GWR 3000 Class
3043 at Seer Green in 1950
Type and origin Power type Steam Build date 1917-1918 (built for the ROD) 1919-1925 (purchased) Total produced 100
Specifications Configuration: ​  • Whyte 2-8-0 Gauge 4 ft 8+1⁄2 in (1,435 mm)standard gauge Leading dia. 3 ft 6 in (1.067 m) Driver dia. 4 ft 8 in (1.422 m) Length 61 ft 9 in (18.82 m) Width 8 ft9+1⁄2 in (2.680 m) Height 13 ft5+1⁄4 in (4.096 m) Axle load 17 long tons 2 cwt (38,300 lb or 17.4 t) (17.4 t; 19.2 short tons) full Adhesive weight 66 long tons 8 cwt (148,700 lb or 67.5 t) (67.5 t; 74.4 short tons) full Loco weight 73 long tons 11 cwt (164,800 lb or 74.7 t) (74.7 t; 82.4 short tons) full Fuel type Coal Water cap. 4,000 imp gal (18,000 L; 4,800 US gal) Firebox: ​  • Grate area 26.07 sq ft (2.422 m2) Boiler pressure 185 lbf/in2 (1.28 MPa) Heating surface: ​  • Firebox 153.19 sq ft (14.232 m2)  • Tubes 1,591.38 sq ft (147.844 m2) Superheater: ​  • Type 6-element  • Heating area 6-element: 225.12 sq ft (20.914 m2) Cylinders Two, outside Cylinder size 21 in × 26 in (533 mm × 660 mm)
Performance figures Tractive effort 32,197 lbf (143.22 kN)
Career Operators GWR »BR Numbers 3000-3099, 6000-6003 Withdrawn 1929-1958 Disposition AllScrapped

TheGreat Western Railway (GWR)3000 Class was a class of2-8-0steam locomotive consisting of the ex-Railway Operating DivisionROD 2-8-0. These were built byNorth British Locomotive Co. between 1917 and 1918. No examples have been preserved.

The GWR borrowed several ROD 2-8-0s during theFirst World War but these were returned to thegovernment after the end of the war. In 1919, GWR bought 20 virtually new RODs, and numbered them 3000–19. A further 84 were hired in July 1919, and were numbered 3020-99 and 6000–3, but these were returned in October 1922. In 1925, the GWR bought 80 engines (including some previously hired) and numbered them 3020–99.

In 1926/7 the GWR sorted the eighty RODs bought in 1925 which had been given nos. 3020–99 into two batches, which involved considerable renumbering. The worst fifty weretouched up and returned to traffic with steel fireboxes and painted the original R.O.D. black and renumbered 3050–99;^[1] they were run until they failed, when they were withdrawn – after July 1930, only one remained, being withdrawn the following year.^[2] The best thirty werethoroughly overhauled, fitted with copper fireboxes and painted G.W. standard green,^[1] they also acquiredSwindon fittings, includingtop feed and brasssafety valve casing, and were renumbered 3020–49. Nos. 3000–19 (bought 1919) were also overhauled similarly to the new nos. 3020–49 between 1927 and 1929, but were not further renumbered.^[2] The leading dimensions of the GWR 3000 Class were the same as theGCR Class 8K except that the GWR increased the boiler pressure to 185 psi (1,280 kPa) which increased the tractive effort from 31,327 lbf (139,350 N) to 32,197 lbf (143,220 N).

The GWR borrowed 30Class O4 from theLNER in November 1940, of which two were returned the following April; ten were returned in July–August 1942 and the rest in January–February 1943. On the GWR, they retained their LNER numbers, which were scattered between 5391 and 6639.^[3] Three of these had been hired by the GWR between 1919 and 1922:

Forty-six of the RODs enteredBritish Railways service in 1948. Five locomotives (numbers 3011, 3015, 3024, 3036 and 3041) were still in service in 1957^[6] and of these, nos. 3036/41 were withdrawn in March 1958, the others in October the same year.^[7] None of the GWR RODs has survived to preservation.

In November 2011,Bachmann released aOO gauge ready to run model of the 3000 class. This complements kits in various gauges.

• Boddy, M.G.; Brown, W.A.; Neve, E.;Yeadon, W.B. (November 1983). Fry, E.V. (ed.).Locomotives of the L.N.E.R., part 6B: Tender Engines - Classes O1 to P2. Kenilworth:RCTS.ISBN 0-901115-54-1.
• Davies, F.K.; Firth, J.M.; Lucking, J.H.; Thomas, R.E.; Allcock, N.J.; Sterndale, A.C.; Barrie, D.S.M.; Reed, P.J.T.; Mountford, E.R. (April 1966). White, D.E. (ed.).The Locomotives of the Great Western Railway, part ten: Absorbed Engines, 1922-1947.RCTS.ISBN 0-901115-20-7.
• Whitehurst, Brian (1973).Great Western engines, names, numbers, types, classes: 1940 to preservation. Oxford: Oxford Pub. Co.ISBN 0902888218.

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