Construction of the 600 millimetres (23.62 inches) narrow gauge Otavi Railway in German South West Africa (GSWA), which heads northeastward from Swakopmund via Usakos and Otjiwarongo, commenced in November 1903. The 351-mile long (565-kilometre) line was completed through Otavi and on to Tsumeb in August 1906, with a 56-mile long (90-kilometre) branch line from Otavi to Grootfontein. From Swakopmund to Usakos, the line ran more or less parallel and to the north of the original Swakopmund-Windhuk Staatsbahn or Nordbahn, which had been constructed from 1897.[3][4]
In 1905, a short 14 kilometres (9 miles) branchline was constructed from Onguati near Usakos on the Otavi line to Karibib on the Nordbahn to create an alternative line from Windhoek to the Atlantic Ocean at times when the Nordbahn's section through the Khan River gorge suffered from the occasional flooding.[3][4]
The Otavi Railway, the longest narrow gauge railway in the world, was an industrial enterprise of the Otavi Mining and Railway Company. The railway was constructed by Messrs. Arthur Koppel and Company at a cost of about £2,400 per mile. It was well-built with a ruling gradient of about 1 in 66 (1½%) and minimum curvature of 150 metres (492 feet). The tracks were laid with 30 pounds per yard (15 kilograms per metre) steel rails on 26 pounds (12 kilograms) steel sleepers. From sea level at Swakopmund, the railway rose to an altitude of 3,500 feet (1,067 metres) at Ebony, then dropped to an altitude of 2,640 feet (805 metres) at Usakos and then rose to its highest elevation of 5,200 feet (1,585 metres) at Kalkveld.[4]
On 1 April 1910, the Otavi Railway and its assets were purchased by the German Administration for £1,000,000 under a lease agreement in terms of which the mining company would continue to operate the line for a further ten years. As a result, the problematic Khan River section of the Nordbahn line could finally be abandoned.[3][4]
ManufacturerEdit
The first mainline locomotives for the Otavi Railway were these fifteen 0-6-2T steam locomotives, numbered in the range from 1 to 15, which were built by Arnold Jung Lokomotivfabrik in Germany in 1904.[1][2]
CharacteristicsEdit
They used Heusinger valve gear to actuate Murdoch's D slide valves and were built on 5⁄8 inch (16 millimetres) thick plate frames which were arranged outside the coupled and trailing wheels. Their coal bunkers had a capacity of 15 long hundredweight (0.8 tonnes), while their side tanks carried 770 imperial gallons (3,500 litres) of water.[2]
ServiceEdit
Until the railway was completed in 1906, these locomotives also served as construction engines. Since the Otavi railway traversed the Namib Desert, the engines were often seen with rectangular auxiliary water tenders in tow.[1][2][3]
During the First World War, the former German Colony came under South African administration and the railways in GSWA 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), but the SWA locomotives were never reclassified or renumbered and retained their former German identities until they were withdrawn from service.[1]
Two of the Jung locomotives survived into the SAR era, no. 1 and no. 13, the rest by then having either been scrapped or, like no. 9 which is preserved at Tsumeb, sold to industry. Both SAR locomotives had been modified to tank-and-tender engines for use on the Otavi Railway's fast passenger service. Their coal bunkers were removed and they were equipped with tenders, supplied by Henschel and Son, which ran on four-wheeled bogies and had a capacity of 2 long tons 10 hundredweight (2.5 tonnes) coal and 1,188 imperial gallons (5,400 litres) water. Similar tenders had been fitted to modified Class Ha locomotives.[1][2][3]
Works numbersEdit
The locomotive numbers and Jung works numbers are listed in the table.[5]
GSWA Jung 0-6-2T
Loco no.
Works no.
1
707
2
708
3
709
4
710
5
711
6
712
7
713
8
714
9
715
10
716
11
804
12
805
13
806
14
807
15
808
IllustrationEdit
Jung engine and tender, c. 1905
Jung 0-6-2T no. 9 plinthed at Tsumeb
Jung locomotive on a work train near Ababis, c. 1906
Jung 0-6-2T no. 1 on a work train near Tsumeb
ReferencesEdit
Wikimedia Commons has media related to South West African Jung.
