Description
Railroad Short Name: SP
Prototype Information:
The Southern Pacific GS-4 locomotives were a class of 4-8-4 “Northern” type steam locomotives operated by the Southern Pacific from 1941 to 1958. The SP owned a total of 28 GS-4 engines, numbered 4430 through 4457. The GS-4’s were quite similar to the SP GS-3 Northerns, except with the GS-4, the SP introduced a dual-headlight casing, with the top light being a Mars light, and also the GS-4 had an all-weather cab.
The GS-4 locomotives were designed and primarily used for passenger service. They were capable of reaching high speeds, and wore the colorful Daylight paint scheme to match Southern Pacific Daylight passenger cars. Some of the engines were painted black during WWII, and most of them were eventually painted black later in life.
Features:
- Paragon4 Sound & Control System featuring ROLLING THUNDER
- Synchronized Puffing Smoke with Chuff Sound
- Variable Puffing Smoke Intensity and timing
- Integral DCC Decoder with Back EMF for Industry Best Slow Speed Operation in DC and DCC
- Precision Drive Mechanism engineered for continuous heavy load towing and smooth slow speed operation
- 5-Pole Can Motor with Skew Wound Armature
- Heavy Die Cast Boiler, Tender Body, and Chassis for Increased Tractive Effort
- Premium Caliber Painting with Authentic Paint Schemes
- Prototypical Light Operation with Separately Controllable Headlight, Reverse Light, Cab Light, Mars Light, Front Numberboards, Front Marker Lights, Rear Marker Lights
- Factory-installed Engineer and Fireman Figures
- Prototypically Accurate Details for Each Road Number
- Many Separately Applied Details such as Handrails, Ladders, Conduit, Generators, Whistle, Horn, and Brass Bell
- Equipped with Rubber Traction Tires for Increased Pulling Power
- Recommended Minimum Radius: 22 inches
- Accurate Prototypical Sounds for the SP GS-4 Northern
Paragon4 Sound & Control System Features:
- Operates in DC & DCC with improved DC speed control (use DCMaster for DC Sound)
- Built-In extra capacitance to navigate imperfect track
- Pro Lighting Mode offers individual control of all lights on model
- Switcher Mode for precise low speed control
- Record & Play Operation – Records and plays back sounds and movements once or repeatedly for automatic operation
- High Resolution Audio
- Quillable Horn for various whistle lengths and patterns
- Choice of 3 selectable Horns
- Alternate Whistle / Horn where applicable for locomotive with air horn and steam whistle – both the main whistle and alternate can be easily played
- Adjustable bell ringing interval for faster or slower bell
- Numerous user-mappable functions with available keys
- Multiple realistic passenger and crew sounds play on command
- Grade Crossing Automatic Signal
- Automatic Forward / Reverse Signal
- Prime Mover sound intensity varies with load
- Individually adjustable sound volumes for each effect
- EZ Reset Button for quick return to factory default settings







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