The Pollitt Class D6 (GCR Class 11A) 4-4-0 Locomotives. Pollitt developed his Class 11A (LNER D6) locomotives from the existing Class 11 (LNER D5) locomotives for use on the Great Central Railway's (GCR) London Extension. The most significant change was the replacement of slide valves with piston valves.

These locomotives were superseded by the Pollitt D6 and Robinson D9 locomotives in 1895 and 1901 respectively, and were reduced to stopping and secondary services. ... LNER ownership. They passed to the London and North Eastern Railway (LNER) in 1923 and both classes were re-classified D7. During the early years of the LNER (before 1928), the ...

The Great North of Scotland Railway (GNSR) was a particularly keen user, all 100 of its tender locos being 4-4-0s, including the only outside-cylinder variants acquired by the LNER in 1923. Another 45 4-4-0s of pre-Grouping ancestry were acquired from the Midland & Great Northern (M&GN) in 1936 .

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Class: Wheel Arr. Dr. Dia. Cylinders Dia. x Stroke: Boiler Press. Ad. Wt. EW WO: Grate Area: Evap. Surface: Sup. Surface: Remarks: 1: 4-6-0: 81in: 21½x26in: 180psi ...

Yeadon's Register of LNER Locomotives . Volumes 1 to 50. Classic series covering all the locomotives of the LNER, each volume well illustrated with class introduction and history of each locomotive. ... 29 - Class D5, D6, D7, D8, D9, D10, D11/1 & D12 GC The Great Central 4-4-0s 30 - Class E1, E2, GC12A, E4, E5, 901, 1440, E7 & E8 - the 2-4-0s ...

Pollitt developed his Class 11A (LNER D6) locomotives from the existing Class 11 (LNER D5) locomotives for use on the Great Central Railway's (GCR) London Extension. The most significant change was the replacement of slide valves with piston valves. These were located in horizontal steam chests beneath the cylinders.

The London and North Eastern Railway (LNER) produced several classes of locomotive, mostly to the designs of Nigel Gresley, characterised by a three-cylinder layout with a parallel boiler and round-topped firebox.It produced the most famous locomotive of its day, 4468 'Mallard', the holder of the world steam locomotive speed record.It also built the world-famous 4472 'Flying Scotsman'.

2012年3月16日 · LNER D6 4-4-0 No. 2101 (formerly No. 5855) is one of the very few of the 33 GC Class 11A which survived until World War 2, during which they still worked express trains on the CLC main line. It was built in 7/1898 and withdrawn in …