On the GNR, both varieties were classified J23, but the LNER divided them into J51 with smaller boilers, and J50 with larger boilers. [5] They were unsuperheated, although the prototype J51 (3167) was fitted with a 16-element Robinson superheater as a trial. The savings from this were small, 3.7%, and not considered worthwhile.

Gresley designed the Great Northern Railway (GNR) Class J23 (LNER J51) 0-6-0T in 1913 for working the steeply graded lines in the West Riding. Designed to replace the J3, J4, and J7 tender locomotives, an 18.5in cylinder diameter was chosen to produce a greater power output.

These were smaller Gresley GNR locomotives which were rebuilt from 1929 as J50 engines. The J50/2 was a Gresley design for the GNR. They were built in 1914-24 and also incorporated twenty rebuilt from J51 locomotives between 1915 and 1922.

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...

Class J50. Class Details Gresley design, GNR class J23. Weight: 56-8 tons; Pressure: 175psi; Cyls: 18 x26; DW: 4ft 8; TE: 23,635 lbs (4F). (3)157-(3)220 (30 engines) originally built with 4ft 8 boilers and became LNER class J51, but were rebuilt with 4ft 5 boilers and reclassified J50.

The 0-6-0 Tank Locomotive Classes J50 - J71. Though heavily outnumbered by its tender counterpart, the 0-6-0T was a popular type in Britain, especially for shunting but also for freight work, branch passenger services and even suburban passenger duties. New construction continued well into British Railways days.

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. They were given the nickname "Submarines" due to their long tanks. 1.

2022年10月1日 · Gresley designed the Great Northern Railway (GNR) Class J23 (LNER J51) 0-6-0T in 1913 for working the steeply graded lines in the West Riding. Designed to replace the J3, J4, and J7 tender locomotives, an 18.5in cylinder diameter was …

221 Class (LNER J50) built with larger boilers. Further examples were built after Grouping. Four J50s had their boilers changed at Stratford. These are indicated by the suffix S after the date. 157 and 168 Classes (LNER J51) made use of redundant boilers from Class L1 after the latter received larger diameter boilers.