NBR B class

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NBR B Class
LNER Class J35
Craigentinny Carriage Depot geograph-2356315-by-Ben-Brooksbank.jpg
J35 64501 and Gresley K3 2-6-0 No. 61916 leave Craigentinny Carriage Depot 1948
Type and origin
Power type Steam
Designer William Paton Reid
Build date 1906-1913
Total produced 76
 • Whyte 0-6-0
Gauge 4 ft 8 12 in (1,435 mm)
Driver dia. 5 ft 0 in (1.524 m)
Loco weight 51 long tons 0 cwt (114,200 lb or 51.8 t)
Fuel type Coal
Boiler pressure 180 lbf/in2 (1.24 MPa)
Cylinders Two, inside
Cylinder size 17 in × 24 in (432 mm × 610 mm)
Valve gear Stephenson
Performance figures
Tractive effort 22,080 lbf (98.22 kN)
Operators NBR » LNER » BR
Withdrawn 1946-1962

The NBR B Class (LNER Class J35) is a class of 0-6-0 steam locomotive designed by William Paton Reid for freight work on the North British Railway. They were introduced in 1906 and had inside cylinders and Stephenson valve gear. The first eighteen locomotives had piston valves and the remainder had slide valves.


Seventy-six locomotives were built and these passed to the London and North Eastern Railway (LNER) in 1923. The LNER classified them as follows:[1]

  • J35/1 Engines with piston valves
  • J35/2 Engines with piston valves and short fireboxes
  • J35/3 Engines with slide valves

The entire class was fitted with superheaters between 1923 and 1942 and re-classified from 1937 as follows:

  • J35/4 Engines with superheaters and slide valves
  • J35/5 Engines with superheaters and piston valves


Seventy locomotives of classes J35/4 and J35/5 came into British Railways (BR) ownership at nationalisation in 1948 and were numbered as follows:[2]

  • Class J35/5, 64460-64477
  • Class J35/4, 64478-64535


  1. ^ "The Reid J35 (NBR Class B) 0-6-0 Locomotives". Lner.info. Retrieved 2012-02-27. 
  2. ^ Ian Allan ABC of British Railways Locomotives, 1948 edition, part 4, p.29

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