NER Class O

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NER Class O
LNER Class G5
Ex-NER 0-4-4T in Stratford Locomotive Shed yard, 1946 (geograph 4800336).jpg
Ex-NER 0-4-4T in Stratford Locomotive Shed yard, 1946.
Type and origin
Power type Steam
Designer Wilson Worsdell
Build date 1894-1901
Total produced 110
 • Whyte 0-4-4T
Gauge 4 ft 8 12 in (1,435 mm)
Driver dia. 5 ft 1.25 in (1.556 m)
Loco weight 54.2 long tons (55.1 t)
Fuel type coal
Boiler pressure 160 psi (1,100 kPa)
Cylinders two inside
Cylinder size 18 in × 24 in (460 mm × 610 mm)
Performance figures
Tractive effort 17,265 lbf (76.80 kN)
Withdrawn 1950-1958
Disposition All original locomotives scrapped. One replica being constructed.

The NER Class O (LNER Class G5) was a class of 0-4-4T steam locomotives of the North Eastern Railway,[1][2] designed by the company's Chief Engineer, Wilson Worsdell.[2] They all survived into British Railways ownership in 1948 and their BR numbers were 67240-67349. They were withdrawn between 1950 and 1958.

Accidents and incidents[edit]

In July 1957, locomotive No. No. 67338 was used for a series of tests into the performance of concrete sleepers when trains were derailed. These tests took place between Halifax and Keighley, Yorkshire.[3]


None of the G5s was preserved, although a new build is in the works at Shildon.[4]It will be built for use on various heritage lines.


  1. ^ Ian Allan ABC of British Railways Locomotives, part 4 (1948 ed.). p. 44. 
  2. ^ a b "The G5 (NER Class O) 0-4-4T Tank Locomotives". The London & North Eastern Railway (LNER) Encyclopedia. 
  3. ^ Hoole, Ken (1983). Trains in Trouble. Vol. 4. Redruth: Atlantic Books. p. 44. ISBN 0 906899 07 9. 
  4. ^ "Class G5 Locomotive Company".