Norfolk and Western A class Type and origin Power type Steam Builder N&W's Roanoke Shops Serial number 266–267, 273–280, 332–346, 353–362, 380–387 Build date 1936–1950 Total produced 43
Specifications Configuration: • Whyte 2-6-6-4 • UIC (1′C)C2′ h4g Gauge 4 ft 8+ 1 ⁄2 in (1,435 mm ) standard gauge Leading dia. 33 in (838 mm) Driver dia.70 in (1,778 mm) Trailing dia. 42 in (1,067 mm) Wheelbase Loco & tender: 108.27 ft (33.00 m)Length 9+ 1 ⁄4 in (37.1 m) including tender[ 1] Width 11 ft (3.35 m) Height 15 ft 10 in (4.83 m) Axle load 72,000 lb (33,000 kilograms; 33 metric tons) Adhesive weight 433,350 lb (196,560 kilograms; 196.56 metric tons) Loco weight 573,000 lb (260,000 kilograms; 260 metric tons) Tender weight 378,600 lb (171,700 kilograms; 171.7 metric tons) Total weight 951,600 lb (431,600 kilograms; 431.6 metric tons) Fuel type Coal Fuel capacity 30 short tons (27 t) Water cap. 22,000 US gal (83,000 L; 18,000 imp gal) Fuel consumption 7 short tons (6.4 t) of coal per hour Firebox: • Grate area 122 sq ft (11.3 m2 ) Boiler 106 in (2,692 mm) Boiler pressure 300 lbf/in2 (2.07 MPa) Heating surface: • Firebox 587 sq ft (54.5 m2 ) Superheater: • Type Type E • Heating area 2,703 sq ft (251.1 m2 ) Cylinders Four Cylinder size 24 in × 30 in (610 mm × 762 mm) Valve gear Baker
The Norfolk and Western A was a class of 43 2-6-6-4 simple articulated steam locomotives built by the railroad's own Roanoke Shops between 1936 and 1950 and operated until the late 1950s. The locomotives hauled fast and heavy freight trains for the railroad and only one has been preserved, No. 1218 .
