Friday Night Steam

The true story of the 4501. Grab a cuppa, sit back and enjoy!!

Southern Railway 4501
No. 4501 on display in 2006
Type and origin References:[1] Power type Steam Builder Baldwin Locomotive Works Serial number 37085 Model 12-48 1/4 E Build date October 1911
Specifications Configuration: ​  • Whyte 2-8-2  • UIC 1'D1'h Gauge 4 ft 8 1⁄2 in (1,435 mm) standard gauge Driver dia. 63 in (1.600 m) Adhesive weight 215,700 lb (97,800 kg) Loco weight 272,900 lb (123,800 kg) Fuel type Coal Boiler pressure 205 psi (1.41 MPa) Cylinders Two, outside Cylinder size 27 in × 30 in (686 mm × 762 mm) Valve gear Walschaerts
Performance figures Tractive effort 53,900 lbf (239.8 kN) Factor of adh. 4.00
Career
Operators	Southern Railway Kentucky & Tennessee Railway
Class	Ms
Number in class	1st of 182
Numbers	SOU 4501 K&T 12 L&N 1593
Nicknames	"The Big Engine" (by K&T crews)[2]
Retired	February 1964 (revenue) September 20, 1998 (excursion)
Restored	August 1966 (1st restoration) September 6, 2014 (2nd restoration)
Current owner	Tennessee Valley Railroad Museum
Disposition	Operational, based in Chattanooga, Tennessee at Tennessee Valley Railroad Museum

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