ATLAS (HO SCALE) S-4
LOCOMOTIVES
Built by the American Locomotive Company (Alco) the low-hood
S-1 was introduced in 1940 to replace Alco’s earlier high-hood
switchers. The 1000 horsepower S-1 was a turbocharged version
of the S-1. There were 1,502 S-1’s sold to North American Railroads.
Alco introduced the S-4 in 1950. The S-4 like the earlier S-1
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-1 and the S-3/S-4 can be seen in the trucks.
The S-1/S-1 has Blunt trucks, while the S-3/S-4 has AAR-style
trucks. The versatility of the S-1’s and S-4’s were evidenced
by their service in mainline railroads, shortlines, and industrials.
Atlas' version is back in service with handsome new paint schemes
for modeler enjoyment.
Features Include: -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
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