GWR 1000 "County" class Specifications Configuration: • Whyte 4-6-0 • UIC 2'Ch2 Gauge 4 ft 8+ 1 ⁄2 in (1,435 mm ) standard gauge Leading dia. 3 ft 0 in (914 mm) Driver dia.6 ft 3 in (1,905 mm) Minimum curve 8 chains (528 ft; 161 m) normal, Length 0+ 1 ⁄4 in (19.21 m)Width 11+ 1 ⁄8 in (2.721 m)Height 13 ft 5 in (4.089 m) Axle load 19 long tons 14 cwt (44,100 lb or 20 t) (22.1 short tons) full Adhesive weight 59 long tons 2 cwt (132,400 lb or 60 t) (66.2 short tons) full Loco weight 76 long tons 17 cwt (172,100 lb or 78.1 t) (86.1 short tons)full Tender weight 49 long tons 0 cwt (109,800 lb or 49.8 t) (54.9 short tons) full Fuel type Coal Fuel capacity 7 long tons 0 cwt (15,700 lb or 7.1 t) (7.8 short tons) Water cap. 4,000 imp gal (18,000 L; 4,800 US gal) Firebox: • Grate area 28.84 sq ft (2.679 m2 ) Boiler GWR Standard No. 15[ 1] Boiler pressure 280 psi (1.93 MPa ) later reduced to 250 psi (1.72 MPa) Heating surface: • Firebox 169.0 sq ft (15.70 m2 ) • Tubes and flues 1,545.0 sq ft (143.54 m2 ) Superheater: • Heating area 254.0 sq ft (23.60 m2 ) Cylinders Two, outside Cylinder size 18.5 in × 30 in (470 mm × 762 mm) Valve gear Stephenson Valve type piston valves
Performance figures Tractive effort 32,580 lbf (144.92 kN), later reduced to 29,090 lbf (129.40 kN)
The Great Western Railway 1000 Class or County Class was a class of 4-6-0 steam locomotive . Thirty examples were built between 1945 and 1947, but all were withdrawn and scrapped in the early 1960s. A replica locomotive is under construction.
