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 standard 4 2-6-4T, with similar characteristics to the GWR Manor Class, though unlike the Manors 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 9 inches (229 mm).[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.
The engine weighed 67.90 long tons (68.99 t; 76.05 short tons), was 60 ft 0 in (18.29 m) long, with 5 ft 8 in (1.727 m) diameter driving wheels. It had two cylinders of 18 inches (457 mm) diameter and 28 inches (711 mm) stroke operated at maximum boiler pressure of 225 lbf/in2 (1.55 MPa), to produce 25,515 lbf (113.5 kN) tractive effort. Its British Railways power classification was 4MT.
It normally used the standard BR2 or BR2A tender, which weighed 42.15 long tons (42.83 t; 47.21 short tons) and carried 3,500 imp gal (16,000 L; 4,200 US gal) of water and 6.00 long tons (6.10 t; 6.72 short tons) of coal. In this configuration its route availability was 4, almost universal over the British Railways network.
In serviceedit
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 49.15 long tons (49.94 t; 55.05 short tons), and carried 4,725 imp gal (21,480 L; 5,674 US gal) of water and 7.00 long tons (7.11 t; 7.84 short tons) of coal.[2] This reduced their route availability to 7, the same as the Standard Class 5.
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.
Bachmann and Hornby have both recently 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.[9]
Referencesedit
^Casserley, H.C. (1960). The Observer's Book of Railway Locomotives of Britain. London: Frederick Warne & Co. Ltd. p. 226.
^Duggan, Jamie (29 June 2018). "BR Standard 4s (4-6-0, 2-6-0 and 2-6-4T) steam locomotives - Class Information". RailAdvent. Retrieved 12 September 2022.
^"Severn Valley Railway - BR Riddles 4MT 75069". 5 October 2022.
^"KWVR - BR Standard Class 4MT 4-6-0 75078". February 2022.
^"Watercress Line - BR Standard Class 4MT 75079". 27 January 2022.
^"Mainline's big plans for 1983". Rail Enthusiast. EMAP National Publications. March 1983. pp. 36–7. ISSN 0262-561X. OCLC 49957965.
A Detailed History of BR Standard Steam Locomotives, - Vol 2 - The 4-6-0 and 2-6-0 Classes. RCTS ISBN0-901115-93-2
Bradley, Rodger P. (1984). The Standard Steam Locomotives of British Railways. David & Charles. ISBN0715383841.
External linksedit
Wikimedia Commons has media related to BR Standard Class 4 4-6-0.
Southern E-group photo gallery
75027 webpage at the Bluebell Railway
April 15, 2024
standard, class, british, railways, standard, class, class, steam, locomotives, which, were, built, during, 1950s, have, been, preserved, standard, gloucester, eastgate, april, 1959, type, originpower, typesteamdesignerr, riddlesbuilderbr, swindon, worksbuild,. 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 BR Standard Class 4 4 6 0A Standard 4MT 4 6 0 at Gloucester Eastgate in April 1959 Type and originPower typeSteamDesignerR A RiddlesBuilderBR Swindon WorksBuild dateMay 1951 May 1957Total produced80SpecificationsConfiguration Whyte4 6 0 UIC2 C h2Gauge4 ft 8 1 2 in 1 435 mm Leading dia 3 ft 0 in 0 914 m Driver dia 5 ft 8 in 1 727 m Length60 ft 0 in 18 29 m Width8 ft 9 1 2 in 2 68 m Height13 ft 0 in 3 96 m Axle load17 25 long tons 17 53 t 19 32 short tons Adhesive weight51 55 long tons 52 38 t 57 74 short tons Loco weight67 90 long tons 68 99 t 76 05 short tons Tender weightBR1B 49 15 long tons 49 94 t BR2 BR2A 42 15 long tons 42 83 t Tender typeBR1B 15 BR2 50 BR2A 15 Fuel typeCoalFuel capacityBR1B 7 00 long tons 7 11 t 7 84 short tons BR2 BR2A 6 00 long tons 6 10 t 6 72 short tons Water cap BR1B 4 725 imp gal 21 480 L 5 674 US gal BR2 BR2A 3 500 imp gal 16 000 L 4 200 US gal Firebox Grate area26 7 sq ft 2 48 m2 BoilerBR4Boiler pressure225 psi 1 55 MPa Heating surface Firebox143 sq ft 13 3 m2 Tubes and flues1 301 sq ft 120 9 m2 Superheater Heating area258 sq ft 24 0 m2 CylindersTwo outsideCylinder size18 in 28 in 457 mm 711 mm Performance figuresTractive effort25 515 lbf 113 5 kN Factor of adh 4 52CareerOperatorsBritish RailwaysPower class4MTNumbers75000 75079Axle load classBR1B Route