South African type YB tender

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South African type YB tender
SAR Class 6 433 (4-6-0) ex CGR 357-OVGS 62-CSAR 338.jpg
Type YB tender on CGR 6th Class of 1893
Type and origin
Locomotive CGR 6th Class of 1893
Designer Cape Government Railways
(H.M. Beatty)
Builder Dübs and Company
In service 1893-1894
Specifications
Configuration 3-axle
Gauge 3 ft 6 in (1,067 mm) Cape gauge
Length Lua error in Module:Convert at line 452: attempt to index field 'titles' (a nil value).
Wheel dia. 37 in (940 mm)
Wheelbase 10 ft (3,048 mm)
Axle load Lua error in Module:Convert at line 1851: attempt to index local 'en_value' (a nil value). average
Weight empty 31,560 lb (14,320 kg)
Weight w/o Lua error in Module:Convert at line 1851: attempt to index local 'en_value' (a nil value).
Fuel type Coal
Fuel cap. 5 LT 10 cwt (5.6 t)
Water cap. Lua error in Module:Convert at line 1851: attempt to index local 'en_value' (a nil value).
Stoking Manual
Couplers Drawbar & Bell link-and-pin
Career
Operators Cape Government Railways
Central South African Railways
Imperial Military Railways
OVGS
South African Railways
Sudan Railways
Numbers SAR 401-440

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The South African type YB tender was a steam locomotive tender from the pre-Union era in the Cape of Good Hope.

The Type YB tender entered service in 1893, as tenders to the first 6th Class 4-6-0 Tenwheeler type steam locomotives to be acquired by the Cape Government Railways. These locomotives were designated Class 6 on the South African Railways in 1912.[1][2][3]

Manufacturer

Type YB tenders were built by Dübs and Company in 1893 and 1894.[1]

The Cape Government Railways (CGR) placed its first forty 6th Class 4-6-0 Tenwheeler type steam locomotives in service in 1893 and 1894. The locomotive and tender were designed in 1892 at the Salt River works in Cape Town, under the supervision of Western System Locomotive Superintendent H.M. Beatty.[1][2][3]

The Type YB entered service as tenders to these locomotives, which were distributed between the Western and Midland Systems of the CGR. In 1912, these locomotives were designated Class 6 on the South African Railways (SAR).[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 YB. Only Class 6 locomotives were delivered new with Type YB tenders.[3][4]

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. Bearing in mind that tenders could and did migrate between engines, the Type YB tenders should have been numbered in the SAR number range from 401 to 440.[2][3][4]

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]

The second letter indicates the tender's water capacity. The "_B" tenders had a capacity of 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]

References

  1. 1.0 1.1 1.2 1.3 Lua error in package.lua at line 80: module 'strict' not found.
  2. 2.0 2.1 2.2 2.3 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. 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 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.
  4. 4.0 4.1 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 (Reprinted in April 1987 by SATS Museum, R.3125-6/9/11-1000)