GWR 2251 Class

The Great Western Railway (GWR) 2251 Class was a class of 0-6-0 steam tender locomotive designed for medium-powered freight. They were introduced in 1930 as a replacement for the earlier Dean Goods 0-6-0s and built up to 1948.[1]

GWR 2251 Class
2242 at Tramway Junction, Gloucester
Type and origin
Power typeSteam
DesignerCharles Collett
BuilderGWR Swindon Works
Build date1930–1948
Total produced120
Specifications
Configuration:
​
 • Whyte0-6-0
 • UICC h2
Gauge4 ft 8 1⁄2 in (1,435 mm) standard gauge
Driver dia.5 ft 2 in (1.575 m)
Minimum curve4 1⁄2 chains (297 ft; 91 m) normal,
4 chains (264 ft; 80 m) slow
Length53 ft 8 1⁄4 in (16.36 m)
Width8 ft 5 in (2.565 m)
Height12 ft 8 1⁄2 in (3.874 m)
Axle load15 long tons 15 cwt (35,300 lb or 16 t)
(17.6 short tons) full
Loco weight43 long tons 8 cwt (97,200 lb or 44.1 t)
(48.6 short tons) full
Tender weight36 long tons 15 cwt (82,300 lb or 37.3 t)
(41.2 short tons) full
Fuel typeCoal
Fuel capacity5 long tons 0 cwt (11,200 lb or 5.1 t)
(5.6 short tons)
Water cap3,000 imp gal (14,000 l; 3,600 US gal)
Firebox:
 • Firegrate area		17.40 sq ft (1.617 m2)
Boiler pressure200 lbf/in2 (1.38 MPa)
Heating surface:
 • Tubes		1,069 sq ft (99.3 m2)
 • Firebox102 sq ft (9.5 m2)/
Superheater:
​
 • Type4-element or 6-element
 • Heating area4-element: 52.98 sq ft (4.922 m2),
6-element: 70.00 sq ft (6.503 m2)
CylindersTwo, inside
Cylinder size17.5 in × 24 in (444 mm × 610 mm)
Performance figures
Tractive effort20,155 lbf (89.65 kN)
Career
OperatorsGWR » BR
Power classGWR: B,
BR: 3MT
Numbers2251–2299, 2200–2250, 3200–3219
Axle load classYellow
Withdrawn1958–1965
DispositionOne preserved, remainder scrapped

Overview

In many ways, the 2251s were modernised Dean Goods, sharing the main dimensions, but having more modern features such as taper boilers and full cabs. Increases in both boiler pressure and heating surface gave a useful increase in power at the expense of weight that restricted permitted routes. Numbers 2211–2230, built in 1940 did not have side windows. Designed by Charles Collett for medium freight and passenger duties they had 5 ft 2 in (1.575 m) driving wheels. Carrying a maximum of 3,000 imperial gallons (14,000 l; 3,600 US gal) of water to fuel a boiler operating at 200 psi (1.4 MPa) they developed 20,155 lbf (89.65 kN) of tractive effort. They could be found operating on most parts of the former GWR system. These were the first GWR 0-6-0 to use the standard number 10 boiler as later fitted to the 94xx, 15xx and various rebuilds of absorbed mainly Welsh locomotives.

They were withdrawn between 1958 and 1965.

Preservation
Preserved 3205 on the South Devon Railway.

One, 3205, has been preserved and is located on the South Devon Railway in Devon.[2]

Models

Bachmann Branchline manufactures models of the 2251 in OO gauge. Mainline (Palitoy) released the first ready-to-run OO model in 1978. The Bachmann model was released in 1996. It is based on the Mainline model with revised body tooling to complement a completely new chassis design that allows the boiler backhead to be modelled.

In N gauge, the first model was the langley whitemetal kit, designed to fit the graham farish 94xx/general purpose tank chassis. The next was the Peco (model railroads) ready to run model. This was a big step forward, and was DCC fitted as standard. Production of these stopped around 2010. The next model of the class was made by Union Mills, and was released in 2017.

In 3mm/TT scale , BEC produced a whitemetal kit body for the Tri-ang jinty chassis, though this is long discontinued.

References
  1. "Digital Traction GWR Collett 0-6-0 '2251' Class". Steam Sounds Supreme. Retrieved 13 September 2017.
  2. "GWR 0-6-0 No 3205". South Devon Railway. Retrieved 14 September 2019.
  • Whitehurst, Brian (1973). Great Western Engines, Names, Numbers, Types and Classes (1940 to Preservation). Oxford, UK: Oxford Publishing Company. pp. 23–24, 30, 102, 127. ISBN 978-0-9028-8821-0. OCLC 815661.
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