This article is about one of several different Cape Government Railways locomotive types to be designated "6th Class". For the others, see Cape Government Railways 6th Class locomotives.
The South African Railways Class 6F 4-6-0 of 1900 was a steam locomotive from the pre-Union era in the Cape of Good Hope.
CGR 6th Class 4-6-0 1900 South African Class 6F 4-6-0
In 1900, two redesigned 6th Class 4-6-0steam locomotives were placed in service by the Cape Government Railways. In 1912, when they were assimilated into the South African Railways, they were renumbered and designated Class 6F.[1][2][3]
The original 6th Class 4-6-0 passenger steam locomotive was designed at the Salt River works of the Cape Government Railways (CGR) in 1893, at the same time as the 7th Class and both according to the specifications of Michael Stephens, then Chief Locomotive Superintendent of the CGR, and under the supervision of H.M. Beatty, then Locomotive Superintendent of the Western System.[1]
H.M. Beatty
The two 6th Class locomotives which entered service on the CGR in 1900 were built by Sharp, Stewart and Company, numbered 260 and 261 and allocated to the Western System. They were equipped with large commodious cabs, which were to become standard in all subsequent designs. They had larger heating surfaces and grate areas than any of the previous 6th Class locomotives, with the boiler pressure increased to 180 pounds per square inch (1,241 kilopascals) and with larger tenders which rode on bogies. They differed in appearance from all previous 6th Class locomotives by having higher mounted running boards without coupled wheel fairings. They proved to be good engines and were better steamers.[1]
These engines reflected the decision by Beatty, who had succeeded Michael Stephens as Chief Locomotive Superintendent in 1895, to adopt bar frames for future CGR locomotives. He thereby demonstrated that, while still keeping to the good points of the locomotives he had designed under Stephens' supervision, he was preparing to adopt his own ideas in his future locomotive designs.[1]
Class 6 sub-classesEdit
When the Union of South Africa was established on 31 May 1910, the three Colonial government railways (CGR, Natal Government Railways and Central South African Railways) were united under a single administration to control and administer the railways, ports and harbours of the Union. Although the South African Railways and Harbours came into existence in 1910, the actual classification and renumbering of all the rolling stock of the three constituent railways were only implemented with effect from 1 January 1912.[2][4]
When these two locomotives were assimilated into the South African Railways (SAR) in 1912, they were renumbered 604 and 605 and designated Class 6F.[2][5][6]
The rest of the CGR's 6th Class locomotives, together with 6th Class locomotives which had been inherited from the Oranje-Vrijstaat Gouwerment-Spoorwegen (OVGS) via the Imperial Military Railways (IMR) and the Central South African Railways (CSAR), were grouped into thirteen more sub-classes by the SAR. The 4-6-0 locomotives became SAR Classes 6, 6A to 6E, 6G, 6H and 6J to 6L, the 2-6-2 locomotives became Class 6Y and the 2-6-4 locomotives became Class 6Z.[2][5][6]
ServiceEdit
The Class 6 series of locomotives were introduced primarily as passenger locomotives, but when the class became displaced by larger and more powerful locomotive classes, it literally became a Jack-of-all-trades which proved itself as one of the most useful and successful locomotive classes ever to be designed at the Salt River shops. It went on to see service in all parts of the country, except in Natal, and was used on all types of traffic.[1]
The two Class 6F locomotives were placed in service on the Cape mainline. Compared to most of the rest of the Class 6 family, they had a relatively short lifespan of less than thirty years and were withdrawn from service by 1929.[3]
ReferencesEdit
Wikimedia Commons has media related to South African Class 6F 4-6-0.
^ abcdeHolland, D.F. (1971). Steam Locomotives of the South African Railways. Vol. 1: 1859–1910 (1st ed.). Newton Abbott, England: David & Charles. pp. 47–48, 56. ISBN978-0-7153-5382-0.
^ abcdClassification of S.A.R. Engines with Renumbering Lists, issued by the Chief Mechanical Engineer's Office, Pretoria, January 1912, pp. 8, 12, 14, 32 (Reprinted in April 1987 by SATS Museum, R.3125-6/9/11-1000)
^ abPaxton, Leith; Bourne, David (1985). Locomotives of the South African Railways (1st ed.). Cape Town: Struik. p. 43. ISBN0869772112.
