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Otavi Mining and Railway Company

Otavi Mining and Railway Company is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Otavi Mining and Railway Company rather than just read about it. In short: The Otavi Mining and Railway Company (Otavi Minen- und Eisenbahn-Gesellschaft or OMEG) was a railway and mining company in German South West Africa (today's Namibia). It was founded on 6 April 1900 in Berlin with the Disconto-Gesellschaft and the South West Africa Company as major shareholders.

Otavi Mining and Railway Company — main illustration
Otavi Mining and Railway Company — illustration

Key takeaways

  • Otavi Mining and Railway Company belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Otavi Mining and Railway Company to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Otavi Mining and Railway Company from memory before moving on to harder problems.

Reference excerpt

The Otavi Mining and Railway Company (Otavi Minen- und Eisenbahn-Gesellschaft or OMEG) was a railway and mining company in German South West Africa (today's Namibia). It was founded on 6 April 1900 in Berlin with the Disconto-Gesellschaft and the South West Africa Company as major shareholders.

Construction

OMEG built a 600 mm (1 ft 11+5⁄8 in) narrow gauge railway extending 567 kilometres (352 mi) from Swakopmund on the Atlantic coast to the mines of Tsumeb. Construction began in 1903 and reached Tsumeb three years later. The first 225 kilometres (140 mi) of railway required 110 steel bridges to cross deeply eroded gullies through sparsely vegetated arid terrain. Most were deck plate girders. The railway, known as the Otavibahn, was the longest 600 mm (1 ft 11+5⁄8 in) gauge railway in the world at its time of construction. Construction coincided with the Herero and Namaqua Genocide. Delays resulted from labor shortages and military heeresfeldbahn operations. A 91-kilometer branch was completed in 1908 from Otavi to mines near Grootfontein. During World War I, German troops had moved inland by the time South African troops reached Swakopmund in January, 1915. German forces destroyed the railroad as they retreated, and South African forces reconstructed a 3 ft 6 in (1,067 mm) narrow gauge line over the route to Karabib in 1915. German troops surrendered following defeat at Otavi in July, 1915; and service was re-established over the remaining 600 mm (1 ft 11+5⁄8 in) narrow gauge line from the railway shops at Usakos with freight transfer facilities at Karabib.

Nationalization and conversion to Cape gauge The Otavi line was nationalized in 1923. Train service was interrupted by a locust infestation in 1924 until steam nozzles were installed on locomotives to sweep the insects off the rails before their crushed bodies could reduce traction under the locomotive wheels. The worst flooding in forty years caused extensive washouts in 1925. The Tsumeb mines closed in 1933. German rearmament activity reopened the mines from 1936 until the South African government closed the mine as enemy property in 1940. Tsumeb mines reopened again in 1946. The remainder of the line was regauged to 3 ft 6 in (1,067 mm) narrow gauge in 1961 and became part of the TransNamib.

Rolling stock The first locomotives designed for regular service were fifteen 22-tonne (21.7-long-ton; 24.3-short-ton) 0-6-2T built by Arn. Jung. Henschel & Sohn built twelve locomotives similar to the Jung design and three 0-6-0T. Twenty 8-wheel auxiliary tenders carrying 8 cubic metres of water and 3.5 tonnes (3.4 long tons; 3.9 short tons) of coal were built to enable these tank locomotives to complete longer runs. Henschel & Sohn built three HD class 2-8-2 in 1912 with separate 8-wheel tenders for long-distance running. These locomotives weighed 59 tonnes (58 long tons; 65 short tons) (including the 26-tonne (25.6-long-ton; 28.7-short-ton) tender) and remained in service for 50 years as the 2-8-2 type became standard for the railway. By 1913, train service included 4 express trains, 14 mixed trains, and 29 freight trains each week. Express and mixed trains included a baggage car, a car for African passengers, and a coach for first and second class passengers. The passenger cars carried concrete ballast in a depressed center section to minimize the possibility of wind tipping a lightly loaded car off the rails. Express trains stopped only at designated stations, but other trains would stop at intermediate points when transport was required. Equipment included:

96 low-side ore gondolas 55 high-side gondolas 20 limestone gondolas 20 boxcars 12 tank cars 4 stock cars 3 passenger coaches An executive business car with a kitchen, a bathroom, and an office convertible to a bedroom at night. There were also some self-powered steam rail cars with a coal bunker, a mail compartment, 2 compartments for Europeans, and 4 for Africans.

