South African type ZA tender

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South African type ZA tender

Class 7 no. 975.jpg

Type ZA tender on CGR 7th Class of 1892
Type and origin
Locomotive CGR 7th Class of 1892
Designer Cape Government Railways
(H.M. Beatty)
Builder Dübs and Company
In service 1892
Specifications
Configuration 2-axle bogies
Gauge 3 ft 6 in (1,067 mm) Cape gauge
Length 21 ft 9 1⁄8 in (6,633 mm)
Wheel dia.33 1⁄2 in (851 mm) as built
34 in (864 mm) retyred
Wheelbase 14 ft 7 in (4,445 mm)
 • Bogie 4 ft 7 in (1,397 mm)
Fuel type Coal
Fuel cap. 3 LT 10 cwt (3.6 t)
Water cap. 2,220 imp gal (10,100 l)
Stoking Manual
Couplers Drawbar & Johnston link-and-pin
Career
Operators Cape Government Railways
Imperial Military Railways
South African Railways
Numbers SAR 950-953, 968-969

The South African type ZA 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 ZA tender entered service in 1892, as tenders to the first batch of 7th Class4-8-0 Mastodon type steam locomotives to be acquired by the Cape Government Railways. These locomotives were designated Class 7 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 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.

Manufacturer

The Types ZA and ZB tenders were both introduced in 1892 as tenders to the original Cape Government Railways (CGR) 7th Class 4-8-0 Mastodon type locomotive, which was built in two batches. Six engines were built by Dübs and Company in 1892, and 32 by Neilson and Company in 1892 and 1893. Since a Neilson works picture shows one of the Neilson-built batch of locomotives with the larger-capacity three-axle Type ZB tender, it is likely that the smaller-capacity Type ZA bogie tenders were delivered with the first batch of six 7th Class locomotives, built by Dübs. [2] [3]

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

4-8-0 locomotive wheel arrangement

Under the Whyte notation for the classification of steam locomotives, 4-8-0 represents the wheel arrangement of four leading wheels on two axles, usually in a leading truck or bogie, eight powered and coupled driving wheels on four axles and no trailing wheels. In North America and in some other countries the type was usually known as the Mastodon and sometimes as the Twelve-wheeler.

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.

The locomotive and tender were designed at the Salt River works in Cape Town under the supervision of Western System Locomotive Superintendent H.M. Beatty. [1] [2] [3]

The Type ZA entered service as tenders to these locomotives, all of which were initially placed in service on the Midland System of the CGR, but were later distributed between the Midland and Eastern Systems. These engines would be designated Class 7 on the South African Railways (SAR) in 1912. [1] [2] [3]

Characteristics

The tender had a coal capacity of 3 long tons 10 hundredweight (3.6 tonnes) and a water capacity of 2,220 imperial gallons (10,100 litres). [1] [2] [3]

Locomotive

Type ZA tender Class 7 no. 975 & ZA tender.jpg
Type ZA tender

In the SAR years, tenders were numbered for the engines they were delivered with. In most cases, an oval number plate, bearing the tender 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. [3] [4]

Only Class 7 locomotives were delivered new with Type ZA tenders. The six Dübs-built tenders should have been renumbered in the SAR number range from 950 to 953 in respect of the four ex-Midland System engines, and 968 and 969 in respect of the two ex-Eastern System engines. Having already been in service for twenty years by then and given the interchangeability of tenders between engines, it is possible, but not confirmed, that tenders were numbered for the engines they were attached to at the time. [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 "Z_" tenders could be used with the following locomotive classes: [3]

The second letter indicates the tender's water capacity. The "_A" tenders had a capacity of 2,220 imperial gallons (10,100 litres; 2,670 US gallons). [3]

Related Research Articles

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The South African Railways Class 8 4-8-0 of 1902 was a steam locomotive from the pre-Union era in the Cape of Good Hope.

South African type ZC tender

The South African type ZC 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 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.

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.

South African type XE tender

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

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

South African type WE tender

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

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 XM4 tender

The South African type XM4 tender was a steam locomotive tender.

South African type MX tender

The South African type MX 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. 40–41, 61. ISBN   978-0-7153-5382-0.
  2. 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. 41.
  3. 1 2 3 4 5 6 7 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.
  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)
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