GE Dash 8-40CW
|Builder||GE Transportation Systems|
|Build date||1989 – 1994|
|AAR wheel arr.||C-C|
|Gauge||4 ft 8 1⁄2 in (1,435 mm)|
|Driver diameter||40 in (1,016 mm)|
|Length||70 ft 8 in (21.54 m)|
|Width||10 ft 2 in (3.10 m)|
|Height||15 ft 4 in (4.67 m)|
|Fuel capacity||5,000 US gal (19,000 l; 4,200 imp gal)|
|Lubricant capacity||410 US gal (1,600 l; 340 imp gal)|
|Coolant capacity||380 US gal (1,400 l; 320 imp gal)|
|Prime mover||GE 7FDL|
|Traction motors||6x GE 752AG or 752AH|
|Top speed||70 mph (113 km/h)|
|Power output||4,000 hp (3,000 kW)
some uprated to 4,100 hp (3,100 kW), some uprated to 4,135 HP
|Tractive effort||108,600 lbf (483 kN)|
This locomotive model is often referred to as a Dash 8-40CW, and is distinguished from the Dash 8-40C by the addition of a "wide" or "safety" cab.
Like most GE locomotives, the Dash 8-40CW saw continuous upgrades over the course of its production. Later model Conrail units were built with split cooling systems for the turbocharger intercooler and engine cooling (previous Dash 8 series had both on the same cooling system). The later units delivered to Conrail in 1993 and 1994 were equipped with GE's Integrated Function Displays (IFD). The IFDs are LCD displays that provide the engineer with the same information previously provided by analog gauges, as well as integrating distance counter and End of Train Device telemetry functions.
The Dash 8-40CW is powered by a 4,000-horsepower (3,000 kW) V16 7FDL diesel engine driving a GE GMG187 main alternator. The power generated by the main alternator drives 6 GE 752AG or 752AH Direct Current traction motors, each with a gear ratio of 83:20 and connected to 40-inch (1,016 mm) wheels which allow the Dash 8-40CW a maximum speed of 70 mph (110 km/h).
Depending on customer options, the Dash 8-40CW carries approximately 5000 US gallons (18927 L) of diesel fuel, 410 US gal (1,552 L) of lubricating oil, and 380 gallons (1,438 L) of coolant. Like most North American diesel locomotives, the Dash 8-40CW uses normal water for cooling. The Dash 8-40CW has a maximum tractive effort of 108,600 lbf (483,000 N) at 11 mph (18 km/h) with the 83:20 gearing. Overall dimensions for the Dash 8-40CW are 70 ft 8 in (21.54 m) in Length, 15 ft 4 in (4.67 m) in Height and 10 ft 2 in (3.10 m) in width.
The General Electric Dash 8-41CW or Dash 8-41W (C41-8W) is a variation with the same 16-cylinder engine upgraded to 4,135 hp (3,083 kW). 154 were produced between 1993 and 1994 for both the Union Pacific and Santa Fe (ATSF) railroads, and some Dash 8-40CW units were also uprated to Dash 8-41CW standard by the railroads. Since no 4 axle versions of this unit were built, the "C" designation (indicating a 3-powered axle truck or C-C) is often omitted.
Current and former owners
|Atchison, Topeka and Santa Fe Railway||152||800-951||927-951 are model C41-8W. Passed on to BNSF.|
|BNSF Railway||152||800-951||800-866 sold to CN. 867-951 still on property, but placed in storage.|
|Canadian National||55||2098-2099, 2135-2188||Originally BNSF 800-866|
|Conrail||236||6050-6285||Split between CSX and NS, #6266-6285 are ex-LMSX #740-759|
|CSX Transportation||375||7300-7396, 7650-7917, 7918-7929||Classed as CW40-8. 7300-7396 originally bought by Conrail. 7918-7929 originally bought by LMSX.|
|Illinois Central||11||2455-2466||Bought from LMSX. Conrail Blue paint with CN markings & IC sublettering.|
|Locomotive Management Services (LMSX)||60||700-759||Conrail lease units. Split between CSX, NS, and IC., #740-759 to CONRAIL #6266-6285.|
|Norfolk Southern||154||8314-8467||All units originally Conrail or LMSX.|
|Union Pacific Railroad||204||9356-9559||9481-9559 are model C41-8W|
- Bytown Railway Society (2004). Canadian Trackside Guide.
- General Electric Company (1990). Operating Manual Dash 8-40CW Diesel Electric Locomotives.
- McDonnell, Greg (2008). Locomotives: The Modern Diesel and Electric Reference. Erin, Ontario: Boston Mills Press. ISBN 978-1550464931.
- Solomon, Brian (2003). GE Locomotives: 110 Years of General Electric Motive Power. St. Paul, MN, USA: MBI Publishing. ISBN 9780760313619.
- Solomon, Brian (2010). Modern Locomotives: High Horsepower Diesels 1966–2000. New York: Crestline. ISBN 978-0785826811.