NER Class F

This article is about the 4-4-0 class. For the 4-4-4T class, see NER Class D.

NER Class F
LNER Class D22
Type and origin
Power typeSteam
DesignerNER Class R1
Build date1887-1891
Total produced37
Specifications
Configuration:
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 • Whyte4-4-0
Gauge4 ft 8+1⁄2 in (1,435 mm)
Leading dia.3 ft 7+1⁄4 in (1.099 m)
Driver dia.6 ft 8 in (2.03 m)
Fuel typecoal
Boiler4 ft 6 in (1.37 m) diameter
Boiler pressure160 psi (1.1 MPa)
Cylinderstwo inside
Cylinder size18 in × 24 in (460 mm × 610 mm)
Valve gearStephenson
Performance figures
Tractive effort13,210 lbf (58.8 kN)
Career
OperatorsNorth Eastern Railway
London and North Eastern Railway
DispositionNone preserved

The NER Class F (LNER Class D22) was a class of 4-4-0 steam locomotives of the North Eastern Railway. It was designed by Thomas William Worsdell and introduced in 1887.