Southern Pacific class GS-1

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SP GS-1
Power type Steam
Builder Baldwin Locomotive Works
Configuration 4-8-4
Gauge ft 8½ in (1435 mm)
Driver size 73½ in (1.867 m) diameter
Weight on drivers 262,000 lb (118,800 kg)
Locomotive weight 442,300 lb (200,600 kg)
Boiler pressure 250 psi (1.72 MPa)
Cylinder size 27 in dia × 30 in stroke
Tractive effort 62,200 lbf (267 kN), 75,910 lbf (338 kN) with booster
Career Southern Pacific Railroad
Class GS-1
Number in class 14
Number 4400 – 4409, and second 4400, 4403, 4404, 4407
First run 1930
Retired 1956
Disposition scrapped

The GS-1 was a 4-8-4 Northern type steam locomotive that served the Southern Pacific 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 whistles.

They were assigned to various passenger trains throughout the SP system, and ended their careers on the San Jose-San Francisco commutes.

No GS-1 locomotives survive.

[edit] References

  • Diebert, Timothy S. and Strapac, Joseph A. (1987). Southern Pacific Company Steam Locomotive Conpendium. Shade Tree Books. ISBN 0-930742-12-5.