LNWR Class G2

LNWR Class G2
LMS No. 9447 in photographic grey livery
Type and origin
Power typeSteam
DesignerBeames
Build date1921-1922
Total produced60
Specifications
Configuration:
 • Whyte0-8-0
 • UICD h2
Gauge4 ft 8+12 in (1,435 mm)
Driver dia.4 ft 5+12 in (1.359 m)
Loco weight62 long tons 0 cwt (138,900 lb or 63 t)
Total weight102 long tons 16 cwt (230,300 lb or 104.4 t)
Fuel typeCoal
Fuel capacity6 long tons 0 cwt (13,400 lb or 6.1 t)
Water cap.3,000 imp gal (14,000 L; 3,600 US gal)
Boiler pressure175 psi (1.21 MPa)
Cylinders2 inside
Cylinder size20.5 in × 24 in (521 mm × 610 mm)
Valve gearJoy
Valve typePiston valves
Loco brakeSteam
Train brakesVacuum
Performance figures
Tractive effort28,040 lbf (124.73 kN)
Career
OperatorsLNWR » LMS » BR
Power classBR, 7F
NicknamesSuper D
Withdrawn1959-1964
Disposition1 preserved, remainder scrapped

The London and North Western Railway (LNWR) Class G2 is a class of 0-8-0 steam locomotives. 60 were built at Crewe Works in 1921–1922. Uniquely amongst classes of LNWR 8-coupled tender engines, they were not rebuilt from or into other classes. Somewhat confusingly, the LNWR Class G2a is sometimes considered a subclass, but not in this article. They were classified by the London, Midland and Scottish Railway (LMS) as 5, from 1928 7F.