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History: The Evolution Series is a line of diesel locomotives built by GE Transportation Systems, 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. 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 industry publication Trains Magazine. It was the only locomotive introduced after 1972 to be included in that list. The Evolution Series, mainly the ES44DC, ES44AC, and ET44AC, are some of the best-selling and most successful freight locomotives in United States history, far surpassing the output of Electro-Motive Diesel.
The ES44AC (Evolution Series, 4400 HP, AC traction) replaced the AC4400CW model in the General Electric catalogue. The GE Evolution Series ES44AC locomotive represents an incredible combination of power, performance and efficiency. Originally designed to meet US EPA Tier 2 emissions, the ES44AC locomotive utilizes a 12-cylinder GE Evolution Series engine with 4-stroke combustion technology to maintain horsepower, reduce emissions, and lower fuel consumption compared to GE’s predecessor 16-cylinder FDL engine. From 2005 to 2015, the ES44AC became GE’s standard North American locomotive and a compelling platform for others worldwide.
The "H" in ES44AH stands for "heavy", which is in reference to a combination of subsystems that produce high levels of tractive effort at low speeds. UP's "AH" types are similar to CSXT's, except for their Hi-Ad trucks, and are designated C45AH's by Union Pacific.
The ES44C4 (Evolution Series, 4400 HP, AC traction, 4 powered axles) was introduced in 2009. While similar to the ES44AC, the ES44C4 has two traction motors per truck, instead of the conventional three such as on the ES44AC. The center axle of each truck is unpowered, giving an A1A-A1A wheel arrangement. BNSF Railway is the launch customer for this model.
The ES44DC (Evolution Series, 4400 HP, DC traction) replaced the Dash 9-44CW model in the General Electric catalogue. Primary users are BNSF Railway, CSX Transportation, and Canadian National Railway.
The ET44AC (Evolution Series Tier 4, 4400 HP, AC traction) replaces the ES44AC model. The GE Evolution Series ET44AC locomotive meets the U.S. Environmental Protection Agency’s (EPA) stringent Tier 4 emission standards without the use of any aftertreatment, enabling railroads to gain significant savings through urea infrastructure cost avoidance and reduced operational costs. Part of the Ecomagination-certified Evolution Series, the ET44AC locomotive is designed to meet Tier 4 emissions standards by reducing emissions by 70% below Tier 3 requirements. GE Transportation has invested $600M in the Evolution Series since its introduction in 2005 and is the first supplier of Tier 4 locomotives for Class 1 railroads.
Successor of the ES44AH.
Successor of the ES44C4.
From GE transportation website
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Item Links: We found: 1 different collections associated with Rail - Locomotive - Diesel - GEVO
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Item created by: gdm on 2018-01-19 14:38:32. Last edited by Alain LM on 2018-04-21 16:15:32
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