Southern Railway Ps-4 class

Southern Railway Ps-4 class
ALCO Richmond built Ps-4 No. 1396 built in 1926.
Type and origin References:[1][2][3] Power type Steam Builder ALCO Schenectady (1923-1924 order) ALCO Richmond (1926 order) Baldwin Locomotive Works (1928 order) Build date 1923-1928 Total produced 64
Specifications Configuration: ​  • Whyte 4-6-2 "Pacific" Gauge 4 ft 8+1⁄2 in (1,435 mm) standard gauge Leading dia. 33 in (838 mm) Driver dia. 73 in (1,854 mm) Trailing dia. 43 in (1,092 mm) Wheelbase 13 ft 0 in (3.962 m) Frame type Bar Axle load 61 long tons (62.0 t) Adhesive weight 182,000 lbf (809.6 kN) Tender type 3 axle bogie (1926 order), 2 axle bogie (1923 and 1928 orders) Fuel type Coal Fuel capacity 16 long tons (16.3 t) Water cap. 10,000 imp gal (45,000 L) (1923 order), 14,000 imp gal (64,000 L) (1926 order), 12,000 imp gal (55,000 L) (1928 order) Firebox: ​  • Grate area 70.5 sq ft (6.550 m2) Boiler pressure 200 psi (1,380 kPa) Feedwater heater Worthington (1923 order), Elesco (1926 and 1928 orders), Coffin (No. 1409) Cylinders Two Cylinder size 27 in (686 mm) bore 28 in (711 mm) stroke Valve gear Baker (1923 and 1926 orders), Walschaerts (1928 order)
Performance figures Maximum speed 60–80 mph (97–129 km/h) Power output 2,624 hp (1,957 kW) Tractive effort 47,535 lb (21.6 tonnes) Factor of adh. 3.79
Career Operators Southern Railway, Alabama Great Southern Railroad, Cincinnati, New Orleans and Texas Pacific Railway Class Ps-4 Number in class 64 Numbers SOU No. 1366-1409 AGS No. 6684-6691 CNO&TP No. 6471-6482 Delivered 1923-1928 Withdrawn 1949-1953 Preserved No. 1401 Disposition One preserved, remainder scrapped

The Southern Railway Ps-4 was a class of 4-6-2 steam locomotives built for the Southern Railway, as well as its subsidiaries, the Alabama Great Southern Railroad and the Cincinnati, New Orleans and Texas Pacific Railway. The locomotives were notable for their green with gold trim liveries, and have been regarded by Smithsonian curator John H. White Jr. as being "among the most celebrated passenger locomotives operated in the United States...."