South African type ZC tender

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South African type ZC tender

SAR Class 7C (4-8-0) ex CGR.jpg

Type ZC tender (5½ LT) on CGR 7th Class of 1902
Type and origin
♠ 5½ long tons coal capacity
♥ 6½ long tons coal capacity
Locomotive ♠ CGR 7th Class of 1896
♠ CGR 7th Class of 1902
♠ IMR 7th Class
♥ NCCR 7th Class of 1899
♥ NCCR 7th Class of 1913
♠ RR 7th Class
Designer Cape Government Railways
(H.M. Beatty)
Builder ♠ Dübs and Company
♠ Kitson and Company
♠ Neilson and Company
♠♥ Neilson, Reid and Company
♠♥ North British Locomotive Co.
♠ Sharp, Stewart and Company
In service ♠ 1896-1902 - ♥ 1899-1913
Rebuilder South African Railways
Rebuild date c. 1925
Rebuilt to Type ZE
Specifications
Configuration 2-axle bogies
Gauge 3 ft 6 in (1,067 mm) Cape gauge
Length 23 ft 8 7⁄8 in (7,236 mm)
Wheel dia.33 1⁄2 in (851 mm) as built
34 in (864 mm) retyred
Wheelbase 16 ft 1 in (4,902 mm)
 • Bogie 4 ft 7 in (1,397 mm)
Axle load ♠ 8 LT 10 cwt 2 qtr (8,662 kg) av.
♥ 9 LT 1 cwt (9,195 kg)
 • Front bogie♥ 17 LT 8 cwt (17,680 kg)
 • Rear bogie♥ 18 LT 2 cwt (18,390 kg)
Weight empty♥ 38,960 lb (17,670 kg)
Weight w/o ♠ 34 LT 2 cwt (34,650 kg)
♥ 35 LT 10 cwt (36,070 kg)
Fuel type Coal
Fuel cap. ♠ 5 LT 10 cwt (5.6 t)
♥ 6 LT 10 cwt (6.6 t)
Water cap. 2,600 imp gal (11,800 l)
Stoking Manual
Couplers Drawbar & Johnston link-and-pin
Drawbar & AAR knuckle (1930s)
Career
Operators Cape Government Railways
Bechuanaland Railway
Imperial Military Railways
Imvani-Indwe Railway
New Cape Central Railway
Rhodesia Railways
South African Railways
Sudan Military Railway
Numbers SAR 949, 988-1068, 1344-1355, 1357-1359

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

Union of South Africa state in southern Africa from 1910 to 1961, predecessor to the Republic of South Africa

The Union of South Africa is the historical predecessor to the present-day Republic of South Africa. It came into being on 31 May 1910 with the unification of the Cape Colony, the Natal Colony, the Transvaal, and the Orange River Colony. It included the territories that were formerly a part of the South African Republic and the Orange Free State.

Cape Colony Dutch and British colony in Southern Africa

The Cape of Good Hope, also known as the Cape Colony, was a British colony in present-day South Africa, named after the Cape of Good Hope. The British colony was preceded by an earlier Dutch colony of the same name, the Kaap de Goede Hoop, established in 1652 by the Dutch East India Company. The Cape was under Dutch rule from 1652 to 1795 and again from 1803 to 1806. The Dutch lost the colony to Great Britain following the 1795 Battle of Muizenberg, but had it returned following the 1802 Peace of Amiens. It was re-occupied by the UK following the Battle of Blaauwberg in 1806, and British possession affirmed with the Anglo-Dutch Treaty of 1814.

Contents

The Type ZC tender first entered service in 1896, as tenders to the second version of the 7th Class4-8-0 Mastodon type steam locomotive to be acquired by the Cape Government Railways. These locomotives were designated Class 7A on the South African Railways in 1912. [1] [2] [3]

Cape Government Railways railway operator in the Cape Colony

The Cape Government Railways (CGR) was the government-owned railway operator in the Cape Colony from 1874 until the creation of the South African Railways (SAR) in 1910.

South African Class 7A 4-8-0 class of 46 South African 4-8-0 locomotives

The South African Railways Class 7A 4-8-0 of 1896 was a steam locomotive from the pre-Union era in the Cape of Good Hope.

Manufacturers

Type ZC tenders were built between 1896 and 1913 by Dübs and Company, Kitson and Company, Neilson and Company, Neilson, Reid and Company, North British Locomotive Company and Sharp, Stewart and Company. [1]

Dübs and Company defunct British locomotive manufacturer

Dübs & Co. was a locomotive manufacturer in Glasgow, Scotland, founded by Henry Dübs in 1863 and based at the Queens Park Works in Polmadie. In 1903 it amalgamated with two other Glasgow locomotive manufacturers to create the North British Locomotive Company.

Kitson and Company was a locomotive manufacturer based in Hunslet, Leeds, West Yorkshire, England.

Neilson and Company defunct British locomotive manufacturer

Neilson and Company was a locomotive manufacturer in Glasgow, Scotland.

