Southern Railway 1643

Southern Railway 1643
Type and origin Power type Steam Builder American Locomotive Company (Pittsburgh Works) Serial number 37672 Build date September 1905
Specifications Configuration: ​  • Whyte 0-6-0 Gauge 4 ft 8+1⁄2 in (1,435 mm) Driver dia. 50 in (1.270 m) Fuel type Coal Boiler pressure 185 psi (1.28 MPa) Cylinders Two, outside Cylinder size 20 in × 26 in (508 mm × 660 mm) Valve gear Stephenson
Performance figures Tractive effort 32,710 lbf (145.5 kN)
Career Operators Southern Railway, Morehead & North Fork Railroad Class A-7 Numbers 1643 (SOU), 12 (M&NF) Retired 1963 Current owner Jerry Jacobson Disposition Stored, awaiting restoration

Southern Railway 1643 is a steam locomotive built in 1905 by the Pittsburgh Works of the American Locomotive Company for the Southern Railway. It is a 0-6-0 Switch engine of Southern's A-7 class.

In 1952, the engine was sold to the Morehead & North Fork Railroad in Morehead, Kentucky. Renumbered 12, the locomotive operated on the M&NF until the road dieselized in 1963. After the engine was retired, it remained stored in one of the road's engine sheds. In 2011, the engine was purchased by Jerry Jacobson, and moved to his Age of Steam Roundhouse in Sugarcreek, Ohio. Here, the engine is planned to be restored to operating condition.