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Great Central Railway Class 8
Ex-Great Central 'Fish' class 4-6-0 at Mexborough Locomotive Depot
Type and origin Power type Steam Designer John G. Robinson Builder Neilson & Co. (6), Beyer, Peacock & Co. (8) Build date 1902 (6), 1904 (8) Total produced 14
Specifications Configuration: ​  • Whyte 4-6-0  • UIC 2'C Gauge 4 ft 8+1⁄2 in (1,435 mm) Leading dia. 3 ft 6 in (1.067 m) Driver dia. 6 ft 1 in (1.854 m) Length 60 ft9+1⁄4 in (18.523 m)[1] Loco weight 64.15 long tons (65.18 t) Firebox: ​  • Grate area 23.5 sq ft (2.18 m2) Boiler: ​  • Diameter 4 ft 6.5 in (1,384 mm) to 4 ft 9 in (1,450 mm) Boiler pressure 180 psi (1.24 MPa) Heating surface Saturated: 1,795 sq ft (166.8 m2) Superheated:1,338 sq ft (124.3 m2) [2] Cylinders Two, outside Cylinder size 19 in × 26 in (483 mm × 660 mm) Valve gear Stephenson Valve type Slide valves
Performance figures Tractive effort 19,672 lbf (87.51 kN)
Career Operators Great Central Railway →London & North Eastern Railway →British Railways Class GCR: 8 LNER: B5 Numbers GCR: 1067–1072, 180–187 LNER: 6067–6072, 5180–5187; later 1678–1682 BR: 61678–61682 Nicknames Fish engines Retired 1939–1950 Disposition All scrapped

TheGreat Central Railway Class 8, known as theLondon and North Eastern RailwayClass B5 following the1923 Grouping, was a class of fourteen4-6-0steam locomotives designed to haul fast goods trains, in particular fish trains.

They were nicknamed "Fish Engines" because of their designed role and due to their frequent use on the fastfish trains heading fromGrimsby to places likeLondon. They were passed on into service withBritish Railways in 1948 and the last locomotive was withdrawn in 1950.

A1/5 scale, 10.25 in gauge model of number 181 has been made by Andrew Simkins. This model is externally faithful to Robinson's design, but also uses a footwell to conceal most of the driver in the tender. It was showcased and won an award at the Model engineering exhibition in 2003. It has since been seen on several of the 10.25 in gauge railways around Britain.^{[citation needed]}

• Boddy, M.G.; Brown, W.A.; Fry, E.V.; Hennigan, W.;Hoole, Ken; Manners, F.; Neve, E.; Platt, E.N.T.; Proud, P.;Yeadon, W.B. (March 1975).Locomotives of the L.N.E.R., part 2B: Tender Engines - Classes B1 to B19. Lincoln:RCTS.ISBN 0-901115-73-8.OCLC 655688865.
• Casserley, H.C.; S.W. Johnson (1974) [1966].Locomotives at the Grouping 2: London and North Eastern Railway. Shepperton, Surrey: Ian Allan Limited. pp. 12, 107, 111.ISBN 0-7110-0553-2.

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