Availability 7 BR2 BR2A Route Availability 4WithdrawnOctober 1964 August 1968Disposition6 preserved remainder scrapped Contents 1 Background 2 In service 3 Preservation 4 Model railways 5 References 6 External linksBackground edit nbsp 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 standard 4 2 6 4T with similar characteristics to the GWR Manor Class though unlike the Manors 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 9 inches 229 mm 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 The engine weighed 67 90 long tons 68 99 t 76 05 short tons was 60 ft 0 in 18 29 m long with 5 ft 8 in 1 727 m diameter driving wheels It had two cylinders of 18 inches 457 mm diameter and 28 inches 711 mm stroke operated at maximum boiler pressure of 225 lbf in2 1 55 MPa to produce 25 515 lbf 113 5 kN tractive effort Its British Railways power classification was 4MT It normally used the standard BR2 or BR2A tender which weighed 42 15 long tons 42 83 t 47 21 short tons and carried 3 500 imp gal 16 000 L 4 200 US gal of water and 6 00 long tons 6 10 t 6 72 short tons of coal In this configuration its route availability was 4 almost universal over the British Railways network In service editThe 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 49 15 long tons 49 94 t 55 05 short tons and carried 4 725 imp gal 21 480 L 5 674 US gal of water and 7 00 long tons 7 11 t 7 84 short tons of coal 2 This reduced their route availability to 7 the same as the Standard Class 5 Table of withdrawals Year Quantity inservice atstart of year Quantitywithdrawn Locomotive numbers1964 80 2 75001 671965 78 11 75000 03 05 07 08 22 25 28 38 72 731966 67 20 75011 14 23 31 36 44 45 49 51 53 54 56 57 63 65 66 69 70 791967 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 781968 10 10 75009 19 21 27 32 34 41 48 62Preservation editSix members of the class survive with both single chimney and double chimney examples Two were purchased directly from BR 75027 amp 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 amp Name Tender Attached Chimney Fitted Built Withdrawn Service life Home Base Owner Livery Status Image Notes75014 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 3 nbsp 75027 May 1954 Aug 1968 14 years 3 months Bluebell Railway Bluebell Railway BR Lined Green Late Crest Static Display 4 nbsp 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 nbsp Withdrawn in 2015 with cracks in firebox overhaul commenced in 2018 5 75069 BR1B Sept 1955 Sept 1966 11 years Severn Valley Railway 75069 Fund BR Lined Black Late Crest Operational Boiler ticket expires 2028 6 nbsp 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 7 nbsp 75079 Jan 1956 Nov 1966 10 years 10 months Mid Hants Railway Mid Hants Railway Preservation Society N A Under restoration 8 nbsp Model railways editBachmann and Hornby have both recently 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 9 References edit Casserley H C 1960 The Observer s Book of Railway Locomotives of Britain London Frederick Warne amp Co Ltd p 226 Duggan Jamie 29 June 2018 BR Standard 4s 4 6 0 2 6 0 and 2 6 4T steam locomotives Class Information RailAdvent Retrieved 12 September 2022 Dartmouth Steam Railway Our Trains Bluebell Railway Locomotives on Static Display NYMR 75029 The Green Knight January 2020 Severn Valley Railway BR Riddles 4MT 75069 5 October 2022 KWVR BR Standard Class 4MT 4 6 0 75078 February 2022 Watercress Line BR Standard Class 4MT 75079 27 January 2022 Mainline s big plans for 1983 Rail Enthusiast EMAP National Publications March 1983 pp 36 7 ISSN 0262 561X OCLC 49957965 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 Bradley Rodger P 1984 The Standard Steam Locomotives of British Railways David amp Charles ISBN 0715383841 External links edit nbsp Wikimedia Commons has media related to BR Standard Class 4 4 6 0 Southern E group photo gallery 75027 webpage at the Bluebell Railway 75079 webpage at the Mid Hants Railway Retrieved from https en wikipedia org w index php title BR Standard Class 4 4 6 0 amp oldid 1203215126, wikipedia, wiki, book, books, library,