A special 7-tonne (6.9-long-ton; 7.7-short-ton) rail motor coach was built for an anticipated visit of Kronprinz Wilhelm in 1914. A 6-cylinder Daimler-Benz gasoline engine gave the car a speed of 38 metres per second (120 ft/s) (137 km/h or 85 mph) and the title of the fastest 2 ft (610 mm) gauge rail car. World War I prevented Wilhelm's visit, and the car was used as an inspection vehicle after the war. Two Henschel & Sohn 4-6-2 locomotives built in 1914 had disappeared during the war; but Baldwin Locomotive Works delivered a 4-6-2 in 1916. A coach converted for meal service from 1916 to 1931 is believed to be the only 2 ft (610 mm) gauge dining car ever operated. Six more Henschel & Sohn 2-8-2 were delivered in 1922. These locomotives were designated South African Railways (SAR) NG5 class. Three SAR NGG 13 Class 2-6-2+2-6-2 Garratt locomotives were used from 1927 until 1933. Henschel & Sohn delivered three SAR NG15 Class 2-8-2 locomotives in 1931. Four sleeping cars were built for the railroad in 1938; when Henschel & Sohn delivered three more 2-8-2 SAR NG15 Class. Fifteen more SAR NG15 Class 2-8-2 locomotives were delivered as three groups of five in 1949, 1952, and 1957. Purchase of additional Garratt locomotives was briefly considered in 1958 but cancelled due to the upcoming track gauge conversion to 3 ft 6 in (1,067 mm) narrow gauge.

See also Slippery rail South African Class NG 15 2-8-2 Swakopmund–Windhoek line Two foot gauge railways in South Africa Mansfeld Mining Railway: a copper ore railway in Germany White Knob Copper Electric Railway: a copper ore railway in the United States BHP Nevada Railroad: a copper ore railway in the United States

Notes

References Andrews, Dick (1991). "Extra Narrow Gauge Junction: Otavi Ry., State Northern Ry. in South Africa [sic]". Narrow Gauge and Short Line Gazette. 16 (1): 63–66. Moir, S.M. & Crittenden, H. Temple. Namib Narrow Gauge. Lingfield, Surrey, England: The Oakwood Press. Shaw, Frederic Joseph (1958). Little Railways of the World. Berkeley, California: Howell-North. OCLC 988744.

External links Documents and clippings about Otavi Mining and Railway Company in the 20th Century Press Archives of the ZBW

Illustrations

Otavi Mining and Railway Company: Steam railcar supplied to the Otavi Railway
Steam railcar supplied to the Otavi Railway
Otavi Mining and Railway Company: OMEG tank locomotive with high-side gondola near Tsumeb about 1931.
OMEG tank locomotive with high-side gondola near Tsumeb about 1931.
Otavi Mining and Railway Company: South African Railways 2 ft (610 mm) gauge SAR NGG 16 Class Garratt, preserved in operating condition on the Welsh Highland Railway. This later version of the locomotives used from 1927 to 1933 is the model considered for use in 1958.
South African Railways 2 ft (610 mm) gauge SAR NGG 16 Class Garratt, preserved in operating condition on the Welsh Highland Railway. This later version of the locomotives used from 1927 to 1933 is the model considered for use in 1958.
Otavi Mining and Railway Company: Arnold Jung Locomotive from 1905 of the Otavi Mining and Railway Company in Tsumeb, Namibia
Arnold Jung Locomotive from 1905 of the Otavi Mining and Railway Company in Tsumeb, Namibia
Otavi Mining and Railway Company: The gasoline engine "Crown Prince".
The gasoline engine "Crown Prince".

Worked examples

Example 1 — a first encounter with Otavi Mining and Railway Company

Start with the simplest possible case. Write down what Otavi Mining and Railway Company claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Otavi Mining and Railway Company before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Otavi Mining and Railway Company ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Otavi Mining and Railway Company

In research
Otavi Mining and Railway Company appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Otavi Mining and Railway Company in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Otavi Mining and Railway Company is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1900 establishments in German South West Africa, 600 mm gauge railways in Namibia, Copper mining, so understanding it makes those chapters shorter.
In everyday life
Look for Otavi Mining and Railway Company outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Otavi Mining and Railway Company in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Otavi Mining and Railway Company means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Otavi Mining and Railway Company out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Otavi Mining and Railway Company in simple terms?

The Otavi Mining and Railway Company (Otavi Minen- und Eisenbahn-Gesellschaft or OMEG) was a railway and mining company in German South West Africa (today's Namibia). It was founded on 6 April 1900 in Berlin with the Disconto-Gesellschaft and the South West Africa Company as major shareholders.

Why does Otavi Mining and Railway Company matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Otavi Mining and Railway Company?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Otavi Mining and Railway Company.

Tags

  • 1900 establishments in German South West Africa
  • 600 mm gauge railways in Namibia
  • Copper mining
  • German South West Africa
  • Mining in Namibia
  • Mining railways
  • Non-renewable resource companies established in 1900
  • Railway companies of Namibia
  • Swakopmund
  • Tsumeb

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