^The South African Railways - Historical Survey. Editor George Hart, Publisher Bill Hart, Sponsored by Dorbyl Ltd., Published c. 1978, p. 25.
^ abHolland, D. F. (1972). Steam Locomotives of the South African Railways. Vol. 2: 1910-1955 (1st ed.). Newton Abbott, England: David & Charles. pp. 137–138. ISBN978-0-7153-5427-8.
^ abSouth African Railways and Harbours Locomotive Diagram Book, 2'0" & 3'6" Gauge Steam Locomotives, 15 August 1941, as amended
October 22, 2023
south, african, class, this, article, about, several, different, cape, government, railways, locomotive, types, designated, class, others, cape, government, railways, class, locomotives, south, african, railways, class, 1900, steam, locomotive, from, union, ca. This article is about one of several different Cape Government Railways locomotive types to be designated 6th Class For the others see Cape Government Railways 6th Class locomotives The South African Railways Class 6F 4 6 0 of 1900 was a steam locomotive from the pre Union era in the Cape of Good Hope CGR 6th Class 4 6 0 1900South African Class 6F 4 6 0Ex CGR 6th Class SAR Class 6FType and originPower typeSteamDesignerCape Government Railways H M Beatty BuilderSharp Stewart and CompanySerial number4631 4632ModelCGR 6th ClassBuild date1900Total produced2SpecificationsConfiguration Whyte4 6 0 Tenwheeler UIC2 Cn2Driver2nd coupled axleGauge3 ft 6 in 1 067 mm Cape gaugeLeading dia 28 1 2 in 724 mm Coupled dia 54 in 1 372 mm Tender wheels33 1 2 in 851 mm Wheelbase47 ft 2 1 2 in 14 389 mm Engine20 ft 8 in 6 299 mm Leading5 ft 6 in 1 676 mm Coupled11 ft 4 in 3 454 mm Tender16 ft 1 in 4 902 mm Tender bogie4 ft 7 in 1 397 mm Wheel spacing Asymmetrical 1 2 4 ft 9 in 1 448 mm 2 3 6 ft 7 in 2 007 mm Length Over couplers54 ft 6 5 8 in 16 627 mm Height12 ft 10 in 3 912 mm Frame typeBarAxle load12 LT 7 cwt 12 550 kg Leading10 LT 11 cwt 10 720 kg 1st coupled12 LT 7 cwt 12 550 kg 2nd coupled12 LT 6 cwt 12 500 kg 3rd coupled12 LT 7 cwt 12 550 kg Tender bogieBogie 1 17 LT 14 cwt 17 980 kg Bogie 2 18 LT 14 cwt 19 000 kg Adhesive weight37 LT 37 590 kg Loco weight47 LT 11 cwt 48 310 kg Tender weight36 LT 8 cwt 36 980 kg Total weight83 LT 19 cwt 85 300 kg Tender type2 axle bogiesFuel typeCoalFuel capacity6 LT 6 1 t Water cap 2 780 imp gal 12 600 L Firebox typeRound top Firegrate area18 75 sq ft 1 742 m2 Boiler Pitch6 ft 9 in 2 057 mm Diameter4 ft 7 in 1 397 mm Tube plates11 ft 2 1 8 in 3 407 mm Small tubes182 2 in 51 mm Boiler pressure180 psi 1 241 kPa Safety valveRamsbottomHeating surface1 170 sq ft 109 m2 Tubes1 065 sq ft 98 9 m2 Firebox105 sq ft 9 8 m2 CylindersTwoCylinder size17 in 432 mm bore26 in 660 mm strokeValve gearStephensonCouplersJohnston link and pinPerformance figuresTractive effort18 780 lbf 83 5 kN 75 CareerOperatorsCape Government RailwaysSouth African RailwaysClassCGR 6th Class SAR Class 6FNumber in class2NumbersCGR 260 261SAR 604 605Delivered1900First run1900Withdrawn1929In 1900 two redesigned 6th Class 4 6 0 steam locomotives were placed in service by the Cape Government Railways In 1912 when they were assimilated into the South African Railways they were renumbered and designated Class 6F 1 2 3 Contents 1 Manufacturer 2 Class 6 sub classes 3 Service 4 ReferencesManufacturer EditThe original 6th Class 4 6 0 passenger steam locomotive was designed at the Salt River works of the Cape Government Railways CGR in 1893 at the same time as the 7th Class and both according to the specifications of Michael Stephens then Chief Locomotive Superintendent of the CGR and under the supervision of H M Beatty then Locomotive Superintendent of the Western System 1 nbsp H M BeattyThe two 6th Class locomotives which entered service on the CGR in 1900 were built by Sharp Stewart and Company numbered 260 and 261 and allocated to the Western System They were equipped with large commodious