User:PST195J/GCR Class 11B: Difference between revisions
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==Origins== |
==Origins== |
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When [[John G. Robinson]] took up the reigns at [[Gorton]] there was a serious and immediate shortage of locomotives |
When [[John G. Robinson]] took up the reigns at [[Gorton]] there was a serious and immediate shortage of suitable locomotives<ref>{{harvnb|Hughes|1988|p=30}}</ref> . Part of the requirement was for express passenger engines for the newly completed [[The "London Extension"|London Extension]]. [[Harry Pollitt (engineer)|Pollitt's]] locomotives of [[GCR Class 11|class 11]] were performing satisfactorily but the [[piston valves|piston-valved]] [[GCR Class 11A|11A]] 4-4-0s, intended for use on [[Marylebone station|Marylebone]] expresses had been problematic<ref>{{harvnb|Smith|1993|p=4}}</ref>. There were also some previously ordered [[4-2-2]] 'singles' being delivered, but [[John G. Robinson|Robinson]] decided that more powerful locomotives were required<ref>{{harvnb|Hughes|1988|p=30-31}}</ref>. |
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The 11Bs therefore emerged as a robust and substantially enlarged evolution of [[GCR Class 11|class 11]], with the then-conventional [[slide valve]]s<ref>{{harvnb|Smith|1993|p=4}}</ref>. [[Gorton]] was busy at the time and the engines were needed urgently, so outside builders ([[Sharp Stewart and Company|Sharp, Stewart]] and [[Vulcan Foundry]]) were used<ref>{{harvnb|Smith|1993|p=4}}</ref><ref>{{harvnb|Hughes|1988|p=30-31}}</ref>. Delivery was rapid and 25 were in service by May 1902, 30 by March 1903 and all 40 by June 1904<ref>{{harvnb|Smith|1993|p=36}}</ref>. |
The 11Bs therefore emerged as a robust and substantially enlarged evolution of [[GCR Class 11|class 11]], with the then-conventional [[slide valve]]s<ref>{{harvnb|Smith|1993|p=4}}</ref>. [[Gorton]] was busy at the time and the engines were needed urgently, so outside builders ([[Sharp Stewart and Company|Sharp, Stewart]] and [[Vulcan Foundry]]) were used<ref>{{harvnb|Smith|1993|p=4}}</ref><ref>{{harvnb|Hughes|1988|p=30-31}}</ref>. Delivery was rapid and 25 were in service by May 1902, 30 by March 1903 and all 40 by June 1904<ref>{{harvnb|Smith|1993|p=36}}</ref>. |
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Although overshadowed by the later and more famous steam locomotives that John G. Robinson would go on to design, the Great Central Railway Class 11B 4-4-0 Express Passenger engines were a successful class which totalled 40[1]. Built from 1901-1903, in later rebuilt form as 11D, some 11Bs would last in service until 1950[2]. The London & North Eastern Railway classified the 11Bs, along with their 11C and 11D rebuilds, as Class D9[3].
Origins
When John G. Robinson took up the reigns at Gorton there was a serious and immediate shortage of suitable locomotives[4] . Part of the requirement was for express passenger engines for the newly completed London Extension. Pollitt's locomotives of class 11 were performing satisfactorily but the piston-valved 11A 4-4-0s, intended for use on Marylebone expresses had been problematic[5]. There were also some previously ordered 4-2-2 'singles' being delivered, but Robinson decided that more powerful locomotives were required[6].
The 11Bs therefore emerged as a robust and substantially enlarged evolution of class 11, with the then-conventional slide valves[7]. Gorton was busy at the time and the engines were needed urgently, so outside builders (Sharp, Stewart and Vulcan Foundry) were used[8][9]. Delivery was rapid and 25 were in service by May 1902, 30 by March 1903 and all 40 by June 1904[10].
Service History
As intended the 11Bs displaced Pollitt's 11As on the London Extension services, with engines shedded at Leicester, Gorton and Neasden.
The 11Bs were partially displaced in their turn by the arrival of Robinson's "Atlantics", a process largely completed by the arrival of the "Director" 4-4-0s. 11Bs then found uses on the older parts of the Great Central Railway network, based especially in Sheffield and Annesley, with others scattered elsewhere.
By the Grouping, increasing numnbers of the engines had been rebuilt with larger superheated boilers and piston valves becoming GCR Class 11E. The last conversion was completed in 1927.
Performance
Models
References
- Notes
- ^ Smith 1993, p. 4
- ^ Smith 1993, p. 36
- ^ Smith 1993, p. 8
- ^ Hughes 1988, p. 30
- ^ Smith 1993, p. 4
- ^ Hughes 1988, p. 30-31
- ^ Smith 1993, p. 4
- ^ Smith 1993, p. 4
- ^ Hughes 1988, p. 30-31
- ^ Smith 1993, p. 36
- Bibliography
- Hancox, A.C. (1995), The Harmonious Blacksmith Robinson, The Stephenson Locomotive Society, ISBN 0-903881-03-9
- Hughes, Geoffrey (1988), LNER 4-6-0s At Work, Ian Allan Ltd, ISBN 1-901945-06-5
- Smith, Martin (1993), Locomotives Illustrated 90: The Robinson Great Central 4-4-0s, Worcester Park, Surrey: RAS Publishing, ISSN 0307-1804
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External links
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