Южноафриканский тип EW1 тендер
 Тип EW1 Tender Off Class 25nc, 2009 | |||||||||||||||||||||||||||||||||
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Южноафриканский тендер EW1 представлял собой паровой локомотив.
Тендеры типа EW1 вступили в службу в период между 1953 и 1955 годами в качестве тендеров на паровые локомотивы северного типа класса 25-8-4 вступили в службу на южноафриканских железных дорогах . северного типа, которые в эти годы [ 1 ] [ 2 ]
Производители
[ редактировать ]Тендеры типа EW1 были построены в 1953 году, одиннадцать от North British Locomative Company и 39 от Henschel и Son . [ 1 ]
Южноафриканские железные дороги (SAR) поместили в эксплуатацию локомотивов класса 25NC в период с 1953 по 1955 год. Локомотив и тендер были разработаны LC Grubb, главным инженером-механиком SAR с 1949 по 1954 год. Это была неконтенсирующая версия класса . 25 Конденсация локомотива, из которого девяносто были помещены в эксплуатацию одновременно. [ 1 ] [ 3 ] [ 4 ] [ 5 ]
Characteristics
[edit]The tender rode on six-wheeled bogies, each with a 10 feet (3,048 millimetres) wheelbase and fitted with Timken roller bearings. It was equipped with a mechanical stoker, of which the engine was mounted on the tender. The tank had a water capacity of 10,500 imperial gallons (47,700 litres) and the coal bunker a capacity of 18 long tons (18.3 tonnes). The tender had a one-piece steel casting water-bottom frame, with the frame itself forming the bottom of the tank instead of being a separate tank and frame as in previous designs. The casting was done by Commonwealth Steel Castings Corporation in the United States of America.[1][2][3]
Locomotive
[edit]Only Class 25NC locomotives were delivered new with Type EW1 tenders, which were numbered in the range from 3401 to 3450 for their engines. An oval number plate, bearing the engine number and often also the locomotive class and tender type, was attached to the rear end of the tender.[1][3]
Classification letters
[edit]Since many tender types are interchangeable between different locomotive classes and types, a tender classification system was adopted by the SAR. The first letter of the tender type indicates the classes of engines to which it could be coupled. The "E_" tenders were arranged with mechanical stokers and could be used with the locomotive classes as shown.[2]
- Class 15F, if equipped with a mechanical stoker.
- Class 23.
- Class 25NC.
- Class 26.
The second letter indicates the tender's water capacity. The "_W1" tenders had a capacity of 10,500 imperial gallons (47,700 litres; 12,600 US gallons).[2]
Modification
[edit]Between 1979 and 1981, the last one of the Class 25NC locomotives, no. 3450, was rebuilt to the sole Class 26 Red Devil. The coal capacity of this locomotive's Type EW1 tender was increased from 18 long tons (18.3 tonnes) to approximately 20 long tons (20.3 tonnes) by raising the bunker sides. Since the water capacity remained unchanged, the tender was not reclassified.[6]
A number, when added after the letter code, indicates differences between similar tender types, such as function, wheelbase or coal bunker capacity.[2]
Illustration
[edit]-
Type EW1 rear end, 2009 -
Type EW1 showing stoker worm, 2009 -
Raised bunker sides, Red Devil, 2010
References
[edit]- ^ Jump up to: a b c d e Holland, D. F. (1972). Steam Locomotives of the South African Railways. Vol. 2: 1910-1955 (1st ed.). Newton Abbott, England: David & Charles. p. 110. ISBN 978-0-7153-5427-8.
- ^ Jump up to: a b c d e South African Railways & Harbours/Suid Afrikaanse Spoorweë en Hawens (15 Aug 1941). Locomotive Diagram Book/Lokomotiefdiagramboek, 2'0" & 3'6" Gauge/Spoorwydte, Steam Locomotives/Stoomlokomotiewe. SAR/SAS Mechanical Department/Werktuigkundige Dept. Drawing Office/Tekenkantoor, Pretoria. pp. VIII, 6a-7a, 20-21, 28-28A.
- ^ Jump up to: a b c Paxton, Leith; Bourne, David (1985). Locomotives of the South African Railways (1st ed.). Cape Town: Struik. pp. 77–78. ISBN 0869772112.
- ^ North British Locomotive Company works list, compiled by Austrian locomotive historian Bernhard Schmeiser
- ^ Henschel-Lieferliste (Henschel & Son works list), compiled by Dietmar Stresow
- ^ South Africa's 'Red Devil' (Accessed on 28 July 2016)
