GE Dash 8 Series
|
|||||||||||||||||||
|
|||||||||||||||||||
|
|||||||||||||||||||
|
|||||||||||||||||||
|
|||||||||||||||||||
| Type and origin | |
|---|---|
| Power type | Diesel-electric |
| Builder | General Electric Transportation |
| Build date | 1983–1994 |
| Specifications | |
|---|---|
| AAR wheel arr. | B-B (B32-8, B39-8, B40-8, B40-8W) C-C (C32-8, C39-8, C40-8, C40-8M, C40-8W, C41-8W, C44-8W) |
| Gauge |
4 ft 8 1⁄2 in (1,435 mm) 5 ft 3 in (1,600 mm), Brazil |
| Length | 66 ft 4 in (20.22 m) (B40-8W) 70 ft 8 in (21.54 m) (C40-8W) |
| Fuel capacity | 3,150 US gal (11,900 l; 2,620 imp gal) (B40-8W) 4,600 US gal (17,400 l; 3,830 imp gal) (C40-8W) |
| Prime mover | GE 7FDL |
| Engine type | 4-stroke diesel engine |
| Aspiration | Turbocharged |
| Cylinders | V12 or V16 |
| Performance figures | |
|---|---|
| Power output | 3,200 hp (2,390 kW) (B32-8, C32-8) 3,900 hp (2,910 kW) (B39-8, C39-8) 4,000 hp (2,980 kW) (B40-8, B40-8W, C40-8, C40-8M, C40-8W) 4,100 hp (3,060 kW) (C41-8W) 4,400 hp (3,280 kW) (C44-8W) |
| Career | |
|---|---|
| Operators | Various |
| Locale | North America, Brazil |
The Dash 8 Series is a line of diesel-electric freight locomotives built by GE Transportation Systems. It replaced the Dash 7 Series in the mid-1980s, and was superseded by the Dash 9 Series in the mid-1990s.
All models of the Dash 8 Series are powered by a 16- or 12-cylinder, turbocharged, GE 7FDL 4-stroke diesel engine.
The design of the Dash 8 Series is based upon that of the Dash 7 Series. The biggest changes introduced during the production of the Dash 8 Series were the first use of a microprocessor-equipped engine control unit in a diesel locomotive, and the adoption of a modular system in the construction of the vehicle body.
The Dash 8 locomotive bodies were assembled from several modules, creating a combination to fit the length of the chassis. On models with a traditional narrow short hood, the part of the equipment room immediately behind the cab is taller than the top of the rounded cab roof, giving those models a distinctive appearance. On all models, that part of the equipment room houses the cooling fans for the dynamic braking system.
Traction motors of Dash 8 locomotives were powered by direct current.
The Dash 8 prototype was completed in 1984. Manufacture of the improved production units started in earnest in 1987. Early versions of the Dash 8 were manufactured on the Dash 7 production line, but their general appearance was different. The Dash 8-40C, introduced in 1987, featured improved reliability.
The naming of the Dash 8 Series, and that of its various models, corresponded initially with that of its predecessor, the Dash 7. So, for example, "B32-8" designated a B-B configured 3,200 hp (2,390 kW) Dash 8 Series locomotive.
...
Wikipedia