The RS-1 was introduced by ALCO in March of 1941 with the delivery of the first of two units to the Rock Island. Combining the accessibility of a switching locomotive and the higher-speed tracking of a road unit, the RS-1 started a revolution in locomotive design that was soon embraced by all of the major diesel-electric builders. Despite ALCO's own introduction of higher horsepower roadswitchers, the 1,000 h.p. RS-1 had a production span of 19 years (1941-1960) with 623 units.

• Retooled die-cast metal chassis and fine scale handrails
• Golden White LEDs
• New! DCC/Sound version available with LokSound decoder
• Separately-applied wire grab irons, coupler cut bars, trainline hoses and lift rings
• Accurate painting and printing
• AccuMate® couplers
• Realistic die-cast mainframe
• Five-pole skewed armature motor with dual-flywheels for optimum performance at all speeds
• Directional lighting

Features:
- Golden-white LEDs
- Realistic die-cast mainframe
- Five-pole skewed armature motor with dual flywheels for optimum performance at all speeds
- Directional lighting
- Factory-equipped with AccuMate knuckle couplers
- Separately-applied wire grab irons
- MU hoses and coupler cut bars
- Two painted crew members
- NMRA 8-pin plug for DCC