BR standard class 5
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73086 The Green Knight on the ashpits at Nine Elms 1965. Note the hand-painted smokebox number |
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Power type | Steam |
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Designer | R. A. Riddles |
Builder | British Railways |
Build date | 1951 |
Total production | 172 |
Configuration | 4-6-0 |
Gauge | 4' 8½" (1435mm) |
Driver size | 6' 2" |
Locomotive weight | 76 tons 4 cwt |
Fuel type | coal |
Boiler pressure | 225 psi |
Cylinders | two outside |
Cylinder size | 19" x 28" |
Tractive effort | 26,120 lbf |
Class | 5MT |
The British Railways Standard Class 5MT 4-6-0 was one of the standard classes of steam locomotives built by British Railways in the 1950s. 172 were built, essentially being a development of the LMS black five.
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[edit] Background
William Stanier's black five had been the most successful mixed-traffic type in Great Britain. Construction of the black fives had started in 1934 and continued past nationalisation to 1951. A new set of standard locomotives was to be built by British Railways, based on LMS designs and incorporating modern ideas.
[edit] Design and construction
The design work was done at ex-LNER works at Doncaster but the bulk of the construction was done at Derby. The locomotive featured a Type 3B boiler almost identical to the black fives'. A higher running plate and slightly enlarged driving wheels from 6' to 6' 2" and a standard cab were the most obvious visible changes.
The first of the class, 73000 was outshopped from Derby in April 1951 and 30 were in service by January 1952. There was then a gap in construction before Derby resumed building its remaining 100 engines. 42 were built at Doncaster, starting in August 1955 and finishing in May 1957 with Derby's last engine following a month later.
Thirty engines, numbers 73125 to 73154 were built with Caprotti valve gear and poppet valves.
[edit] In service
In 1959, 20 of the Southern Region locomotives were named after SR King Arthur class locos that were then being withdrawn. These were:
- 73080 Merlin
- 73081 Excalibur
- 73082 Camelot
- 73083 Pendragon
- 73084 Tintagel
- 73085 Melisande
- 73086 The Green Knight
- 73087 Linette
- 73088 Joyous Guard
- 73089 Maid of Astolat
- 73110 The Red Knight
- 73111 King Uther
- 73112 Morgan Le Fay
- 73113 Lyonnesse
- 73114 Etarre
- 73115 King Pellinore
- 73116 Iseuit
- 73117 Vivien
- 73118 King Leodegrance
- 73119 Elaine
A Standard Class 5MT, No. 45318, hauled the last ever steam-hauled standard-gauge regular service on British Rail; the service being the 21:25 Preston-Liverpool on Saturday, August 3rd, 1968.
[edit] Preservation
Five have survived. These are:
Number | Name | Home | Notes | Link to database |
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73050 | - | Nene Valley Railway | Named City of Peterborough | database |
73082 | Camelot | Bluebell Railway | In early stages of overhaul | database |
73096 | - | Mid Hants Railway | Operational | database |
73129 | - | Midland Railway Butterley | Caprotti Valve Geared locomotive | database |
73156 | - | Great Central Railway | database |
[edit] References
- A Detailed History of BR Standard Steam Locomotives, - Vol 2 - The 4-6-0 and 2-6-0 Classes. RCTS ISBN 0-901115-93-2
- Henry the Green Engine.
[edit] External links
- Southern E-group photo gallery
- http://www.midlandrailwaycentre.co.uk/73129/page1.html Website for 73
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