SUNSET MODELS 3RD RAIL ALCO RS1 GULF MOBILE & OHIO- 2 RAIL

The ALCo RS-1 was the locomotive that helped launch the road-switcher revolution—compact, reliable, and perfectly suited to the mixed duties railroads faced every day. With 1,000 horsepower and a rugged B-B wheel arrangement, the RS-1 excelled at local freights, yard switching, transfer runs, and branchline work.

On the Gulf, Mobile & Ohio, RS-1s became indispensable across the system, working everything from industrial switching to road assignments that demanded steady pulling power and sure-footed performance. GM&O’s diesel fleet is beloved for its clean styling and distinctive branding, and the RS-1 fits right into that classic mid-century look—an ideal locomotive for realistic operations and era-accurate consists.

Now, Sunset Models 3rd Rail brings the GM&O RS-1 to O Scale with a precision ABS plastic shell, die-cast metal chassis, and fine brass detail parts—delivering museum-quality presence and durability in both 2-Rail and 3-Rail.

Each locomotive is finished with accurate GM&O lettering and detailing appropriate to its service era.

Model Features

• Precision ABS Plastic Shell with Die-Cast Metal Chassis
• Fine Brass Detail Parts — handrails, grab irons, grilles, pilot hardware, lift rings, and rooftop fittings
• Authentic GM&O Paint & Lettering — correct fonts, striping, and number placement
• Road-Specific GM&O Details — lighting package, horn placement, number boards, and appliance arrangements matched to prototype practice
• Powerful Can Motor Drive for smooth, quiet performance
• All-Wheel Drive and All-Wheel Electrical Pickup

*3R ERR Cruise/TMCC/Railsounds compatible with TMCC/Legacy/DCS, 3R Conventional for your choice of sound, and 2R ESU Loksound 5.0. 

*OEM Blunami Upgrade Option Available for both 2-Rail and 3-Rail

*LED Lighting Suite — headlights and illuminated number boards

*ERR Cruise Compatibility: Legacy, DCS, TMCC, and Conventional control systems

Smoke is not available in 3-Rail units due to space constraints.