South African Katanga Mikado 2-8-2

South African Katanga Mikado 2-8-2
Bas Congo á Katanga Class 201

Builder's picture of Katanga Mikado no. 201, c. 1917

Type and origin
Power type	Steam
Designer	H.K. Porter, Inc
Builder	H.K. Porter, Inc
Serial number	5993-6016
Model	BCK Class 200
Build date	1917
Total produced	24

Specifications
Configuration	2-8-2 (Mikado)
Driver	3rd coupled axle
Gauge	3 ft 6 in (1,067 mm) Cape gauge
Coupled dia.	44 in (1,118 mm)
Wheelbase	16,527 mm (54 ft 2.67 in)
• Engine	27 ft (8,230 mm)
• Coupled	12 ft 6 in (3,810 mm)
• Tender	5,485 mm (17 ft 11.94 in)
• Tender bogie	1,625 mm (5 ft 3.98 in)
Length:
• Over beams	18,230 mm (59 ft 9.72 in)
Frame type	Plate
Axle load	13 LT 12 cwt (13,820 kg)
Adhesive weight	122,000 lb (55,340 kg)
Loco weight	152,000 lb (68,950 kg)
Fuel type	Wood
Firebox type	Round-top
• Firegrate area	36.7 sq ft (3.41 m²)
Boiler:
• Pitch	2,897 mm (9 ft 6.06 in)
• Tube plates	5,087 mm (200.28 in)
• Small tubes	236: 51 mm (2.01 in)
Boiler pressure	210 psi (1,448 kPa)
Heating surface	2,180 sq ft (203 m²)
• Tubes	2,059.5 sq ft (191.33 m²)
• Firebox	120.5 sq ft (11.19 m²)
Cylinders	Two
Cylinder size	19 in (483 mm) bore 22 in (559 mm) stroke
Valve gear	Walschaerts
Valve type	Slide
Couplers	Bell link-and-pin (SAR)

Performance figures
Tractive effort	32,219 lbf (143.32 kN) @ 75%
Factor of adh	3.79

Career
Operators	South African Railways Beira & Mashonaland & Rhodesia CF du Bas Congo á Katanga
Class	BCK 201
Number in class	SAR 4 or 6
Numbers	BCK 201-224
Nicknames	Katanga Mikado
Delivered	1917
First run	1917

The South African Railways Katanga Mikado 2-8-2 of 1917 was a steam locomotive.

In 1917, the South African Railways placed at least four 2-8-2 Mikado type steam locomotives in service. They had been built for the Chemins de Fer du Bas Congo á Katanga in the Belgian Congo and were obtained on temporary lease, to alleviate the critical shortage of locomotives as a result of the First World War's disruption of locomotive production in Europe and the United Kingdom.^[1]^[2]

First World War

As a result of the disruption caused by the First World War, no new Cape Gauge locomotives could be introduced on the South African Railways (SAR) during 1916 and, by 1917, the rolling stock position was rapidly becoming critical, particularly regarding locomotives. New engines were almost unobtainable and spare parts so scarce that repairs and general overhauls had to be postponed to the utmost to keep engines in service. By March 1919, after the end of the war, 187 new locomotives and fourteen spare tenders were on order or authorised.^[1]^[2]

Manufacturer

To partly alleviate the locomotive shortage, the SAR was able to lease four (six according to one source) of twenty-four new 200 Class 2-8-2 Mikado type tender steam locomotives, which were built by H.K. Porter, Inc. of Pittsburgh, Pennsylvania between June and October 1917 for the Chemins de Fer du Bas Congo á Katanga (BCK) in the Belgian Congo.^[1]^[2]^[3]^[4]^[5]

Six more of these engines were leased to the Beira and Mashonaland and Rhodesia Railways (BMR), which operated between Umtali in Southern Rhodesia and Beira in Mozambique and which also experienced a critical shortage of motive power. The locomotives were numbered in the BCK range from 201 to 224, but the engine numbers of the individual locomotives which were leased to the SAR and BMR are not known.^[3]

The arrangement was probably made possible because construction of the Congolese line from the Northern Rhodesian border to Port Francqui, for which the locomotives were intended, was just being completed at the time and the full complement of locomotives were not required immediately by the BCK.^[6]

