| GE Dash 8-40CW | |
|---|---|
| Conrail 6114, a Dash 8-40CW, leads a train westbound out of Altoona, Pennsylvania in 1993. | |
| Power type | Diesel-electric |
| Builder | GE Transportation Systems |
| Model | Dash 8-40CW |
| Build date | 1989 – 1994 |
| AAR wheel arr. | C-C |
| Gauge | 4 ft 8 1⁄2 in (1,435 mm) |
| Driver diameter | 40 in (1.02 m) |
| 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) |
| Coolant capacity | 380 US gal (1,400 l; 320 imp gal) |
| Prime mover | GE 7FDL |
| Alternator | GE GMG187 |
| 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) |
| Tractive effort | 108,600 lbf (483 kN) |
A GE Dash 8-40CW is a 6-axle diesel locomotive built by GE Transportation Systems from 1990 to 1994. It is distinguished from the Dash 8-40C by the addition of a "wide" or "safety" cab. This locomotive model is sometimes referred to as a C40-8W. A cowl-bodied version of this locomotive, built only for the Canadian market, was the GE Dash 8-40CM.
The first Dash 8-40CW was delivered to the Union Pacific railroad in 1990. In total, GE would build 756 Dash 8-40CWs. The Dash 8-40CW was succeeded by the Dash 9-44CW in 1994. 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.
Contents |
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 (1,000 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 (also known as the 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.
| Railroad | Quantity | Road numbers | Notes |
|---|---|---|---|
| Atchison, Topeka and Santa Fe Railway | 152 | 800-951 | 927-951 are model C41-8W |
| Conrail | 216 | 6050-6265 | |
| CSX Transportation | 268 | 7650-7917 | |
| Locomotive Management Services (LMSX) | 60 | 700-759 | Conrail lease units |
| Union Pacific Railroad | 204 | 9356-9559 | 9481-9559 are model C41-8W |
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