^ abcdePaxton, Leith; Bourne, David (1985). Locomotives of the South African Railways (1st ed.). Cape Town: Struik. p. 115. ISBN0869772112.
^ abcdeEspitalier, T.J.; Day, W.A.J. (1947). The Locomotive in South Africa - A Brief History of Railway Development. Chapter VII - South African Railways (Continued). South African Railways and Harbours Magazine, October 1947. pp. 859-860.
^ abcdefDulez, 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. ISBN9 780620 512282.
^ abcdEspitalier, T.J.; Day, W.A.J. (1947). The Locomotive in South Africa - A Brief History of Railway Development. Chapter VII - South African Railways (Continued). South West Africa. South African Railways and Harbours Magazine, August 1947. p. 667.
^Jung works list, compiled by Austrian locomotive historian Bernhard Schmeiser
September 02, 2023
south, west, african, jung, 1904, narrow, gauge, steam, locomotive, from, german, south, west, africa, gswa, jung, 2tno, plinthed, tsumeb, february, 2011type, originpower, typesteamdesignerarnold, jung, lokomotivfabrikbuilderarnold, jung, lokomotivfabrikserial. The South West African Jung 0 6 2T of 1904 was a narrow gauge steam locomotive from the German South West Africa era GSWA Jung 0 6 2TSouth West African Jung 0 6 2TNo 9 plinthed in Tsumeb 17 February 2011Type and originPower typeSteamDesignerArnold Jung LokomotivfabrikBuilderArnold Jung LokomotivfabrikSerial number707 716 804 808Build date1903Total produced15SpecificationsConfiguration Whyte0 6 2T UICC1n2tDriver3rd coupled axleGauge600 mm 1 ft 11 5 8 in narrowCoupled dia 27 9 16 in 700 mm Wheelbase11 ft 7 3 4 in 3 550 mm Coupled5 ft 7 1 4 in 1 708 mm Tender16 ft 5 in 5 004 mm Wheel spacing Asymmetrical 1 2 2 ft 8 3 4 in 832 mm 2 3 2 ft 10 1 2 in 876 mm Length Over couplers22 ft 9 1 2 in 6 947 mm 0 6 2T 39 ft 6 3 4 in 12 059 mm 0 6 2 Over beams19 ft 4 1 2 in 5 906 mm 0 6 2T Width6 ft 10 in 2 083 mm Height10 ft 4 in 3 150 mm Frame typePlateLoco weight21 LT 12 cwt 21 950 kg Tender type2 axle bogiesFuel typeCoalFuel capacity15 long hundredweight 0 8 t Water cap 770 imp gal 3 500 L Tender cap 2 LT 10 cwt 2 5 t coal1 188 imp gal 5 400 L waterFirebox typeRound top Firegrate area7 7 sq ft 0 72 m2 Boiler Pitch4 ft 6 1 2 in 1 384 mm Boiler pressure171 psi 1 179 kPa Heating surface Firebox38 5 sq ft 3 58 m2 CylindersTwoCylinder size11 13 16 in 300 mm bore13 25 32 in 350 mm strokeValve gearHeusingerValve typeMurdoch s D slideCouplersBuffer and chainsPerformance figuresTractive effort8 928 lbf 39 71 kN 75 CareerOperatorsOtavi Mining and Railway Co South African RailwaysNumber in class15Numbers1 15Delivered1904First run1904In 1904 the Otavi Mining and Railway Company in German South West Africa acquired fifteen 0 6 2T locomotives from Arnold Jung Lokomotivfabrik in Germany Two of them survived the First World War to be taken onto the South African Railways roster in 1922 1 2 3 Contents 1 The Otavi Railway 2 Manufacturer 3 Characteristics 4 Service 5 Works numbers 6 Illustration 7 ReferencesThe Otavi Railway EditConstruction of the 600 millimetres 23 62 inches narrow gauge Otavi Railway in German South West Africa GSWA which heads northeastward from Swakopmund via Usakos and Otjiwarongo commenced in November 1903 The 351 mile long 565 kilometre line was completed through Otavi and on to Tsumeb in August 1906 with a 56 mile long 90 kilometre branch line from Otavi to Grootfontein From Swakopmund to Usakos the line ran more or less parallel and to the north of the original Swakopmund Windhuk Staatsbahn or Nordbahn which had been constructed from 1897 3 4 In 1905 a short 14 kilometres 9 miles branchline was constructed from Onguati near Usakos on the Otavi line to Karibib on the Nordbahn to create an alternative line from Windhoek to the Atlantic Ocean at times when the Nordbahn s section through the Khan River gorge suffered from the occasional flooding 3 4 The Otavi Railway the longest narrow gauge railway in the world was an industrial enterprise of the Otavi Mining and