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Baltimore and Ohio Class S Santa Fe Steam Locomotive
The Baltimore and Ohio's Class S consisted of two classes of 2-10-2 locomotives. They were nicknamed "Big Sixes" because of their size and, until renumbering in 1954, their road numbers all began with "6".
The S class proper were 31 locomotives built in 1914 by Baldwin Locomotive Works and numbered 6000–6030. The S-1 class was comprised of 125 locomotives numbered 6100–6224. They were built between 1923 and 1926, 75 by Baldwin and 50 by Lima Locomotive Works (Nos. 6150–6199). The Class S-1 and Class S-1a locomotives both had 64" diameter drivers, 30" x 32" cylinders, and 220 psi of boiler pressure. These locomotives could muster 84,150 pounds of tractive effort and weighed 436,510 pounds. This mighty group of 125 freight locomotives had a heating surface that featured 38 sq ft of arch tubes and a 67 sq ft combustion chamber. Combined with their 64" diameter drivers these locomotives were both powerful and fast. Sadly, no S Class locomotives survive.
S Class Overview
Disposition: Nos. 6009 and 6030 were dismantled in 1925 and boilers used to build two new "Mountain" type locomotives. 15 of the S Class locomotives were scrapped in 1938. All others scrapped between 1953 and 1959.
S-1 Class Overview
Build date: 1926
Build dates: 1926
Whyte Configuration: 2-10-2
Gauge: 4 ft 8 1⁄2 in (1,435 mm) standard gauge
Baltimore and Ohio No. 6100.
Baltimore and Ohio S-1 Class No. 6206 in 1928.
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Text: wikipedia.org. Images: Public Domain; http://www.commons.wikimedia.org (unless otherwise specified) and 17 U.S. Code § 107 fair use. References: Lewis, Robert G. The Handbook of American Railroads. New York: Simmons-Boardman Publishing Corporation, 1951, 2nd Edition 1956. Site Map Contact webmaster HERE.