Built by the American Locomotive Company (Alco) the low-hood S-2 was introduced in 1940 to replace Alco’s earlier high-hood switchers. The 1000 horsepower S-2 was a turbocharged version of the S-1. There were 1502 S-2s sold to North American Railroads. The versatility of the S-2s was evidenced by their service on class 1 shortline and industrial railroads. Atlas’ version is back in service with new tooling as well as a sound-equipped version for modeler enjoyment. Features Include NMRA 8-Pin Socket for DCC (Silver Series Model) Redesigned & retooled hood cab & chassis The first plastic HO-scale model of an S-2 Locomotive to include accurate body paneldetails Option for horizontal or vertical radiator shutters Fine scale handrails Separately-applied grab irons coupler cut levers air hoses piping etc. Redesigned truck frames with separately applied detail Directional LED lighting (includes cab rear headlight) Die-cast chassis for improved pulling performance Chassis retooled for optional DCC/sound 5-pole skewed armature motor for reliable operation Dual-flywheels for maximum performance at all speeds Factory-equipped with AccuMate knuckle couplers Exceptional painting and printing DCC Operation Features Supports all DCC-programming modes Flexible mapping of function keys F0 to F28. A total of six DCC function outputs are available Follows all NMRA DCC standards and recommended practices. Sound Functionality Features Over 20 sound effects are available including engine start-up and shutdown prime mover sounds through all eight notches bell air horn air compressor dynamic brakes and more. There are 16 user-selectable horns 2 user-selectable bells and 2 user-selectable synchronized brake squeals. Manual and Automatic Notching modes with the ability to change modes ”on the fly” are provided for true realism.