Great Western Railway 9400 class 9405 at Paddington in 1947
Type and origin Power type Steam Designer Frederick Hawksworth Builder Order number GWR Lot Nos. 365, 382–387 Serial number RSH: 7450–69, 7547–96, 7611–40 WGB: 2910–2959 YEC: 2443–72, 2544–53, 2575–84 Build date 1947–1956 Total produced 210
Specifications Configuration: • Whyte 0-6-0PT • UIC Gauge 4 ft 8+ 1 ⁄2 in (1,435 mm ) standard gauge Driver dia.7+ 1 ⁄2 in (1.410 m)Minimum curve 5 chains (330 ft; 100 m) normal, 4.5 chains (300 ft; 91 m) slow Wheelbase 15 ft 6 in (4.72 m) Length 33 ft 2 in (10.11 m) over buffers Width 8 ft 7 in (2.616 m) Height 5+ 1 ⁄2 in (3.797 m)Axle load 19 long tons 5 cwt (43,100 lb or 19.6 t) (21.6 short tons) full Loco weight 55 long tons 7 cwt (124,000 lb or 56.2 t) (62.0 short tons) full Fuel type Coal Water cap. 1,300 imp gal (5,900 L; 1,600 US gal) Firebox: • Grate area 17.40 sq ft (1.617 m2 ) Boiler GWR Standard No. 10[ 1] Boiler pressure 200 lbf/in2 (1.38 MPa) Heating surface: • Firebox 101.7 sq ft (9.45 m2 ) • Tubes 1,245.7 sq ft (115.73 m2 ) • Total surface 1,347 sq ft (125.1 m2 ) Cylinders Two, inside Cylinder size 17+ 1 ⁄2 in × 24 in (444 mm × 610 mm)
Career Operators Class 9400 or 94XX Power class Numbers 9400–9499, 8400–8499, 3400–3409 Axle load class GWR: Red Locale Western Region Withdrawn 1959–1965 Preserved 9400, 9466 Disposition Two preserved, remainder scrapped
The Great Western Railway (GWR) 9400 Class is a class of 0-6-0 pannier tank steam locomotive, used for shunting and banking duties.
The first ten 9400s were the last steam engines built by the GWR. After nationalisation in 1948, another 200 were built by private contractors for British Railways (BR). Most had very short working lives as the duties for which they were designed disappeared through changes in working practices or were taken over by diesel locomotives . Two locomotives survived into preservation, with the oldest of the class, 9400 as part of the National Collection .
