| Class | UP-1 | ||||
|---|---|---|---|---|---|
| Country | USA | ||||
| Railroad Line | Union Pacific | ||||
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| Wheel Arrangement | (2'Co)(Co'2') hTurb | Boiler Pressure | 105 kp/cm² | ||
| Tender | ---- | Grate Area | m² | ||
| Driving Wheel Ø | 1118 mm | Heating Surface Area |
m² | ||
| Leading Wheel Ø | 914 mm | Superheater Area | m² | ||
| Trailing Wheel Ø | 914 mm | Cylinder Ø | ----- mm | ||
| Length (over all) | 27 686 mm | Piston Stroke | ----- mm | ||
| Max. Speed (Design) | 200 km/h | Max. Axle Loading | Mp | ||
| Max. Speed (achieved) | km/h | Weight on drivers | 152,7 Mp | ||
| Power | 5000 hpi | Weight (total) | 248,6 Mp | ||
| Fuel | Oil | Power Transmission | Electro | ||
| Gauge | 1435 mm | Tractive Effort | 39,2 Mp | ||
| First Bldg. Year | 1939 |
Number built | 2 |
||