GE Evolution Series

The **GE Evolution Series** is a line of diesel locomotives built by GE Transportation Systems (now owned by Wabtec), initially designed to meet the U.S. EPA’s Tier 2 locomotive emissions standards that took effect in 2005. The first pre-production units were built in 2003. The Evolution Series locomotives are equipped with either AC or DC traction motors, depending on the customer’s preference. All are powered by the GE GEVO engine. The Evolution Series was named as one of the “10 Locomotives That Changed Railroading” by Trains Magazine and was the only locomotive series introduced after 1972 to be included in that list. Currently, six different Evolution Series models have been produced for the North American market. They Are All six-axle locomotives and have AAR wheel arrangement C-C (UIC classification Co′Co′), except for the ES44C4 which uses the AAR A1A-A1A wheel arrangement and the meter-gauge version developed for the Brazilian network ES43BBi which is AAR B-B-B-B. The GE Evolution Series locomotives are some of the best-selling and most successful freight locomotives in United States history.

## ES44AC

The **ES44AC** is a type of six-axle, 12-cylinder, 4,400 horsepower diesel locomotive built by GE Transportation Systems from 2004 to present. It is part of the **GE Evolution Series** locomotives and is equipped with a GEVO engine, which is a 4-stroke diesel engine. The ES44AC is designed to meet the U.S. EPA’s Tier 2 locomotive emissions standards that took effect in 2005. The locomotive has a maximum speed of **70 mph** and a fuel capacity of **5,000 US gallons**. The ES44AC is used by several railway operators including Union Pacific, BNSF, CSX, NS, CN, CPKC, KCSM, GECX, FXE, IAIS, SVTX, CREX, and FEC.

## ES40DC

The **ES40DC** is a type of six-axle, 12-cylinder, 4,000 horsepower diesel locomotive built by GE Transportation Systems from 2004 to 2008. It is part of the **GE Evolution Series** locomotives and is equipped with a GEVO engine, which is a 4-stroke diesel engine. The ES40DC was designed to replace the Dash 9-40CW model in the General Electric catalogue and was delivered exclusively to Norfolk Southern Railway. The locomotive has a maximum speed of **70 mph** and a fuel capacity of **5,000 US gallons**.

## ES44DC

The **ES44DC** is a type of six-axle, 12-cylinder, 4,400 horsepower diesel locomotive built by GE Transportation Systems from 2004 to 2010. It is part of the **GE Evolution Series** locomotives and is equipped with a GEVO engine, which is a 4-stroke diesel engine. The ES44DC was designed to replace the Dash 9-44CW model in the General Electric catalogue and was primarily used by BNSF Railway, CSX Transportation, and Canadian National Railway. The locomotive has a maximum speed of **70 mph** and a fuel capacity of **5,000 US gallons**.

## ES44C4

The **ES44C4** is a type of six-axle, A1A-trucked, AC-traction, 4,400hp type of diesel locomotive built by General Electric Transportation Systems. It is the very first A1A-trucked diesel locomotive built in North America since the late-1950’s. The model was designed for the daily grind of main line freight service and is more than 60% heavier than other locomotives. The ES44C4 has two traction motors per truck, instead of the conventional three such as on the ES44AC. The locomotive is capable of producing a continuous tractive effort more than twice that of either an RSC-2 or DRS-6-4-1500.

## ET44AC

The **ET44AC** is a type of six-axle, AC-traction, 4,400hp type of diesel locomotive built by General Electric Transportation Systems. It is part of the Evolution Series line of locomotives and was introduced as a replacement for the ES44AC model. The ET44AC is equipped with advanced cooling, traction control, and fuel efficiency features. It has a maximum speed of **75 mph** and can produce a continuous tractive effort of **166,000 lbf**. The locomotive is used by several Class I railroads in North America, including Union Pacific, CSX Transportation, Norfolk Southern, KCS, and Canadian National Railway.