cabs which were to become standard in all subsequent designs They had larger heating surfaces and grate areas than any of the previous 6th Class locomotives with the boiler pressure increased to 180 pounds per square inch 1 241 kilopascals and with larger tenders which rode on bogies They differed in appearance from all previous 6th Class locomotives by having higher mounted running boards without coupled wheel fairings They proved to be good engines and were better steamers 1 These engines reflected the decision by Beatty who had succeeded Michael Stephens as Chief Locomotive Superintendent in 1895 to adopt bar frames for future CGR locomotives He thereby demonstrated that while still keeping to the good points of the locomotives he had designed under Stephens supervision he was preparing to adopt his own ideas in his future locomotive designs 1 Class 6 sub classes EditWhen the Union of South Africa was established on 31 May 1910 the three Colonial government railways CGR Natal Government Railways and Central South African Railways were united under a single administration to control and administer the railways ports and harbours of the Union Although the South African Railways and Harbours came into existence in 1910 the actual classification and renumbering of all the rolling stock of the three constituent railways were only implemented with effect from 1 January 1912 2 4 When these two locomotives were assimilated into the South African Railways SAR in 1912 they were renumbered 604 and 605 and designated Class 6F 2 5 6 The rest of the CGR s 6th Class locomotives together with 6th Class locomotives which had been inherited from the Oranje Vrijstaat Gouwerment Spoorwegen OVGS via the Imperial Military Railways IMR and the Central South African Railways CSAR were grouped into thirteen more sub classes by the SAR The 4 6 0 locomotives became SAR Classes 6 6A to 6E 6G 6H and 6J to 6L the 2 6 2 locomotives became Class 6Y and the 2 6 4 locomotives became Class 6Z 2 5 6 Service EditThe Class 6 series of locomotives were introduced primarily as passenger locomotives but when the class became displaced by larger and more powerful locomotive classes it literally became a Jack of all trades which proved itself as one of the most useful and successful locomotive classes ever to be designed at the Salt River shops It went on to see service in all parts of the country except in Natal and was used on all types of traffic 1 The two Class 6F locomotives were placed in service on the Cape mainline Compared to most of the rest of the Class 6 family they had a relatively short lifespan of less than thirty years and were withdrawn from service by 1929 3 References Edit nbsp Wikimedia Commons has media related to South African Class 6F 4 6 0 a b c d e Holland D F 1971 Steam Locomotives of the South African Railways Vol 1 1859 1910 1st ed Newton Abbott England David amp Charles pp 47 48 56 ISBN 978 0 7153 5382 0 a b c d Classification of S A R Engines with Renumbering Lists issued by the Chief Mechanical Engineer s Office Pretoria January 1912 pp 8 12 14 32 Reprinted in April 1987 by SATS Museum R 3125 6 9 11 1000 a b Paxton Leith Bourne David 1985 Locomotives of the South African Railways 1st ed Cape Town Struik p 43 ISBN 0869772112 The South African Railways Historical Survey Editor George Hart Publisher Bill Hart Sponsored by Dorbyl Ltd Published c 1978 p 25 a b Holland D F 1972 Steam Locomotives of the South African Railways Vol 2 1910 1955 1st ed Newton Abbott England David amp Charles pp 137 138 ISBN 978 0 7153 5427 8 a b South African Railways and Harbours Locomotive Diagram Book 2 0 amp 3 6 Gauge Steam Locomotives 15 August 1941 as amended Retrieved from https en wikipedia org w index php title South African Class 6F 4 6 0 amp oldid 1126750750, wikipedia, wiki, book, books, library,
