GNR Stirling 4-2-2

GNR No. 1 class 4-2-2
Stirling Single
GNR 1008
Type and origin
Power typeSteam
DesignerPatrick Stirling
BuilderDoncaster Works
Build date1870-1895
Total produced53
Specifications
Configuration:
 • Whyte4-2-2
Gauge4 ft 8+12 in (1,435 mm) standard gauge
Leading dia.3 ft 11.5 in (1.207 m)
Driver dia.8 ft 1 in (2.464 m)
Trailing dia.1870 series: 4 ft 1 in (1.245 m)
1884 and 1894 series: 4 ft 7.5 in (1.410 m)
Length50 ft 7 in (15.42 m)
Loco weight1870 series: 39.45 long tons (40.08 t; 44.18 short tons)
1884 series: 45.15 long tons (45.87 t; 50.57 short tons)
1894 series: 48.75 long tons (49.53 t; 54.60 short tons)
Fuel typeCoal
Water cap.2,500 imp gal (11,000 L; 3,000 US gal)
Boiler pressure1870 series: 140 psi (970 kPa)
1884 series: 160 psi (1,100 kPa)
1894 series: 170 psi (1,200 kPa)
Cylinderstwo, outside
Cylinder size1870 and 1884 series: 18 in × 28 in (457 mm × 711 mm)
1894 series: 19.5 in × 28 in (495 mm × 711 mm)
Performance figures
Tractive effort1870 series: 11,129 lbf (49.50 kN)
1884 series: 12,719 lbf (56.58 kN)
1894 series: 15,680 lbf (69.75 kN)
Career
OperatorsGreat Northern Railway
ClassA1, A2, A3
Nicknames
  • Stirling Single
  • Eight–footer
Withdrawn1899-1916
PreservedNo. 1
Current ownerNational Collection
DispositionOne preserved, remainder scrapped

The Great Northern Railway (GNR) No. 1 class Stirling Single is a class of steam locomotive designed for express passenger work. Designed by Patrick Stirling, they are characterised by a single pair of large (8 ft 1 in) driving wheels which led to the nickname "eight-footer". Originally the locomotive was designed to haul up to 26 passenger carriages at an average speed of 47 miles per hour (76 km/h).[1] They could reach speeds of up to 85 mph (137 km/h).[2]

  1. ^ Maw, W. H.; Dredge, J., eds. (24 February 1871). "Express Locomotive G. N. R." Engineering. XI: 140.
  2. ^ Black, Stuart (23 February 2017). Loco Spotter's Guide. Bloomsbury Publishing. p. 19. ISBN 9781472820495. Retrieved 20 October 2020.