Southern Pacific Class GS-3

Southern Pacific GS-3
Southern Pacific GS-3 locomotives.
Technical specifications
Serial number(s)	7721–7734
Manufacturer(s)	Lima Locomotive Works
Build date	October–December 1937
Total produced	14
Classification	GS-3
Rail gauge	4 Foot 8 Inches
Cylinders	Two, outside
Boiler pressure	280 psi (1.93 MPa)
Bore stroke	26 in × 32 in (660 mm × 813 mm)
Firegrate area	90.4 sq ft (8.40 m2)
Fuel type	Fuel oil
Heating area	4,890 sq ft (454 m2)
Performance figures
Maximum speed	At least 106 mph (171 km/h)
Continuous power-output	5000hp at 60 mph (97 km/h)
Tractive effort	62,800 lbf (279.35 kN) 76,650 lbf (340.96 kN) with booster
Service information
Running numbers	4416–4429
Disposition details
Preserved	See Here
Disposition	All scrapped

The GS-3 was a class of streamlined 4-8-4 "Northern" type steam locomotive operated by the Southern Pacific Railroad (SP) from 1938 to 1957. A total of fourteen were built by the Lima Locomotive Works, numbered 4416 through 4429. GS stands for "Golden State" or "General Service."

History

The popularity of the Southern Pacific Coast Daylight trains was overwhelming and prompted the Southern Pacific to initiate plans to introduce several new streamlined, lightweight trains: the Noon Daylight, the San Joaquin Daylight, and the Lark. A second order for 14 additional Daylight engines was placed with Lima Locomotive Works. All engines were set up upon delivery at El Paso, Texas. Number 4416 was the first and was set up on November 3, 1937. Number 4429 was last and set up on December 30, 1937. The GS-3 had an appearance similar to the GS-2. They featured a silver smokebox with a cone-shaped single headlight casing, skyline casing on the top of the boiler, skirting on the sides, an air horn to supplement the whistle, and teardrop classification lights. The only significant difference in appearance was the increase in driver size.

They received the orange and red "Daylight" paint scheme. They were primarily used on Southern Pacific's premier passenger train at the time, the Coast Daylight. In later years after being replaced by newer GS-4 class engines, they were painted black, had their side skirting removed for easier maintenance, and were reassigned to San Jose-San Francisco Peninsula Commute service, freight service, and made occasional appearances on the San Joaquin Daylight.

Preservation

After retirement in 1957, all GS-3s were scrapped. However, one wheel from No. 4422, the first axle, right side, was rescued just before scrapping by William B. Fletcher. It was donated to the RailGiants Train Museum at the Los Angeles County Fairgrounds in Pomona, California where it is on display.

Locomotive Roster

Loco No.	Image	Build date(s)	Current status	Notes
4416		1937	Scrapped
4417	https://digital.sonomalibrary.org/documents/detail/78795	1937	Scrapped
4418		1937	Scrapped
4419		1937	Scrapped
4420		1937	Scrapped
4421		1937	Scrapped
4422		1937	Scrapped	The one wheel from the #4422, the first axle, right side, was rescued just before scrapping. It was donated to the RailGiants Train Museum at the Los Angeles County Fairgrounds in Pomona, California where it is today placed on display.
4423		1937	Scrapped
4424		1937	Scrapped
4425		1937	Scrapped
4426	https://external-preview.redd.it/rpu_X7UNa6vm51tjqeJQjqq-FaV2KQu5GmrPYG9-46k.jpg?width=640&crop=smart&auto=webp&s=46e91ca231108168b77ea0456ac6523c8cc9f688	1937	Scrapped
4427	https://www.deviantart.com/edjack14/art/Southern-Pacific-GS-3-4427-702137864	1937	Scrapped
4428		1937	Scrapped
4429	http://espee.railfan.net/nonindex/steam-02/4429_sp-steam-gs03-gene_deimling.jpg	1937	Scrapped

Accidents

Main article: Bagley train wreck

On December 31, 1944, GS-3 4425 was hauling the Pacific Limited passenger train westbound near Bagley, Weber County, Utah when it was run into from behind by Mt-4 4361, pulling a mail express train. The first train had slowed because of a freight train ahead of it, but the second train's crew failed to see the signal in thick fog and collided with the first train at 50 mph. 50 people were killed and 81 injured in the disaster.

Gallery

• Gallery

External links

• Southern Pacific Coast Daylight Engines