Characteristics

The locomotives used saturated steam and had Walschaerts valve gear with slide valves. Like many other Central African locomotives of the day, they were wood-burners and some modifications were required to adapt them to coal-burning on the SAR. In addition, their tenders and brake gear had been lost at sea and they had to be fitted with SAR tenders, which were pirated from unserviceable engines awaiting or undergoing repair. The required engine brake gear was designed in the Pretoria drawing office and manufactured in the Salvokop workshops.^[1]^[2]^[3]^[6]

Service

No. 206 at Lubumbashi, 2 February 1972

Even though the Katanga Mikados were considered to be of rather light construction, they proved to be extremely useful during that time of crisis. They were all forwarded to the Belgian Congo after the war.^[1]

Eighteen of these locomotives were rebuilt with piston valves and superheated boilers in the 1930s. The superheated locomotives were reclassified 250 Class and renumbered in the range from 251 to 268. In 1955, more renumbering took place, with the remaining saturated steam engines being renumbered in the range from 219 to 224 and the superheated engines in the range from 201 to 218, again as 200 Class. The superheated engines survived to the end of steam in the Congo in the early 1970s, being employed on both shunting and line working.

References

1 2 3 4 5 Holland, D.F. (1972). Steam Locomotives of the South African Railways, Volume 2: 1910-1955 (1st ed.). Newton Abbott, Devon: David & Charles. p. 32-33. ISBN 978-0-7153-5427-8.
1 2 3 4 Espitalier, T.J.; Day, W.A.J. (1945). The Locomotive in South Africa - A Brief History of Railway Development. Chapter VII - South African Railways (Continued). South African Railways and Harbours Magazine, September 1945. p. 673.
1 2 3 Unknown author. The Katanga "Mikados". Article in unknown publication, date unknown, p. 194.
↑ Roy V. Wright (ed.) (1922). Locomotive Cyclopedia of American Practice. Sixth Edition. Simmons-Boardman Publishing Company, Woolworth Building, New York N.Y. (Accessed on 16 April 2016)
↑ Roy V. Wright (ed.) (1922). Locomotive Cyclopedia of American Practice - Foreign and Industrial Locomotives. Sixth Edition. Simmons-Boardman Publishing Company, Woolworth Building, New York N.Y. p. 1012. (Accessed on 16 April 2016)
1 2 C.F. du Bas Congo a Katanga 2-8-2 Locomotives of Congo - Class Details by Steve Llanso of Sweat House Media - Class 201 (Locobase 15020) (Accessed on 16 April 2016)

Wikimedia Commons has media related to South African Katanga Mikado 2-8-2.

Locomotives of South Africa

Steam

7' ¼" gauge	East London Harbour 0-4-0 Table Bay Harbour 0-4-0ST Table Bay Harbour 0-4-0T Table Bay Harbour 0-4-0WT

4' 8½" gauge	Cape 0-4-0T Blackie Cape 0-4-2 Cape 2-4-0T CGR 0-4-0ST Aid Natal 0-4-0ST Durban Natal 0-4-0WT Natal Natal 4-4-0T Perseverance

3' 6" gauge Tank engines	CGR 0-4-0ST 1873 CGR 0-4-0ST 1874 CGR 0-4-0ST 1881 Coffee Pot CGR 0-6-0ST 1902 CGR 0-6-0T 1876 Back-to-Back CGR 2-6-0ST 1900 CGR 2-6-0ST 1902 CGR 1st Class 0-4-0ST 1875 CGR 1st Class 0-4-0ST 1876 CGR 1st Class 2-6-0ST 1876 CGR 1st Class 4-4-0T 1875 CGR 2nd Class 4-4-0T 1882 CGR 3rd Class 2-6-0T CGR Railmotor CSAR Class C CSAR Class E CSAR Rack CSAR Railmotor DSWA Eight-Coupled Tank 2-8-0T Durban's Congella Durban's Edward Innes Durban's John Milne Durban's Sir Albert Port Elizabeth Harbour 0-4-0ST Kowie Railway 0-6-0T Kowie Railway 4-4-0T Metropolitan & Suburban 4-6-2T NGR 2-6-0T Durban & Pietermaritzburg NGR Class I 2-6-2T NGR Class K 0-4-0ST NGR Class K 0-6-0ST NGR Class K 2-6-0T NZASM 10 Tonner NZASM 13 Tonner NZASM 14 Tonner NZASM 18 Tonner NZASM 19 Tonner NZASM 32 Tonner NZASM 40 Tonner PPR 26 Tonner PPR 35 Tonner Portuguese SAR 0-4-0ST 1903 SAR 0-4-0T no. 69 SAR Class A SAR Class B SAR Class C SAR Class C1 SAR Class C2 SAR Class D SAR Class E SAR Class F SAR Class G SAR Class H SAR Class H1 SAR Class H2 SAR Class J SAR Class K SAR Clayton

