GP18 - MagnumMacKivler/RLCPT2 GitHub Wiki
Aberdeen and Rockfish's sole GP18 sits at the EMD factory in McCook, Illinois in August, 1963. EMD photo, Aberdeen and Rockfish Collection
The EMD GP18 was an improved version of the GP9, utilizing a 16 cylinder 567D1 engine rated at 1800 horsepower. The GP18 was released concurrently to the GP20, establishing the concept of cataloging a turbocharged and roots-blown version of essentially the same locomotive, a practice which EMD continued for over 10 years.
Production ran from December of 1959 to November of 1963, with 405 units produced. An oddball group among this number was 100 of Missouri Pacific's units, which rode on AAR Type B trucks from traded-in ALCO FA-1, and FA-2 locomotives.
An MP GP18 with AAR Type B trucks, unknown photographer
PT-Specific Information
| General Info | - |
|---|---|
| Prime Mover | EMD 16-567D1 |
| Horsepower | 1800 |
| Truck Type | EMD "Blomberg" B (1) |
| Axles | 4 |
| Traction Motors | 4 |
| Minimum Weight | 240,000 lbs |
| Maximum Weight | 260,000 lbs ⚠ |
| Model Base Speed | 55 MPH (1) |
| Top Speed | 55, 65, 71, 77, 83, or 89 (1) |
| Electrical System | - |
|---|---|
| Generator Max Current | 3000 Amps |
| Max Traction Motor (TM) Current | 1500 Amps |
| Max Continuous TM Current | 900 Amps |
| Traction Motor Type | DC |
| Factor of Adhesion | 25% |
| Transition Mode | Automatic with Selector |
| Transition Groups | 2, 2, 1, 1 |
| Transition Shunts | 1, 0.75, 1, 0.75 |