GCR Class 9Q
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|GCR Class 9Q
LNER Class B7
LNER 1386, (formerly 5034), at Darnall Locomotive Depot in 1949
|Type and origin|
|Designer||John G. Robinson|
|Gauge||4 ft 8 1⁄2 in (1,435 mm)|
|3 ft 6 in (1.067 m)|
|Driver diameter||5 ft 8 in (1.727 m)|
|Length||63 ft 0 in (19.202 m)|
|Locomotive weight||127 long tons (129 t)|
|Boiler pressure||180 psi (1.24 MPa)|
|Cylinder size||16 in × 26 in (406 mm × 660 mm)|
|Tractive effort||29,953 lbf (133.2 kN)|
The GCR Class 9Q, classified B7 by the LNER, was a class of 4-6-0 mixed traffic locomotives designed by John G. Robinson for fast goods, relief passenger and excursion services on the Great Central Railway. They were a smaller wheeled version of Robinson’s earlier Class 9P "Lord Faringdon" express passenger class (LNER Class B3).
The GCR built two batches at Gorton locomotive works, during 1921 and 1922, and they also ordered batches from Vulcan Foundry and the Beyer, Peacock and Company. Twenty eight locomotives had been delivered by Grouping in 1923.
The last batch had reduced boiler mountings and detail differences to the cab to conform to the new LNER loading gauge. These were classified B7/2. The earlier batches were classified B7/1.
Thirty-eight locomotives passed to British Railways in 1948, but withdrawal began soon afterwards. Some locomotives surviving in 1949 were renumbered between 61702 and 61713 to make more room for Thompson Class B1 locomotives then under construction.
None has been preserved.
|Year||Maker||GCR Nos.||LNER Nos.||LNER 1942 Nos.||BR Nos.||BR 1949 No.|
|1921||Gorton||72, 73, 78||5072, 5073, 5078||1360–1362||(61360–61362)||—|
|1921||Vulcan Foundry||36–38, 458–564||5036–5038, 5458–5464||1363–1372||(61363–61372)||61702–61703|
|1923–24||Gorton||475–482, –, –||5475–5484||1388–1397||(61388–61397)||61710–61713|
- Boddy et al. 1975, p. 42.
- 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). Fry, E. V., ed. Locomotives of the L.N.E.R., Part 2B: Tender Engines—Classes B1 to B19. Lincoln: RCTS. ISBN 0-901115-73-8.
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