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South West African Jung

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DSWA Jung 0-6-2T
South West African Jung 0-6-2T
Jung 0-6-2T no. 9 plinthed in Tsumeb, Namibia, 17 February 2011
Type and origin
Power typeSteam
DesignerArnold Jung Lokomotivfabrik
BuilderArnold Jung Lokomotivfabrik
Serial number707-716, 804-808
Build date1904
Specifications
Configuration:
 • Whyte0-6-2T
Gauge600 mm (1 ft 11+58 in) narrow gauge
Driver dia.27+916 in (700 mm)
Wheelbase5 ft 6+78 in (1,699 mm) coupled wheels
11 ft 7+34 in (3,550 mm) engine
16 ft 5 in (5,004 mm) tender
Length22 ft 9+58 in (6,950 mm) as tank engine
39 ft 6+34 in (12,059 mm) with tender
Width6 ft 10 in (2,083 mm)
Height10 ft 4 in (3,150 mm)
Loco weight21+1220 long tons (21.9 t) w/o
Tender type2-axle bogies
Fuel typeCoal
Fuel capacity34 long ton (0.76 t) engine
1 long ton (1.0 t) tender
Water cap.770 imp gal (3,500 L; 920 US gal) engine
1,188 imp gal (5,400 L; 1,427 US gal) tender
Firebox:
 • Grate area7.7 sq ft (0.715 m2)
Boiler pressure171 psi (1,180 kPa)
Heating surface:
 • Firebox38.5 sq ft (3.58 m2)
CylindersTwo
Cylinder size11+1316 in (300 mm) bore
13+2532 in (350 mm) stroke
Valve gearWalschaerts
Performance figures
Tractive effort8,928 lbf (40 kN) at 75% pressure
Career
OperatorsOtavi Mining and Railway Company
South African Railways
Number in class15
Numbers1-15
Delivered1904
First run1904

The South West African Jung 0-6-2T of 1904 is a narrow gauge steam locomotive from the Deutsch-Südwest-Afrika era.

In 1904 the Otavi Mining and Railway Company in Deutsch-Südwest-Afrika, now Namibia, acquired fifteen 0-6-2 tank locomotives from Arnold Jung in Germany. Two of them survived to be taken onto the South African Railways roster in 1922.[1][2]

The Otavi Railway

Construction of the 600 millimetres (23.6 inches) narrow gauge Otavi railway line in Deutsch-Südwest-Afrika (DSWA), heading northeastward from Swakopmund via Usakos and Otjiwarongo, commenced in 1903 and was completed through Otavi and on to Tsumeb in August 1906. From Swakopmund to Usakos the line ran more or less parallel and to the north of the original Swakopmund-Windhuk Staatsbahn that had been constructed from 1897.[2]

In 1905 a short 14 kilometres (9 miles) branchline was constructed from Onguati near Usakos on the Otavi line to Karibib on the Staatsbahn to create an alternative line from Windhoek to the Atlantic Ocean at times when the Staatsbahn's section through the Khan River gorge suffered from the occasional flooding.[2]

On 1 April 1910 the Otavi line and its assets were purchased by the German Administration under an agreement in terms of which the mining company would continue to operate the line for a further ten years, while the problematic Khan River section of the Staatsbahn line could eventually be closed.[2]

Manufacturer

The first locomotives for the Otavi Railway were fifteen 0-6-2 tank steam locomotives that were built by Arnold Jung Lokomotivfabrik in Germany in 1904. They used Walschaerts valve gear and were numbered in the range from 1 to 15. Since the line traversed the Namib Desert, they were often used with a rectangular auxiliary water tank in tow.[1][2]

South African Railways

During World War I the former German Colony came under South African administration and the railways in DSWA came under control of the Union Defence Forces. Control of all railway operations in South West Africa (SWA) was passed on from the Military to the Director of Railways in Windhoek on 1 August 1915. On 1 April 1922 all the railway lines and rolling stock in the territory became part of the South African Railways (SAR).[1]

Two of these locomotives survived into the SAR era, no. 1 and no. 13, the rest by then having either been scrapped or, like no. 9 that is preserved at Tsumeb, sold to industry. Both SAR locomotives were subsequently modified to tank-and-tender locomotives by removing their coal bunkers and adapting the rectangular auxiliary water tenders to coal-and-water tenders.[1][2]

Works numbers

The locomotive numbers and Jung works numbers are listed in the table.[3]

Illustration

The pictures of no. 9 serve to illustrate both sides of the Jung locomotive.

References

  1. ^ a b c d Paxton, Leith; Bourne, David (1985). Locomotives of the South African Railways (1st ed.). Cape Town: Struik. p. 115. ISBN 0869772112.
  2. ^ a b c d e f 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. pp. 235, 379–382. ISBN 9 780620 512282.
  3. ^ Jung works list, compiled by Austrian locomotive historian Bernhard Schmeiser