American Locomotive Companies RS-11 were produced from 1956 to 1961 and was the replacement for the RS-3 road switcher. This engine featured a V-12 turbocharged engine of 1800 HP and was the answer to EMDs GP9 engines. The RS-11 was rated with a higher tractive effort and used less fuel. Favored by modelers with its distinctive "chiseled" number boards. ALCO manufactured 425 of these road engines.

ALCO RS-11 Locomotive features:

Note: RS-11s were painted in solid black with larger lettering and mostly Cigar Band logos.  The only ones painted in Lightning Stripes were road #s 8009- 8014 that were not delivered to the NYC and eventually sold to the Delaware & Hudson.