South West African 2-8-0

DSWA Eight-Coupled Tender 2-8-0
South West African 2-8-0

Eight-coupled tender with an auxiliary water tank wagon, coupling to a trainload of whale bones at Walvisbaai, c. 1925
Type and origin
Power type Steam
Designer Orenstein & Koppel
Builder Orenstein & Koppel
Serial number 4614-4621
Build date 1911
Total produced 8
Specifications
Configuration 2-8-0 "Consolidation"
Gauge 3 ft 6 in (1,067 mm) Cape gauge
Driver diameter 39 38 in (1,000 mm)
Length 50 ft 0 34 in (15,259 mm)
Axle load 7 820 long tons (7.5 t)
Loco weight 34 1020 long tons (35.1 t)
Tender weight 31 1020 long tons (32.0 t)
Loco & tender weight 66 long tons (67.1 t)
Fuel type Coal
Firebox:
  Firegrate area
19.5 sq ft (1.812 m2)
Boiler pressure 171 psi (1,180 kPa)
Cylinders Two
Cylinder size 14 916 in (370 mm) bore
19 1116 in (500 mm) stroke
Valve gear Walschaerts
Performance figures
Tractive effort 13,580 lbf (60 kN) at 75% pressure
Career
Operators Lüderitzbucht Eisenbahn
South African Railways
Number in class 8
Numbers DSWA 151-158
Delivered 1911
First run 1911

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The South West African 2-8-0 of 1911 was a steam locomotive from the Deutsch-Südwest-Afrika era.

In 1911 eight tender locomotives with a 2-8-0 Consolidation type wheel arrangement were placed in service by the Lüderitzbucht Eisenbahn (Lüderitzbucht Railway) in Deutsch-Südwest-Afrika (German South West Africa). After the First World War the territory came under South African administration and all eight locomotives came onto the roster of the South African Railways. They were not classified or renumbered but were referred to as the Eight-Coupled Tenders.[1][2]

Manufacturer

In 1911 eight Cape Gauge tender locomotives with a 2-8-0 wheel arrangement were delivered to the Lüderitzbucht Eisenbahn in Deutsch-Südwest-Afrika (now Namibia). They were built by Orenstein & Koppel between February and April 1911 and numbered in the range from 151 to 158. These locomotives had larger boilers than the Eight-Coupled Tank locomotives that were delivered from the same manufacturer between 1907 and 1910, but their cylinders, frames and motion were interchangeable with those of the tank engines. The locomotives were equipped with dust shields over the coupled wheels and valve gear to protect the moving parts from blown sand in the Namib desert.[2][3]

Service

Lüderitzbucht Eisenbahn

The locomotives served on the Nordsüdbahn (north-south railway) between Windhoek and Keetmanshoop. As a result of the scarcity of water in the territory, they often ran with an auxiliary water tank wagon.[3][2]

South African Railways

On 1 April 1922 all railways in the former German colony came under the administration of the South African Railways (SAR). All eight locomotives survived World War I to be taken onto the SAR roster. They retained their German colonial era engine numbers and were not classified by the SAR, but were referred to as the Eight-Coupled Tenders.[1][2]

The Eight-Coupled Tenders remained in SAR service in South West Africa into the late 1930s.[1] One was photographed in service on a passenger train at Swakopmund as late as 7 October 1937.[4]

Illustration

While the main picture shows a head-on view of the locomotive with the protective side panels lowered, the first one below offers a side view with the panels opened. The locomotive number on the smokebox in the first picture is unclear and while it appears to be 150, it is possibly 156.[3]

References

  1. 1 2 3 Paxton, Leith; Bourne, David (1985). Locomotives of the South African Railways (1st ed.). Cape Town: Struik. p. 99, 149. ISBN 0869772112.
  2. 1 2 3 4 Dulez, Jean A. (2012). Railways of Southern Africa 150 Years (Commemorating One Hundred and Fifty Years of Railways on the Sub-Continent - Complete Motive Power Classifications and Famous Trains - 1860-2011) (1st ed.). Garden View, Johannesburg, South Africa: Vidrail Productions. p. 35. ISBN 9 780620 512282.
  3. 1 2 3 Lieferverzeichnis O and K Dampfloks
  4. Photos from Africa 1937 - All photos on this page by Aa. V. Andersen 1937
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