GWR 3150 Class

GWR 3150 Class [1]
3171 at Gloucester (Horton Road) Depot 1948
Type and origin
Power typeSteam
DesignerGeorge Jackson Churchward
BuilderGWR Swindon Works
Order numberLots 159, 169, 172
Serial number2157, 2239–2258, 2280–2299
Build date1906–1908
Total produced41
Specifications
Configuration:
​
 • Whyte2-6-2T
Gauge4 ft 8+1⁄2 in (1,435 mm) standard gauge
Leading dia.3 ft 2 in (0.965 m)
Driver dia.5 ft 8 in (1.727 m)
Trailing dia.3 ft 8 in (1.118 m)
Length41 ft 0 in (12.50 m) over buffers
Loco weight64 long tons 13 cwt (144,800 lb or 65.7 t)
(65.7 t; 72.4 short tons) empty
81 long tons 12 cwt (182,800 lb or 82.9 t)
(82.9 t; 91.4 short tons) full
Fuel typeCoal
Water cap.2,000 imp gal (9,100 L; 2,400 US gal)
Firebox:​
 • Grate area20.56 sq ft (1.910 m2)
BoilerGWR Standard No. 4
Boiler pressure200 lbf/in2 (1.38 MPa)
Heating surface:​
 • Firebox128.72 sq ft (11.958 m2)
 • Tubes1,349.64 sq ft (125.386 m2)
CylindersTwo, outside
Cylinder size18+1⁄2 in × 30 in (470 mm × 762 mm)
Valve gearStephenson
Valve typePiston valves
Train brakesVacuum
Performance figures
Tractive effort25,670 lbf (114.2 kN)
Career
Power class4MT
Number in class41
Numbers3150-3190
First run1907

The Great Western Railway (GWR) 3150 Class was a class of 2-6-2T side tank steam locomotive.

History

Churchward based the 3150 class on his 3100 (later 5100) class. They used the larger and heavier Standard 4 boiler and so had greater boiler capacity, but were consequently heavier and thus restricted to Red routes. They were principally heavy suburban passenger traffic engines. Five of the class were rebuilt into the Collett 3100 Class. None of the class were preserved.

Table of orders and numbers[2]
Year Quantity Lot No. Works Nos. Locomotive numbers Notes
1906 1 159 2157 3150
1907 20 169 2239–2258 3151–3170
1907–08 20 172 2280–2299 3171–3190

See also

References

  1. ^ GWR Engines - Names, Numbers, Types, Classes, ETC. of Great Western Railway Locomotives. Great Western Railway. 1938. p. 70.
  2. ^ Allcock et al. (1968), pp. 30–31.
  • Allcock, N. J.; Davies, F. K.; le Fleming, H. M.; Maskelyne, J. N.; Reed, P. J. T.; Tabor, F. J. (1968) [1951]. White, D. E. (ed.). The Locomotives of the Great Western Railway, part one: Preliminary Survey. Kenilworth: RCTS.


Stub icon

This article relating to steam locomotives operated in the United Kingdom is a stub. You can help Wikipedia by expanding it.