Southern Pacific class GS-1
Southern Pacific GS-1
| Type and origin |
|---|
| Power type |
Steam |
|---|
| Builder |
Baldwin Locomotive Works |
|---|
| Serial number |
T&NO: 61390–61391, 61408–61409
SP: 61410–61415, 61430–41433 |
|---|
| Build date |
May–July 1930 |
|---|
| Total produced |
14 |
|---|
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| Specifications |
|---|
| Configuration |
4-8-4 |
|---|
| UIC class |
2′D2′ h2 |
|---|
| Gauge |
4 ft 8 1⁄2 in (1,435 mm) standard gauge |
|---|
| Driver diameter |
73 1⁄2 in (1,867 mm) |
|---|
| Wheelbase |
88.23 ft (26,893 mm) |
|---|
| Axle load |
67,000 lb (30,000 kilograms; 30 metric tons) |
|---|
| Adhesive weight |
262,000 lb (119,000 kg; 119 t) |
|---|
| Loco weight |
442,300 lb (200,600 kg; 200.6 t) |
|---|
| Loco & tender weight |
733,300 lb (332,600 kg; 332.6 t) |
|---|
| Fuel type |
Fuel oil |
|---|
| Fuel capacity |
4,690 US gal (17,800 l; 3,910 imp gal) |
|---|
| Water cap |
16,150 US gal (61,100 l; 13,450 imp gal) |
|---|
Firebox:
• Firegrate area |
90.2 sq ft (8.38 m2) |
|---|
| Boiler pressure |
250 psi (1.72 MPa) |
|---|
| Feedwater heater |
Worthington Type S, No. 5 |
|---|
| Heating surface |
4,858 sq ft (451.3 m2) |
|---|
| • Firebox |
356 sq ft (33.1 m2) |
|---|
Superheater:
• Heating area |
2,565 sq ft (238.3 m2) |
|---|
| Cylinders |
Two, outside |
|---|
| Cylinder size |
27 in × 30 in (686 mm × 762 mm) |
|---|
| Valve gear |
Walschaerts |
|---|
| Valve type |
Piston |
|---|
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The GS-1 was a 4-8-4 Northern type steam locomotive that served the Southern Pacific Railroad and its Texas subsidiary the Texas and New Orleans Railroad from 1930 to 1956. They were built by Baldwin Locomotive Works and were numbered 4400 through 4409. GS stands for "Golden State" or "General Service."
The GS-1 had all of the basic steam locomotive features; a silver smokebox with a mounted single headlight with a bell mounted just above it, teardrop classification lights, and were equipped with 3-chime Hancock steam whistles.
They were assigned to various passenger trains throughout the SP system, and ended their careers on the San Jose-San Francisco commutes.
Only 4402 Did in Sacramento, CA.
References
- Diebert, Timothy S. and Strapac, Joseph A. (1987). Southern Pacific Company Steam Locomotive Conpendium. Shade Tree Books. ISBN 0-930742-12-5.