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
Specifications
Configuration 4-8-4
UIC class 2′D2′ h2
Gauge 4 ft 8 1⁄2 in (1,435 mm) standard gauge
Driver dia. 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)
Total 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
Performance figures
Tractive effort 62,200 lbf (276.68 kN), 75,910 lbf (337.66 kN) with booster
Factor of adh. 4.14
Career
Operators Southern Pacific Company
Texas and New Orleans Railroad
Class GS-1
Number in class 13
Numbers SP: 4400–4409,
T&NO: 700–703 (later SP second 4400, 4403, 4404, 4407)
Retired 1956
Disposition All scrapped

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 all equipped with Hancock 3-chime steamboat 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.

References

This article is issued from Wikipedia - version of the 11/9/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.