GWR 3200 class Type and origin Power type Steam Designer Charles Collett (rebuild)Order number Lots 315, 331 Rebuilder GWR Swindon Works Rebuild date 1936–1939 Number rebuilt 30
Specifications Configuration: • Whyte 4-4-0 • UIC 2′B h2 Gauge 4 ft 8+ 1 ⁄2 in (1,435 mm ) standard gauge Leading dia. 3 ft 8 in (1.118 m) Driver dia.5 ft 8 in (1.727 m) Minimum curve 6 chains (396 ft; 121 m) normal, Length 2+ 1 ⁄4 in (17.13 m)Width 9+ 1 ⁄2 in (2.680 m)Height 12 ft 10 in (3.912 m) Axle load 15 long tons 8 cwt (34,500 lb or 15.6 t) Adhesive weight 30 long tons 8 cwt (68,100 lb or 30.9 t) Loco weight 49 long tons 0 cwt (109,800 lb or 49.8 t) Tender weight 40 long tons 0 cwt (89,600 lb or 40.6 t) Fuel type Coal Fuel capacity 6 long tons 0 cwt (13,400 lb or 6.1 t) full Water cap. 3,500 imp gal (16,000 L; 4,200 US gal) Firebox: • Grate area 17.0 sq ft (1.58 m2 ) Boiler GWR Duke Boiler pressure 180 lbf/in2 (1.24 MPa) Heating surface: • Firebox 108.0 sq ft (10.03 m2 ) • Tubes 1,001.0 sq ft (93.00 m2 ) Superheater: • Heating area 81.2 sq ft (7.54 m2 ) Cylinders Two, inside Cylinder size 18 in × 26 in (457 mm × 660 mm) Valve gear Stephenson Valve type Slide valves
Career Operators GWR » BR Power class GWR: B, Numbers 3265, 3200–3228; renumbered 9065, 9000–9028 Nicknames Dukedog Axle load class Yellow Locale Western Region Withdrawn 1948–1960 Preserved 9017 Disposition One preserved, remainder scrapped
The Great Western Railway 3200 Class (or 'Earl' Class ) was a design of 4-4-0 steam locomotive for passenger train work. The nickname for this class, almost universally used at the time these engines were in service, was Dukedog since the locomotives were composed of former Duke Class boilers on Bulldog Class frames . As such they were one of the last standard gauge steam locomotive classes to retain outside frames .