Railway Company The railway was constructed by Messrs Arthur Koppel and Company at a cost of about 2 400 per mile It was well built with a ruling gradient of about 1 in 66 1 and minimum curvature of 150 metres 492 feet The tracks were laid with 30 pounds per yard 15 kilograms per metre steel rails on 26 pounds 12 kilograms steel sleepers From sea level at Swakopmund the railway rose to an altitude of 3 500 feet 1 067 metres at Ebony then dropped to an altitude of 2 640 feet 805 metres at Usakos and then rose to its highest elevation of 5 200 feet 1 585 metres at Kalkveld 4 On 1 April 1910 the Otavi Railway and its assets were purchased by the German Administration for 1 000 000 under a lease agreement in terms of which the mining company would continue to operate the line for a further ten years As a result the problematic Khan River section of the Nordbahn line could finally be abandoned 3 4 Manufacturer EditThe first mainline locomotives for the Otavi Railway were these fifteen 0 6 2T steam locomotives numbered in the range from 1 to 15 which were built by Arnold Jung Lokomotivfabrik in Germany in 1904 1 2 Characteristics EditThey used Heusinger valve gear to actuate Murdoch s D slide valves and were built on 5 8 inch 16 millimetres thick plate frames which were arranged outside the coupled and trailing wheels Their coal bunkers had a capacity of 15 long hundredweight 0 8 tonnes while their side tanks carried 770 imperial gallons 3 500 litres of water 2 Service EditUntil the railway was completed in 1906 these locomotives also served as construction engines Since the Otavi railway traversed the Namib Desert the engines were often seen with rectangular auxiliary water tenders in tow 1 2 3 During the First World War the former German Colony came under South African administration and the railways in GSWA 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 but the SWA locomotives were never reclassified or renumbered and retained their former German identities until they were withdrawn from service 1 Two of the Jung locomotives survived into the SAR era no 1 and no 13 the rest by then having either been scrapped or like no 9 which is preserved at Tsumeb sold to industry Both SAR locomotives had been modified to tank and tender engines for use on the Otavi Railway s fast passenger service Their coal bunkers were removed and they were equipped with tenders supplied by Henschel and Son which ran on four wheeled bogies and had a capacity of 2 long tons 10 hundredweight 2 5 tonnes coal and 1 188 imperial gallons 5 400 litres water Similar tenders had been fitted to modified Class Ha locomotives 1 2 3 Works numbers EditThe locomotive numbers and Jung works numbers are listed in the table 5 GSWA Jung 0 6 2T Loco no Worksno 1 7072 7083 7094 7105 7116 7127 7138 7149 71510 71611 80412 80513 80614 80715 808Illustration Edit nbsp Jung engine and tender c 1905 nbsp Jung 0 6 2T no 9 plinthed at Tsumeb nbsp Jung locomotive on a work train near Ababis c 1906 nbsp Jung 0 6 2T no 1 on a work train near TsumebReferences Edit nbsp Wikimedia Commons has media related to South West African Jung a b c d e Paxton Leith Bourne David 1985 Locomotives of the South African Railways 1st ed Cape Town Struik p 115 ISBN 0869772112 a b c d e Espitalier T J Day W A J 1947 The Locomotive in South Africa A Brief History of Railway Development Chapter VII South African Railways Continued South African Railways and Harbours Magazine October 1947 pp 859 860 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 a b c d Espitalier T J Day W A J 1947 The Locomotive in South Africa A Brief History of Railway Development Chapter VII South African Railways Continued South West Africa South African Railways and Harbours Magazine August 1947 p 667 Jung works list compiled by Austrian locomotive historian Bernhard Schmeiser Retrieved from https en wikipedia org w index php title South West African Jung amp oldid 1126751465, wikipedia, wiki, book, books, library,
