BR Standard Class 4 4-6-0

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search

Template:Short description Template:Use dmy dates Template:Use British English Script error: No such module "Infobox".Template:Template otherScript error: No such module "Check for unknown parameters". The British Railways Standard Class 4 4-6-0 is a class of steam locomotives, 80 of which were built during the 1950s. Six have been preserved.

Background

File:Riddles 75076 (8164960266).jpg
75076 with a double chimney and BR1B type tender.

The class was introduced in 1951. They were designed for mixed traffic use on secondary routes where the otherwise ubiquitous BR Standard Class 5 and their predecessors, the Black Fives, would be too heavy. They were essentially a tender version of the Class 4 2-6-4T, with similar characteristics to the GWR 7800 Class, though unlike the 7800s they were built to the universal loading gauge. They used the same running gear as the tank engine (with the leading bogie from the Standard Class 5), and substantially the same firebox, smokebox and boiler, although the boiler barrel was increased in length by Template:Convert.[1]

Design work was done at Brighton by R. A. Riddles, with help from Swindon, Derby and Doncaster. Construction was at the BR Swindon Works.[2]

The engine weighed Template:Convert, was Template:Convert long, with Template:Convert diameter driving wheels. It had two cylinders of Template:Convert diameter and Template:Convert stroke operated at maximum boiler pressure of Template:Convert, to produce Template:Convert tractive effort. Its British Railways power classification was 4MT.

It normally used the standard BR2 or BR2A tender, which weighed Template:Convert and carried Template:Convert of water and Template:Convert of coal. In this configuration its route availability was 4, almost universal over the British Railways network.

In service

The class was initially allocated to the London Midland Region (45) and the Western Region (20). The last 15 were allocated to the Southern Region. The Southern batch were built with BR1B tenders, which weighed Template:Convert, and carried Template:Convert of water and Template:Convert of coal.[3] This reduced their route availability to 7, the same as the Standard Class 5.

Table of withdrawals
Year Quantity in
service at
start of year		 Quantity
withdrawn		 Locomotive numbers
1964 80 2 75001/67
1965 78 11 75000/03/05/07–08/22/25/28/38/72–73
1966 67 20 75011/14/23/31/36/44–45/49–51/53–54/56–57/63/65–66/69–70/79
1967 47 37 75002/04/06/10/12–13/15–18/24/26/29–30/33/35/37/39–40/42–43/46–47/52/55/58–61/64/68/71/74–78
1968 10 10 75009/19–21/27/32/34/41/48/62

Preservation

Six members of the class survive with both single chimney and double chimney examples. Two were purchased directly from BR (75027 & 75029); the remaining four were rescued from Woodham Brothers' scrapyard at Barry Island.

No member of the class is presently main line approved but three (75014, 75029 and 75069) have worked on the main line at various points in preservation. 75029 was passed to work on the main line between Grosmont and Whitby with occasional visits to Battersby during galas. All except for 75079 have operated in preservation.

Preserved locomotives
Number & Name Tender Attached Chimney Fitted Built Withdrawn Service life Home Base Owner Livery Status Image Notes
75014 "Braveheart" BR2A Single Nov 1951 Dec 1966 15 years, 30 days Dartmouth Steam Railway Dartmouth Steam Railway BR Lined Black, Early Emblem Operational. Boiler ticket expires: 2026 [4] File:BR Standard Class 4 75014 Braveheart Toddington Railway Station.jpg
75027 May 1954 Aug 1968 14 years, 3 months Bluebell Railway Bluebell Railway BR Lined Green, Late Crest Static Display [5] File:75027 Bluebell railway.jpg
75029 "The Green Knight" Double May 1954 Aug 1967 13 years, 3 months North Yorkshire Moors Railway North Yorkshire Moors Railway BR Lined Green, Late Crest Under Overhaul. File:75029 at Grosmont (1).jpg Withdrawn in 2015 with cracks in firebox, overhaul commenced in 2018 [6]
75069 BR1B Sept 1955 Sept 1966 11 years Severn Valley Railway 75069 Fund BR Lined Black, Late Crest Operational. Boiler ticket expires: 2028 [7] File:Standard class 4MT 75069 at Hastings, Ashford 150.jpg
75078 Jan 1956 Jul 1966 10 years, 5 months Keighley and Worth Valley Railway The Standard 4 Locomotive Preservation Society BR Lined Black, Late Crest Operational. Boiler ticket expires: 2032 [8] File:Keighley and Worth Valley Railway near Haworth - geograph.org.uk - 624800.jpg
75079 Jan 1956 Nov 1966 10 years, 10 months Mid-Hants Railway Mid-Hants Railway Preservation Society N/A Under restoration [9] File:BR Standard Class 4 4-6-0 75079 At Ropley.jpg

Model railways

Bachmann and Hornby have both released models of these engines in 00 gauge. Mainline Railways also released a OO gauge model of the Standard Class 4MT 4-6-0 in the 1970s, although this is no longer in production. In 1983, Mainline's model was reintroduced to their catalogue as locomotive 75033 in BR lined black.[10]

References

Template:Reflist

External links

Template:Sister project

Script error: No such module "Navbox". Template:Authority control

  1. ↑ Script error: No such module "citation/CS1".
  2. ↑ Template:Cite magazine
  3. ↑ Script error: No such module "citation/CS1".
  4. ↑ Script error: No such module "citation/CS1".
  5. ↑ Script error: No such module "citation/CS1".
  6. ↑ Script error: No such module "citation/CS1".
  7. ↑ Script error: No such module "citation/CS1".
  8. ↑ Script error: No such module "citation/CS1".
  9. ↑ Script error: No such module "citation/CS1".
  10. ↑ Template:Cite magazine
Retrieved from "http://debianws.lexgopc.com/wiki143/index.php?title=BR_Standard_Class_4_4-6-0&oldid=972307"