Little Joe (Baltimore and Ohio locomotive)

This article is about the Baltimore and Ohio steam locomotive. For the electric locomotive, see Little Joe (electric locomotive).

B&O class C-16
Type and origin Power type Steam Builder Baldwin Locomotive Works Build date 1912
Specifications Configuration: ​  • Whyte 0-4-0ST  • UIC B Gauge 4 ft 8+1⁄2 in (1,435 mm) standard gauge Driver dia. 46 in (1.168 m) Loco weight 120,000 lb (54,000 kg; 54 t) Boiler pressure 180 psi (1.2 MPa) Cylinder size 19 in × 24 in (483 mm × 610 mm) Valve gear Walschaerts
Performance figures Tractive effort 27,617 lbf (122.85 kN)
Career Operators Baltimore and Ohio Railroad Class C-16 Numbers 96-99 Nicknames "Little Joe", "Dockside"

The C-16 class switchers were the last 0-4-0 steam locomotives built for the Baltimore and Ohio Railroad. They were assigned to the Baltimore, Maryland "Pratt Street Line" along the Inner Harbor, and to the Philadelphia, Pennsylvania waterfront trackage. Initially constructed as saddle tank engines, nos. 96 and 99 were given tenders in later years. After the saddle tank was removed in 1926 they were then given the classification of "C-16A" (Nos. 97 and 98 remained unchanged). The diminutive size and short wheelbase were required to handle the tight curves of these lines. No. 99 was scrapped in 1944. No. 97 was renumbered 897 in 1950 and scrapped in 1951. No. 98 was renumbered 898 in 1950 and also scrapped in 1951.

Nicknamed "Little Joe" by railroad workers, they became famous to several generations of model railroad enthusiasts through construction of N, HO, S & O scale models of the "Dockside" switcher. Arguably one of the best known of all steam locomotive models for half a century, versions of the C-16 have been offered by Varney, Rivarossi, Gem, Life-Like, Pacific Fast Mail, MTH, Bachmann and others. They were also used as a model for Trainz Railroad Simulator.

They are not to be confused with the unrelated electric locomotives also nicknamed "Little Joe".