Union Pacific Corporation profile

An eastbound Union Pacific auto rack train passes through Lombard, Ill., on Nov. 16, 2019. TRAINS: David Lassen Read more Union Pacific articles on Trains’ website. Union Pacific summary Omaha, Nebraska-based Union Pacific Corporation is a railroad holding company for the Union Pacific Railroad Company (UP). It controls one of the largest railroads in the […]

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Parts of an Electro-Motive Division GP15-1 diesel locomotive

Photo of front of HO scale four-axle hood unit on white background

Parts of an Electro-Motive Division GP15-1 diesel locomotive Electro-Motive Division (EMD) produced the GP15-1 diesel locomotive from June 1976 through March 1982. During that time, 310 units were built. The four-axle road switcher was equipped with a 1,500hp 12-645E diesel engine, a D32 generator, and D77B traction motors. Original owners included Chicago & North Western […]

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Parts of an Electro-Motive Division F40PH diesel locomotive

Photo of front of HO scale cowl-bodied diesel on white background

Parts of an Electro-Motive Division F40PH diesel locomotive The Electro-Motive Division (EMD) F40PH diesel locomotive was the backbone of Amtrak’s fleet for many years. The four-axle unit earned its keep on several commuter lines, too. GO Transit (Toronto), Massachusetts Bay Transportation Authority (Boston), Metra (Chicago), and NJ Transit were just some of the places the […]

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Parts of the Electro-Motive Diesel SD70M-2

white, red, and blue diesel locomotive

Parts of the Electro-Motive Diesel SD70M-2. Today is a great time to be a model railroader. The market is filled with a variety of locomotives from different manufacturers in many popular modeling scales. These engines often feature railroad- (and sometimes road-number-) specific details; factory-installed and painted wire grab irons; and sounds recorded from the prototype. […]

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Diesels That Didn’t – Alco Black Marias

Streamlined diesel locomotive set in front of sanding tower

The Alco Black Marias, a trio of prototype cab units, were the builder’s initial attempt to enter the mainline diesel locomotive market after World War II. The U.S.’s World War II War Production Board closely monitored the railroad locomotive builders and what they could and could not produce. Loosely, EMD was manufacturing mostly road locomotives […]

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How the ‘Golden Spike Centennial Limited’ came to be

End of blue passenger train with sign highlighting railroad spikes

The Golden Spike Centennial Limited was born, in promoter Ross Rowland Jr.’s mind, as a reaction to the Association of American Railroads’ not planning anything special to mark the 100th anniversary of the nation-uniting event on the new transcontinental railroad at Promontory, Utah, in 1869. The apathy was perhaps typical of the Class I railroads […]

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General Electric passenger U-boats — Diesels that didn’t

Three red-and-silver diesel locomotives pull a passenger train through an urban canyon

The General Electric passenger U-boats filled a niche in the 1960’s locomotive market. Santa Fe, like many Class I railroads at the time, was still proud of its passenger service. But its roster of suitable diesel locomotives was getting old and any thought of Amtrak was still years away. Keeping its aging fleet of silver […]

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Canadian Pacific 2816 The Empress steam locomotive profile

Steam locomotive with short passenger train in low angle sunlight.

Introducing The Empress Canadian Pacific 2816 The Empress: Canadian Pacific President and CEO Rob Ritchie set the steam preservation world on its ear when in 1998 he revealed the railway’s plan to repatriate CP H1b Hudson No. 2816 from its long-time home at the National Park Service’s Steamtown museum and rebuild the 1930-vintage locomotive for […]

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Alco C415 failure — Diesels that didn’t

Gray and white diesel locomotive with freight train

Alco C415 failure was not what the famed locomotive maker had in mind in the 1960s. At the time, Alco saw a need to revamp its switcher offerings and came up with the offset centercab configuration C415, which launched as a demonstrator in 1966. The arrangement separated the prime mover from the radiator on different […]

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Pere Marquette 1225 steam locomotive profile

black steam locomotive with large smoke plume on a clear blue sky day

A Pere Marquette 1225 steam locomotive profile is long past due. Not only is it one of the most active mainline steam locomotives of the past 25 years it is also an iconic symbol of steam’s greatest technological leap forward: the development of Super Power technology, introduced in the 1920s by Lima Locomotive Works of […]

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Diesel hydraulics: Diesels that didn’t

Gray and red diesel locomotive pulls stock cars

North American railroads never found a broad use for freight service diesel locomotives with a hydraulic drive, making them another case of the “diesels that didn’t.” Germany was the early leader in developing and building diesel locomotives that utilized direct-drive transmissions. Those early models in the 1930s incorporated torque converters and gears in lieu of […]

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Drawbar vs. horsepower on the railroad: Is there a difference?

Looking down on a coupler connection between cars at speed

A lot happens between the horsepower output of a diesel engine and the drawbar where freight cars are coupled. A diesel engine’s raw output is known as brake horsepower, which is calculated without any additional equipment connected. After deducting those losses, the rest of the engine’s output is sent to the traction motors to pull […]

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