GE Dash 9-44CW

GE Dash 9-44CW
Name	GE Dash 9-44CW
Powertype	Diesel-electric
Builder	GE Transportation Systems
Buildmodel	Dash 9-44CW
Builddate	1993–2004
Totalproduction	1,160
Aarwheels	C-C
Length	73 ft 6 in (22.4 m)
Locoweight	404,000 lb (183,300 kg)
Fuelcap	5,000 US gal (18,927 L)
Engine	GE 7FDL16
Poweroutput	4,400 hp (3,281 kW)

GE Dash 9-44CW

The GE Dash 9-44CW is a heavy-duty diesel-electric freight locomotive built by GE Transportation Systems primarily for North American Class I railroads. It entered service in the 1990s amid a competitive market featuring builders such as General Motors Electro-Motive Division, Bombardier Transportation, Alstom, Siemens and Mitsubishi Heavy Industries. Operators included Union Pacific Railroad, CSX Transportation, BNSF Railway, Norfolk Southern Railway, and Canadian National Railway, reflecting adoption across large carriers and shortlines.

Design and Development

GE developed the Dash 9-44CW as part of the Dash 9 series to compete with models like the EMD SD70 and successors from Bombardier. Drawing on experience from earlier GE products such as the Dash 8 and Dash 7 series, the design incorporated the 16-cylinder GE 7FDL engine and a microprocessor-based control system descended from projects with Amtrak and Conrail. The locomotive used a six-axle C-C truck arrangement with traction hardware related to research conducted with Rockwell International and Wabtec Corporation subsidiaries. Cab ergonomics and crashworthiness reflected contemporary regulations influenced by conversations with agencies including the Federal Railroad Administration and industry groups like the Association of American Railroads.

Specifications

Key specifications include a 4,400 horsepower prime mover from the GE 7FDL16 family, a 73 ft 6 in carbody length, and a fuel capacity suitable for long-haul routes used by carriers such as Union Pacific Railroad and BNSF Railway. The electrical transmission used a generator and traction motors drawing on technology developed alongside contractors like Siemens Energy and ABB Group affiliates. Brake systems met standards promulgated by Federal Railroad Administration guidance and interoperated with braking equipment familiar to fleets operating on corridors shared with Amtrak and Conrail trackage. Safety and diagnostics were enhanced by on-board microprocessors using software practices similar to systems in NASA instrumentation and industrial controls found in Siemens plants.

Production and Variants

Production ran from 1993 to 2004 at GE facilities with a total count around 1,160 units delivered to railroads such as CSX Transportation, Kansas City Southern Railway, Canadian National Railway, Kansas City Southern de Mexico, and Norfolk Southern Railway. Variants and related models include the Dash 9-40CW, experimental prototypes tied to research initiatives with University of Illinois Urbana-Champaign and procurement trials involving Conrail and Union Pacific Railroad. Some units received retrofits—traction control, emissions upgrades, and cab enhancements—similar to programs conducted by Progress Rail Services and maintenance regimes used by BNSF Railway shops. Leasing companies like GATX and Progress Rail Leasing handled several units in secondary markets.

Operational History

The Dash 9-44CW entered service during a period of consolidation involving carriers such as CN and CP Rail in Canada and CSX and Norfolk Southern in the United States. They operated on mainlines interchanging with Amtrak passenger services on shared corridors and worked heavy manifest freights on transcontinental routes spanning corridors used by Union Pacific Railroad and BNSF Railway. Performance and reliability metrics were reported in industry forums like the Railway Age conferences and influenced locomotive procurement decisions at entities including Kansas City Southern and Canadian Pacific Railway. Units were commonly seen on grain, coal, intermodal, and merchandise trains servicing terminals in gateways such as Chicago, Los Angeles Union Station corridors, and Houston freight yards.

Notable Accidents and Incidents

Several high-profile incidents involved Dash 9-44CW units, with reports filed to the National Transportation Safety Board and investigated in coordination with the Federal Railroad Administration and local authorities such as the Los Angeles Police Department or Chicago Police Department depending on location. Accidents included derailments on mainlines shared with Amtrak and freight operators, collisions at grade crossings with oversight from agencies like the Federal Highway Administration, and mechanical failures that prompted inspections influenced by standards from the American Association of Railroads. These events led to safety reviews similar to recommendations arising from investigations of incidents involving other classes like EMD SD40-2 and GE AC4400CW.

Preservation and Museum Units

A limited number of Dash 9-44CW locomotives have been preserved by museums and heritage organizations including institutions akin to the Illinois Railway Museum, Colorado Railroad Museum, and regional heritage groups associated with former owners such as Illinois Central and Southern Pacific (company). Preservation work often involves collaboration with restoration specialists and volunteers who have experience with equipment conserved at entities like the National Railroad Museum and educational partnerships with universities such as Michigan Technological University that run rail technology programs. Units displayed in exhibits are occasionally used for static interpretation of late-20th-century diesel technology alongside rolling stock from eras represented by Pennsylvania Railroad and Baltimore and Ohio Railroad collections.

Category:Diesel-electric locomotives