South African type SK tender

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South African type SK tender

Type SK drawing.jpg

SAR dimensional drawing
Type and origin
Locomotive SAR Classes 1, 1B & 2
Designer South African Railways
Builder South African Railways
In service c. 1925
Rebuilt from Type SH
Rebuilder South African Railways
Specifications
Configuration 2-axle bogies
Gauge 3 ft 6 in (1,067 mm) Cape gauge
Length 22 ft 9 3⁄16 in (6,939 mm)
Wheel dia. 30 in (762 mm)
Wheelbase 15 ft 6 in (4,724 mm)
 • Bogie 4 ft 6 in (1,372 mm)
Fuel type Coal
Fuel cap. 8 LT 15 cwt (8.9 t)
Water cap. 3,675 imp gal (16,700 l)
Stoking Manual
Couplers Drawbar & Johnston link-and-pin
Drawbar & AAR knuckle (1930s)
Career
Operators South African Railways
Numbers SAR 762-763, 1245-1288, 1440-1445

The South African type SK tender was a steam locomotive tender.

Tender (rail) vehicle for carrying a steam locomotives supply of fuel and water

A tender or coal-car is a special rail vehicle hauled by a steam locomotive containing its fuel and water. Steam locomotives consume large quantities of water compared to the quantity of fuel, so their tenders are necessary to keep them running over long distances. A locomotive that pulls a tender is called a tender locomotive. Locomotives that do not have tenders and carry all their fuel and water on board the locomotive (itself) instead are called tank locomotives.

Contents

Type SK tenders were rebuilt from Type SH tenders which had entered service in 1904 and 1905. The rebuilding resulted in a tender with a larger water tank and larger coal bunker. [1] [2]

The South African type SH tender was a steam locomotive tender from the pre-Union era in the Natal Colony.

Origin

The original Natal Government Railways (NGR) Class B Mastodon and Class A Pacific locomotives and tenders were designed in 1904 by NGR Locomotive Superintendent D.A. Hendrie. [1] [2] [3]

The South African Railways Class 1 4-8-0 of 1904 was a steam locomotive from the pre-Union era in the Colony of Natal.

The South African Railways Class 2 4-6-2 of 1905 was a steam locomotive from the pre-Union era in the Colony of Natal.

Type SH tenders entered service as tenders to these locomotives in 1904 and 1905, built by the North British Locomotive Company. [1] [2] [3]

North British Locomotive Company defunct British locomotive manufacturer, active 1903–1962

The North British Locomotive Company was created in 1903 through the merger of three Glasgow locomotive manufacturing companies; Sharp, Stewart and Company, Neilson, Reid and Company and Dübs and Company, creating the largest locomotive manufacturing company in Europe and the British Empire.

Rebuilding

From c. 1925, several of the Type SH tenders were completely rebuilt by the South African Railways (SAR) by mounting a new upper structure on the existing underframe, with larger water tanks and a larger coal capacity. These rebuilt tenders had a more modern appearance, with flush sides all the way to the top of the coal bunker. They were designated Type SK. [4]

The program to rebuild several older tender types with new upper structures was begun by Col F.R. Collins DSO, who approved several of the detailed drawings for the work during his term in office as Chief Mechanical Engineer (CME) of the SAR from 1922 to 1929. It was continued by his successor, A.G. Watson. [1] [2] [4]

Distinguished Service Order UK military decoration

The Distinguished Service Order (DSO) is a military decoration of the United Kingdom, and formerly of other parts of the Commonwealth, awarded for meritorious or distinguished service by officers of the armed forces during wartime, typically in actual combat. Since 1993 all ranks have been eligible.

Characteristics

The rebuilt tender had a water capacity which had been increased from 3,225 to 3,675 imperial gallons (14,661 to 16,707 litres) and a coal capacity which had been increased from 6 long tons (6.1 tonnes) to 8 long tons 15 hundredweight (8.9 tonnes). [1] [2] [4]

Classification letters

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 "S_" tenders could be used with the locomotive classes as shown. [2]

The second letter indicates the tender's water capacity. The "_K" tenders had a capacity of 3,675 imperial gallons (16,700 litres; 4,410 US gallons). [2]

Related Research Articles

South African type ZE tender

The South African type ZE tender was a steam locomotive tender.

South African type YE tender

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

South African type YE1 tender

The South African type YE1 tender was a steam locomotive tender from the pre-Union era in the Cape of Good Hope.

South African type TJ tender

The South African type TJ tender was a steam locomotive tender from the pre-Union era in the Natal Colony.

The South African type TM tender was a steam locomotive tender from the pre-Union era in the Natal Colony.

South African type XM1 tender

The South African type XM1 tender was a steam locomotive tender.

South African type TL tender

The South African type TL tender was a steam locomotive tender.

South African type WG tender

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

The South African type XS tender was a steam locomotive tender from the pre-Union era in Transvaal.

South African type MR tender

The South African type MR tender was a steam locomotive tender.

The South African type LP tender was a steam locomotive tender.

South African type HT tender

The South African type HT tender was a steam locomotive tender.

South African type GT tender

The South African type GT tender was a steam locomotive tender.

The South African type MS tender was a steam locomotive tender.

South African type MT1 tender

The South African type MT1 tender was a steam locomotive tender.

South African type MT2 tender steam locomotive tender

The South African type MT2 tender was a steam locomotive tender.

South African type MX tender

The South African type MX tender was a steam locomotive tender.

The South African type ET1 tender was a steam locomotive tender.

South African type XF1 tender

The South African type XF1 tender was a steam locomotive tender.

References

  1. 1 2 3 4 5 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. 43.
  2. 1 2 3 4 5 6 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, 43.
  3. 1 2 Holland, D.F. (1971). Steam Locomotives of the South African Railways. 1: 1859–1910 (1st ed.). Newton Abbott, Devon: David & Charles. pp. 99–101. ISBN   978-0-7153-5382-0.
  4. 1 2 3 SAR Mechanical Department. New Tender Tank - Classes 1, 1A, 2, 2C, 3, 3B. SAR Mechanical Department Drawing Office, Drawing L-6512/1, c. 1926.
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