South African type YC tender
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Type YC tender on CGR 6th Class of 1896
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The South African type YC tender was a steam locomotive tender from the pre-Union era in the Cape of Good Hope.
The Type YC tender first entered service in 1896, as tenders to the second version of the 6th Class 4-6-0 Tenwheeler type steam locomotives to be acquired by the Cape Government Railways. These locomotives were designated Class 6A on the South African Railways in 1912.[1][2][3]
Manufacturers
Type YC tenders were built between 1896 and 1898 by Dübs and Company, Neilson and Company, Neilson, Reid and Company and Sharp, Stewart and Company.[1]
The original 6th Class locomotive and tender had been designed at the Salt River works in Cape Town in 1892, under the supervision of Western System Locomotive Superintendent H.M. Beatty. In 1896 and 1897, the Cape Government Railways (CGR) placed a second batch of fifty 6th Class 4-6-0 steam locomotives in service, which would be designated Class 6A on the South African Railways (SAR) in 1912.[1][2][3][4]
The Type YC first entered service as tenders to these locomotives. More entered service in 1896, as tenders to the Oranje-Vrijstaat Gouwerment-Spoorwegen (OVGS) 6th Class L2, and in 1898, as tenders to the CGR 6th Class of 1898.[1][2][3]
Classification
Since many tender types are interchangeable between different locomotive classes and types, a tender classification system was adopted by the SAR and these tenders were designated Type YC.[3][5]
In the SAR years, tenders were numbered for the engines they were delivered with. In most cases, an oval number plate, bearing the engine number and tender type, would be attached to the rear end of the tender. During the classification and renumbering of locomotives onto the SAR roster in 1912, no separate classification and renumbering list was published for tenders, which should have been renumbered according to the locomotive renumbering list.[5]
Three locomotive classes were delivered new with Type YC tenders. Bearing in mind that tenders could and did migrate between engines, these tenders should have been numbered in the SAR number blocks as shown.[1][2][3]
- 1896: CGR 6th Class of 1896, SAR Class 6A, numbers 441 to 489.
- 1896: OVGS 6th Class L2, SAR Class 6C, numbers 541 to 559 and 561 to 564.
- 1898: CGR 6th Class of 1898, SAR Class 6D, numbers 565 to 597.
Letter codes
The first letter of the tender type indicates the classes of engines to which it can be coupled. The "Y_" tenders could be used with the following locomotive classes:[3]
- CGR Karoo Class of 1903, SAR Class 5A
- CGR Karoo Class of 1904, SAR Class 5B
- CGR 6th Class of 1893, SAR Class 6
- CGR 6th Class of 1896, SAR Class 6A
- OVGS 6th Class L2, SAR Class 6C
- CGR 6th Class of 1898, SAR Class 6D
- CGR 6th Class 2-6-2, SAR Class 6Y
- CGR 6th Class 2-6-4, SAR Class 6Z
The second letter indicates the tender's water capacity. The "_C" tenders had a capacity of between Lua error in Module:Convert at line 1851: attempt to index local 'en_value' (a nil value)..[3]
A number, when added after the letter code, indicates differences between similar tender types, such as wheelbase or coal bunker capacity.[3]
Modification
At some stage before 1941, some Type YC tenders were fitted with new tanks and modified to increase their coal capacity from 5 long tons 10 hundredweight (5.6 tonnes) to 7 long tons 10 hundredweight (7.6 tonnes), by raising their coal bunker sides. The new tank was slightly bigger, which increased the water capacity from Lua error in Module:Convert at line 1851: attempt to index local 'en_value' (a nil value)..[2][3]
-
Class6A-473.jpg
Modified Type YC on SAR Class 6A
References
- ↑ 1.0 1.1 1.2 1.3 1.4 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 2.0 2.1 2.2 2.3 2.4 South African Railways & Harbours/Suid Afrikaanse Spoorweë en Hawens (15 Aug 1941). Locomotive Diagram Book/Lokomotiefdiagramboek, 3'6" Gauge/Spoorwydte. SAR/SAS Mechanical Department/Werktuigkundige Dept. Drawing Office/Tekenkantoor, Pretoria. p. 41.
- ↑ 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 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. 6a-7a, 41.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 5.0 5.1 Classification of S.A.R. Engines with Renumbering Lists, issued by the Chief Mechanical Engineer’s Office, Pretoria, January 1912, pp. 8, 12, 14, 28-30 (Reprinted in April 1987 by SATS Museum, R.3125-6/9/11-1000)
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