotive type manufactured by the General Motors Electro-Motive Division (EMD) in the United States. It was introduced in 1953 as a successor to the D933 model, which was itself a development of the D932. The D934 is known for its robust design and reliability, making it a popular choice for freight railroads in North America.

The D934 features a 16-cylinder, 2,000 horsepower (1,500 kW) diesel engine, which is coupled to a pair of traction motors. This configuration allows the locomotive to achieve a top speed of approximately 75 miles per hour (121 km/h). The D934 also includes a dynamic braking system, which helps to improve fuel efficiency and reduce wear on the locomotive's components.

Over the years, the D934 has undergone several modifications and upgrades to improve its performance and reliability. These include changes to the engine, transmission, and electrical systems. Despite these upgrades, the basic design of the D934 remains largely unchanged, making it a classic example of a diesel-electric locomotive.

The D934 has been used extensively by various railroads in North America, including the Union Pacific Railroad, the Burlington Northern Railroad, and the Canadian National Railway. It has also been exported to other countries, including Australia and South Africa. Today, the D934 remains in service with many railroads around the world, continuing to play a vital role in the transportation of goods.