Description
Details:
Alco introduced the S-4 in 1950. The S-4, like the earlier S-2, was a 1000-horsepower switcher. Some 636 S-4’s were built for North American railroads. The primary quick spotting difference between the S-1/S-2 and the S-3/S-4 can be seen in the trucks. The S-1/S-2 has Blunt trucks, while the S-3/S-4 has AAR-style trucks. The versatility of the S-2’s and S-4’s was evidenced by their service in mainline railroads, shortlines,
and industrials.
Locomotive Features:
- Newly tooled with improved cab design
- 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
- Sturdy die-cast mainframe and gear cases
Sound Functionality Features:
- ESU LokSound decoder, supporting all DCC programming modes.
- Flexible mapping of function keys F0 to F31.
- Follows all NMRA DCC standards and recommended practices.
- Over 20 sound effects are available, including engine start-up and shutdown, prime mover sounds through all eight notches, bell, air horn, air compressor, and more.
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