GNR Class J23
GNR Class J23
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GNR Class J23 LNER Classes J50 & J51 | |||||||||||||||||||||||
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J50/3 No. 68973 0-6-0T at Doncaster Locomotive Depot, fresh from repair at Doncaster Works | |||||||||||||||||||||||
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The Great Northern Railway Class J23 was a class of 0-6-0T steam locomotive. They had long side tanks that came to the front of the smokebox, which sloped forwards to improve visibility and had a recess cut in to aid maintenance. Forty were built by the Great Northern Railway (GNR) between 1913 and 1922, with a further 62 being added by the London and North Eastern Railway (LNER) between 1924 and 1939.
Contents
1 History
2 Numbering
3 Notes
4 References
5 External links
History[edit]
For shunting and local goods work, the Great Northern Railway (GNR) had traditionally used saddle-tank engines of the 0-6-0 wheel arrangement; the last of these, of GNR Class J13, having been built in 1909 to the designs of H.A. Ivatt, the GNR Locomotive Superintendent.[1][2]
Nigel Gresley succeeded Ivatt in 1911,[3] and soon identified a need for engines to work the short-haul coal traffic in the West Riding of Yorkshire; the nature of which required that the locomotives also be suitable for shunting. He designed a new class of 0-6-0 tank engine, using side tanks instead of saddle tanks.[4] Gresley had recently begun the rebuilding of the GNR Class L1 0-8-2T locomotives with larger boilers, 4 feet 8 inches (1.42 m) in diameter,[5] which left a number of 4-foot-2-inch (1.27 m) diameter boilers spare. Thirty of these were used in the construction of the new goods tank engines between 1913 and 1919;[4] when ten more were built in 1922, these again used secondhand boilers, but 4 feet 5 inches (1.35 m) in diameter.[6] On the GNR, both varieties were classified J23, but the LNER divided them into J51 with smaller boilers, and J50 with larger boilers.[4] The LNER continued the construction of Class J50, building a further 62 up to 1939,[7] only the first ten of which were given secondhand boilers.[8] Class J51 were rebuilt to class J50 between 1929 and 1935.[4]
Each of the two main classes exhibited variations: locomotive brakes could be operated by vacuum or steam pressure; the driving position could be on the right- or the left-hand side of the cab; and there were three sizes of coal bunker. These variations were recognised by class subdivisions:[7]
- J51/1 10 built 1913–14, 4 ft 2 in boiler, vacuum brake, right-hand drive, short bunker
- J51/2 20 built 1914–19, as J51/1 but long bunker
- J50/1 10 rebuilt 1929–35 from J51/1 with 4 ft 5 in boiler
- J50/2 20 built 1922–24, as J51/2 but 4 ft 5 in boiler, plus 20 rebuilt 1929–34 from J51/1 with 4 ft 5 in boiler
- J50/3 38 built 1926–30, 4 ft 5 in boiler, steam brake, left-hand drive, long bunker
- J50/4 14 built 1938–39, 4 ft 5 in boiler, vacuum brake, left-hand drive, long bunker with hopper
All were built at Doncaster, except the last fourteen which were built at Gorton.[9] Further orders were placed in 1939 and 1941 totalling 25 more locomotives, but these were cancelled in 1942 after a number of components had been manufactured.[10]
Numbering[edit]
On the GNR, the numbers were 157–164, 166–176, 178, 211–230; these were increased by 3000 by the LNER.[11] The first ten engines built by the LNER were numbered 3231–40, following on from the GNR engines;[12] but those built from 1926 were given scattered numbers between 583 and 636, between 1037 and 1086, and 2789–94.[13]
In 1943, new numbers were allotted in a continuous block from 8890 to 8991; these numbers were applied between January and December 1946,[14] but before this could be done, the oldest ten, nos. 3157–64/6/7 were temporarily renumbered 3180–9 in May and June 1945. They duly received their permanent numbers 8890–9 between June and December 1946.[15] Under British Railways, the 1946 numbers were increased by 60000.[16]
Notes[edit]
^ Groves 1987, pp. 260–2.
^ Allen et al. 1970, pp. 25–26.
^ Groves 1992, p. 3.
^ abcd Groves 1992, p. 65.
^ Groves 1990, pp. 75–76.
^ Groves 1992, p. 70.
^ ab Allen et al. 1970, p. 7.
^ Groves 1992, pp. 71,72.
^ Allen et al. 1970, pp. 8,11,12.
^ Allen et al. 1970, p. 13.
^ Allen et al. 1970, pp. 7,8,11.
^ Allen et al. 1970, p. 11.
^ Allen et al. 1970, p. 12.
^ Allen et al. 1970, p. 8.
^ Allen et al. 1970, p. 19.
^ Allen et al. 1970, p. 16.
References[edit]
Allen, D. W.; Boddy, M. G.; Brown, W. A.; Fry, E. V.; Hennigan, W.; Manners, F.; Neve, E.; Proud, P.; Roundthwaite, T. E.; Tee, D. F.; Yeadon, W. B. (November 1970). Fry, E. V., ed. Locomotives of the L.N.E.R., part 8A: Tank Engines - Classes J50 to J70. Kenilworth: RCTS. ISBN 0-901115-05-3..mw-parser-output cite.citationfont-style:inherit.mw-parser-output qquotes:"""""""'""'".mw-parser-output code.cs1-codecolor:inherit;background:inherit;border:inherit;padding:inherit.mw-parser-output .cs1-lock-free abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .cs1-lock-limited a,.mw-parser-output .cs1-lock-registration abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .cs1-lock-subscription abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registrationcolor:#555.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration spanborder-bottom:1px dotted;cursor:help.mw-parser-output .cs1-hidden-errordisplay:none;font-size:100%.mw-parser-output .cs1-visible-errorfont-size:100%.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-formatfont-size:95%.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-leftpadding-left:0.2em.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-rightpadding-right:0.2em
Groves, Norman (1987). Great Northern Locomotive History: Volume 2 1867-95 The Stirling Era. RCTS. ISBN 0-901115-62-2.
Groves, Norman (1990). Great Northern Locomotive History: Volume 3a 1896-1911 The Ivatt Era. Lincoln: RCTS. ISBN 0-901115-69-X.
Groves, Norman (1992). Great Northern Locomotive History: Volume 3b 1911-1922 The Gresley Era. Lincoln: RCTS. ISBN 0-901115-70-3.
External links[edit]
Wikimedia Commons has media related to GNR Class J23 / LNER Class J50. |
- http://www.lner.info/locos/J/j50j51.shtml
- Railu database J50/1
- Railu database J50/2
- Railu database J50/3
Categories:
- 0-6-0T locomotives
- Great Northern Railway (Great Britain) locomotives
- Railway locomotives introduced in 1913
- Scrapped locomotives
- Standard gauge steam locomotives of Great Britain
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