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COWCATCHER MAGAZINE

Amtrak to purchase 75 Tier 4 locomotives from Siemens Mobility in effort to replace aging fleet

January 14, 2019 / Updated June 26, 2023

Class 1 Railroads

Amtrak will acquire new mainline passenger diesel locomotives from Siemens Mobility to replace its aging National Network locomotive fleet.

Seventy-five Charger locomotives are being built for Amtrak’s Long Distance train service as part of an $850 million order that includes options to purchase more to accommodate use on some state-supported routes and future growth.

An artist’s rendering of the Siemens Mobility Charger locomotive that Amtrak has ordered to replace its aging fleet of P40 and P42 diesels. – Courtesy Siemens Mobility

“These new locomotives will offer increased reliability, more hauling power, improved safety features and lower emissions,” said Amtrak President & CEO Richard Anderson in December.

The locomotives will offer the latest safety systems including Crash Energy Management and Positive Train Control. Capable of speeds up to 125 mph, the locomotives will be powered by a 16-cylinder Cummins QSK95 diesel engine capable of 4,000 horse power with modern control systems and Alternating Current (AC) propulsion. The diesel engine will come equipped with the latest Tier 4 emissions technology, reducing nitrogen oxide by over 89 percent and particulate matter by 95 percent, and provide an average of 10 percent savings in diesel fuel consumption.

Delivery will begin in summer 2021, with passenger service beginning in fall 2021. The locomotives will power trains used on the Auto Train, California Zephyr, Capitol Limited, Cardinal, City of New Orleans, Coast Starlight, Crescent, Empire Builder, Lake Shore Limited, Palmetto, Silver Meteor, Silver Star, Southwest Chief, Sunset Limited and Texas Eagle. All locomotives are expected to be in service by 2024. Maintenance activities across the network will be supported by a supplemental multiyear Technical Support Spares Supply Agreement (TSSSA).

The locomotives will be built at Siemens Mobility’s rail manufacturing plant in Sacramento, CA, a facility which uses solar power and employs more than 1,300 people. Available funding will pay for the new additions.

Siemens Mobility’s Charger locomotives are currently operating on several state-supported Amtrak routes in California, Illinois, Wisconsin, Missouri, Michigan, and Washington.

Amtrak’s aging Amtrak P40 and P42 locomotives, some of which have been in service for more than 25 years, will be phased out.

The new locomotives are part of Amtrak’s long-term plans for improving fleet, infrastructure and stations. New Acela trainsets arrive in 2021 and ongoing improvements continue at New York Penn Station and new construction at Moynihan Train Hall, in addition to expanded development of the major stations at Chicago, Washington, D.C., Baltimore and Philadelphia.

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Throttling Up

Ever wonder why railroads chose certain locomotives to pull freight trains? Railroads have practiced multiple-unit train control since the 1890s when Frank J. Sprague developed a system to combine motive power in electric train operation. When assigning power and consisting locomotives today, railroads generally match the horsepower per ton and tractive effort ratings to specific locomotives designed to meet specific network needs. But other factors are involved, and it's not uncommon for railroads to mix makes and models of locomotives when consisting for trains.

State of Model Railroading

Response to the Cowcatcher’s 2025 State of Model Railroading survey was positive and many say the hobby is rolling along fine, maybe a bit complicated for some. The 31-question survey sent to readers across the U.S. in November earned a 42 percent response rate. Questions ranged from personal preferences and skill levels and layouts to how modelers buy and spend.

Joint Agency

Whether shuttling power, moving cars through interline carrier agreements or running on joint lines, North America’s largest rail providers interact. One of the more obscure examples is the Milwaukee Road’s Joint Agency Yard in Kansas City, MO, where the Milwaukee Road and Kansas City Southern coexisted for 40 years. On the N-scale Whitehurst & Pine Ridge Railroad, joint yard agreements in Kansas City and Dallas make sense, allowing KCS traffic to move in and out of both ends of the layout to service grain customers without the need for another yard.

Plus

BNSF posts record agricultural volumes on the heels of a good harvest. A Milwaukee Road stock car with a storied past is now on display at the Galveston Railroad Museum. And a United Kingdom retailer and manufacturer introduces its camera car, the Eye-Choo, to the U.S. And more!