GE Dash 8-40CW
Conrail 6114, a Dash 8-40CW, leads a train westbound out of Altoona, Pennsylvania in 1993.
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| Type and origin | |
|---|---|
| Power type | Diesel-electric |
| Builder | GE Transportation Systems |
| Model | C40-8W |
| Build date | 1989 – 1994 |
| Specifications | |
|---|---|
| AAR wheel arr. | C-C |
| Gauge | 4 ft 8 1⁄2 in (1,435 mm) standard gauge |
| Driver dia. | 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 cap | 410 US gal (1,600 l; 340 imp gal) |
| Coolant cap | 380 US gal (1,400 l; 320 imp gal) |
| Prime mover | GE 7FDL16 |
| Engine type | V16 diesel |
| Alternator | GE GMG187 |
| Traction motors | 6x GE 752AG or 752AH |
| Cylinders | 16 |
| Performance figures | |
|---|---|
| Maximum 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) |
| Career | |
|---|---|
| Operators | See table |
| Locale | North America |
The GE C40-8W is a 6-axle diesel-electric locomotive built by GE Transportation Systems from 1990 to 1994. It is part of the GE Dash 8 Series of freight locomotives.
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.
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.
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 six 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).
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