Lima Locomotive Works
SP 4449
Southern Pacific GS-4
United States · 1941
Specification
| Class | Southern Pacific GS-4 |
|---|---|
| Nicknames | Daylight, GS-4 |
| Builder | Lima Locomotive Works |
| Year introduced | 1941 |
| Country built | United States |
| Region | United States |
| Operators | Southern Pacific Railroad |
| Era | Golden-age steam |
| Motive power | Steam |
| Role | Express |
| Whyte | 4-8-4 |
| UIC | 2′D2′ |
| Wheel arrangement | 4-8-4 |
| Gauge | 1,435 mm — standard gauge |
| Quantity built | 28 |
| Power | About 5,500 indicated horsepower |
| Tractive effort | 64,800 lbf, plus a booster |
| Top speed | 177 km/h · 110 mph |
| Weight | 475,000 lb engine |
| Length | 110 ft engine and tender |
| Status | Operational heritage |