The original 7th Class locomotive and tender had been designed at the Salt River works of the Cape Government Railways (CGR) in Cape Town in 1892, under the supervision of H.M. Beatty, the CGR Western System's Locomotive Superintendent. Between 1896 and 1901, the CGR placed 46 more 7th Class locomotives in service, which would be designated Class 7A on the South African Railways (SAR) in 1912. [1] [2] [3]

The Type ZC first entered service in 1896 as tenders to these locomotives. Until 1913, all further 7th Class locomotives which were acquired by the CGR, Imperial Military Railways (IMR), Rhodesia Railways (RR) and New Cape Central Railway (NCCR) were delivered with Type ZC tenders. [2] [3]

A second version of the Type ZC tender, with a larger coal capacity, entered service on the NCCR as tenders to its 7th Class locomotives of 1899-1904 and 1913, which would respectively be designated Classes 7E and 7F on the SAR in 1925. [2] [3]

South African Class 7E 4-8-0

The South African Railways Class 7E 4-8-0 of 1899 was a steam locomotive from the pre-Union era in the Cape of Good Hope.

South African Class 7F 4-8-0 class of 3 South African 4-8-0 locomotives

The South African Railways Class 7F 4-8-0 of 1913 was a steam locomotive.

Characteristics

As built, the first version of the tender had a coal capacity of 5 long tons 10 hundredweight (5.6 tonnes), while the second had a capacity of 6 long tons 10 hundredweight (6.6 tonnes), with maximum axle loads of 8 long tons 10 hundredweight 2 quarters (8,662 kilograms) and 9 long tons 1 hundredweight (9,195 kilograms) respectively. Both versions had a water capacity of 4,000 imperial gallons (18,200 litres). [1] [2] [3]

Locomotives

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 often also the locomotive class or 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. [4]

Six locomotive classes were delivered new with Type ZC tenders, built by six manufacturers. Bearing in mind that tenders could and did migrate between engines, the tenders should have been numbered in the SAR number ranges as shown. [2] [3] [4]

Class 7A Type ZC tender no. 1030 plate.jpg
Type ZC tender ex Class 7F no. 1359.jpg
5½ long tons coal capacity
6½ long tons coal capacity

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 "Z_" tenders could be used with the locomotive classes as shown. [3]

The second letter indicates the tender's water capacity. The "_C" tenders had a capacity of between 2,590 and 2,600 imperial gallons (11,770 and 11,820 litres; 3,110 and 3,122 US gallons). [3]

Modifications and rebuilding

Modifications

When the need arose, the coal capacity of tenders was sometimes increased by makeshift means, such as constructing wooden extensions for the bunker sides. In the example depicted, the Cape of Good Hope Governor's train is shown arriving in Fort Beaufort behind CGR 7th Class no. 722 for the official opening of the railway station in 1904. The engine's Type ZC tender's sides had been raised by installing what appears to be planking, to allow a greater coal load. In addition, an open gondola-type goods truck between the tender and the passenger carriage is loaded with more coal and two workmen.

More permanent modifications to increase coal capacity were in the form of a slatted cage mounted on top of the coal bunker and, in later years, a sheet-metal extension to raise the bunker sides.

Rebuilding to Type ZE

From c. 1925, several of the Type ZC tenders which had entered service with the Class 7A in 1896, the Class 7B in 1900 and the Class 7C in 1902, were completely rebuilt by the 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 ZE. [2] [3] [5]

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 of the SAR from 1922 to 1929. It was continued by his successor, A.G. Watson. [5]

Illustration

Related Research Articles

South African Class 7 4-8-0 class of 38 South African 4-8-0 locomotives

The South African Railways Class 7 4-8-0 of 1892 was a steam locomotive from the pre-Union era in the Cape of Good Hope.

South African Class 7B 4-8-0 class of 29 South African 4-8-0 locomotives

The South African Railways Class 7B 4-8-0 of 1900 was a steam locomotive from the pre-Union era in Transvaal.

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

South African type ZA tender

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

South African type ZE tender

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

South African type YB tender

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

South African type YC tender

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

South African steam locomotive tenders

South African steam locomotive tenders were classified by means of type letters and sometimes numbers, while locomotive specifications included a list of permissible tenders which could be used with each engine class.

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 XF tender

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

South African type XD tender

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

The South African type XM2 tender was a steam locomotive tender from the pre-Union era in Transvaal.

South African type XE1 tender

The South African type XE1 tender was a steam locomotive tender from the pre-Union era in the Cape of Good Hope.

South African type XF2 tender

The South African type XF2 tender was a steam locomotive tender from the pre-Union era in the Cape of Good Hope.

South African type XC1 tender

The South African type XC1 tender was a steam locomotive tender from the pre-Union era in the Cape of Good Hope.

The South African type XJ 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.

South African type XM tender

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

References

  1. 1 2 3 4 Holland, D.F. (1971). Steam Locomotives of the South African Railways. 1: 1859–1910 (1st ed.). Newton Abbott, Devon: David & Charles. pp. 41–44. ISBN   978-0-7153-5382-0.
  2. 1 2 3 4 5 6 7 8 9 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. 1 2 3 4 5 6 7 8 9 10 11 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, 41-42.
  4. 1 2 Classification of S.A.R. Engines with Renumbering Lists, issued by the Chief Mechanical Engineer’s Office, Pretoria, January 1912, pp. 8, 12, 15, 37 (Reprinted in April 1987 by SATS Museum, R.3125-6/9/11-1000)
  5. 1 2 SAR Mechanical Department. New Tender Tank - Class 6B, 6E (XE), 7A, 7B, 7C (ZE). SAR Mechanical Department Drawing Office, Drawing L-5618, 1925.
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