EMD GP40X
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| Power type | Diesel-electric |
|---|---|
| Builder | General Motors Electro-Motive Division (EMD) |
| Model | GP40X |
| Build date | 1977 – 1978 |
| Total production | 23 |
| AAR wheel arr. | B-B |
| Gauge | 4 ft 8½ in (1435 mm) |
| Prime mover | EMD 645F |
| Cylinders | 16 |
| Power output | 3,500 hp (2.6 MW) |
| Locale | North America |
An EMD GP40X is a 4-axle diesel locomotive built by General Motors Electro-Motive Division between 1977 and 1978. Power for this unit was provided by a turbocharged 16-cylinder EMD 645F (derivative of the EMD 645 series engine) which could produce 3,500 horsepower (2,600 kilowatts). 23 examples of this locomotive were built for North American railroads. This unit was an pre-production version meant to test technologies later incorporated into EMD's 50-series locomotives EMD SD50 and EMD GP50. Half the GP40X were delivered with an experimental HT-B truck design that were not used on the EMD GP50.
The designation GP40X was also given to an experimental EMD GP40 built on an EMD GP35 frame in May 1965. Only one example of this locomotive was ever produced, the EMD 433A, a 3000hp model predecessor to the GP40 series. The 1965 EMD 433A has very little in common with the 1977 GP40X other than flared radiators and a 645-series prime mover.
[edit] External links
- Sarberenyi, Robert. EMD GP40X Original Owners. Retrieved on August 27, 2006
- Thompson, J. David. EMD GP35 Original Owners, GP40 Prototype. Retrieved on August 27, 2006
| 4-axle general purpose diesel locomotives built by GM-EMD |
|---|
| BL2, GP7, GP9, GP15-1, GP15AC, GP15T, GP18, GP20, GP20D, GP28, GP30, GP35, GP38, GP38AC, GP38-2, GP39, GP39DC, GP39X, GP39-2, GP40, GP40P, GP40P-2, GP40TC, GP40X, GP40-2, GP49, GP50, GP59, GP60 |
| (See also: List of GM-EMD locomotives) |
