GWR 5400 Class

Class of 25 two-cylinder locomotives From Wikipedia, the free encyclopedia

The Great Western Railway (GWR) 5400 Class was a class of 0-6-0 pannier tank steam locomotive. They were similar in appearance to many other GWR tank engines but smaller than the ubiquitous GWR 5700 Class.

Power typeSteam
Power typeSteam
DesignerCharles Collett
BuilderGWR Swindon Works
Quick facts Type and origin, Power type ...
GWR 5400 Class
5405 at Old Oak Common TMD in 1947
Type and origin
Power typeSteam
DesignerCharles Collett
BuilderGWR Swindon Works
Order numberLots 277 (part), 301
Build date1930–1932, 1935[1]
Total produced25[1]
Specifications
Configuration:
​
 • Whyte0-6-0PT
Gauge4 ft 8+1⁄2 in (1,435 mm) standard gauge
Driver dia.5 ft 2 in (1.575 m)[1]
Minimum curve
  • 4 chains (264 ft; 80 m) normal
  • 3.5 chains (231 ft; 70 m) slow[2]
Wheelbase14 ft 8 in (4.47 m)[3]
LengthOver buffers: 31 ft 1 in (9.47 m)[4]
Width8 ft 7 in (2.616 m)[4]
Height12 ft 6+3⁄16 in (3.815 m)[4]
Frame type
  • Type: Inside
  • Length: 26 ft 5 in (8.05 m)[4]
Axle load15 long tons 12 cwt (34,900 lb or 15.9 t)
(17.5 short tons)[3]
Loco weight46 long tons 12 cwt (104,400 lb or 47.3 t)
(52.2 short tons) full[3]
Fuel typeCoal
Fuel capacity3 long tons 4 cwt (7,200 lb or 3.3 t)
(3.6 short tons)[3]
Water cap.1,100 imp gal (5,000 L; 1,300 US gal)[3]
Firebox:​
 • Grate area16.76 sq ft (1.557 m2)[3]
Boiler:
​
 • ModelGWR Standard No. 21[5]
 • Pitch7 ft 0 in (2.13 m)[3]
 • DiameterOutside diameter: 4 ft 3 in (1.30 m) & 4 ft 2+1⁄8 in (1.273 m)
 • Tube platesBarrel: 10 ft 6 in (3.20 m)
Boiler pressure165 psi (1.14 MPa)[1]
Heating surface:​
 • Firebox81.8 sq ft (7.60 m2)[3]
 • Tubes1,004.2 sq ft (93.29 m2)[3]
 • Total surface1,086.0 sq ft (100.89 m2)[3]
Cylinderstwo inside
Cylinder size16+1⁄2 in × 24 in (419 mm × 610 mm)[3]
Train heatingSteam from locomotive boiler
Loco brakesteam
Train brakesvacuum
Safety systemsATC[3]
Performance figures
Tractive effort14,780 lbf (65.7 kN)[3]
Career
OperatorsGreat Western Railway • British Railways
Power class
Numbers5400–5424[3]
Axle load classGWR: Yellow[3]
LocaleWestern Region
Withdrawn1956–1963[6]
DispositionAll scrapped
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The nominally Collett-designed 5400 Class had 5 ft 2 in (1.575 m) driving wheels for greater top speed with autocoaches, and were all fitted with the required remote control gear for working the push-pull autotrains. They had a modern cab and a larger bunker. They were frequently seen on inner suburban routes from Paddington.

History

The 5400 class was related to the GWR 2021 Class saddle tank, designed by William Dean and built at Wolverhampton railway works. This was a light, compact design with 4 ft 1+1⁄2 in (1.257 m) wheels, itself derived from the smaller Armstrong GWR 850 Class dating from 1874.

The prototype was not a new engine, being rebuilt from 2021 Class No. 2062 in 1930. It was given larger wheels, splashers and coal bunker, and the new units from 1931 onwards had the rounded-edge cab as well. This cab style was to be fitted to all subsequent GWR pannier tank designs, including the later derivations of the 5700 Class.

Despite its success, the prototype, No. 5400, had a short life, lasting only two years before being scrapped. It was used as a parts donor for an all-new engine with the same number. 25 locomotives were built and they were numbered 5400–5424.

More information Year, Quantity ...
Table of orders and numbers[7]
YearQuantityLot No.Locomotive numbersNotes
1930–32202775400–5419
193553015420–5424
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Withdrawal and mileages

Withdrawal from service with BR started in 1957 and was completed in 1963.[6] The last ones in service were No. 5410, No. 5416, and No. 5420.[8]

More information Year, Numbers ...
Withdrawal of 5400s from BR
Year 1956 1957 1958 1959 1960 1961 1962 1963
Numbers 1 7 3 5 3 1 2 3
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le Fleming noted that the mileages of those withdrawn between February 1957 and February 1958 were "from 671,000 to 775,000".[3]

GWR 6400 and 7400 classes

6400 Class locomotive 6424 at Kidderminster in 1963

The GWR 6400 Class and 7400 Class that followed were closely related, fundamentally differing only in wheel size – 4 ft 7+1⁄2 in (1.410 m) – and, in the case of the 74xx, a higher boiler pressure of 180 psi (1.2 MPa). This produced two general purpose classes with wide route availability. The 6400 was auto-fitted but more suitable for hilly routes than the 5400. The 7400 was not auto-fitted.

See also

  • GWR 0-6-0PT – list of classes of GWR 0-6-0 pannier tank, including table of preserved locomotives

References

Sources

External links

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