3' 6" gauge Tender engines	CGR 1st Class 2-6-0 1876 Beyer, Peacock CGR 1st Class 2-6-0 1876 Kitson CGR 1st Class 2-6-0 1879 CGR 1st Class 2-6-0 1891 CGR 1st Class 4-4-0 1879 CGR 1st Class 4-4-0TT 1881 CGR 2nd Class 2-6-2TT 1875 CGR 3rd Class 4-4-0 1883 CGR 3rd Class 4-4-0 1884 CGR 3rd Class 4-4-0 1889 CGR 3rd Class 4-4-0 1898 CGR 3rd Class 4-4-0 1901 CGR 3rd Class 4-4-0 1903 CGR 4th Class 4-4-2 CGR 4th Class 4-6-0TT 1880 CGR 4th Class 4-6-0TT 1882 CGR 4th Class 4-6-0TT Joy 1882 CGR 4th Class 4-6-0TT 1884 CGR 5th Class 4-6-0 1890 CGR 5th Class 4-6-0 1891 DSWA Eight-Coupled Tender 2-8-0 NGR Havelock NGR Class I SAR Class Exp 1 SAR Class Exp 2 SAR Class Exp 3 SAR Class Exp 4 SAR Class Exp 5 SAR Class Exp 6 SAR Class S SAR Class S1 SAR Class S2 SAR Class 1 SAR Class 1A SAR Class 1B SAR Class 2 SAR Class 2C SAR Class 3 SAR Class 3A SAR Class 3B SAR Class 4 SAR Class 4A SAR Class 5 SAR Class 5A SAR Class 5B SAR Class 6 SAR Class 6A SAR Class 6B SAR Class 6C SAR Class 6D SAR Class 6E SAR Class 6F SAR Class 6G SAR Class 6H SAR Class 6J SAR Class 6K SAR Class 6L SAR Class 6Y SAR Class 6Z SAR Class 7 SAR Class 7A SAR Class 7B SAR Class 7C SAR Class 7D SAR Class 7E SAR Class 7F SAR Class 8 SAR Class 8A SAR Class 8B SAR Class 8C SAR Class 8D SAR Class 8E SAR Class 8F SAR Class 8R SAR Class 8X SAR Class 8Y SAR Class 8Z SAR Class 9 SAR Class 10 SAR Class 10A SAR Class 10B SAR Class 10C SAR Class 10D SAR Class 11 SAR Class 12 SAR Class 12A SAR Class 12B SAR Class 13 SAR Class 14 SAR Class 14A SAR Class 14B SAR Class 14C 1st SAR Class 14C 2nd SAR Class 14C 3rd SAR Class 14C 4th SAR Class 15 SAR Class 15A SAR Class 15B SAR Class 15C SAR Class 15CA SAR Class 15E SAR Class 15F SAR Class 16 SAR Class 16A SAR Class 16B SAR Class 16C SAR Class 16D SAR Class 16DA SAR Class 16E SAR Class 17 SAR Class 18 SAR Class 19 SAR Class 19A SAR Class 19B SAR Class 19C SAR Class 19D SAR Class 20 SAR Class 21 SAR Class 23 SAR Class 24 SAR Class 25 SAR Class 25NC SAR Class 26 SAR Katanga

3' 6" gauge Articulated engines	CGR Fairlie CGR Kitson-Meyer SAR Class FC SAR Class FD SAR Class GA SAR Class GB SAR Class GC SAR Class GCA SAR Class GD SAR Class GDA SAR Class GE SAR Class GEA SAR Class GF SAR Class GG SAR Class GH SAR Class GK SAR Class GL SAR Class GM SAR Class GMA SAR Class GO SAR Class HF SAR Class KM SAR Class MA SAR Class MB SAR Class MC SAR Class MC1 SAR Class MD SAR Class ME SAR Class MF SAR Class MG SAR Class MH SAR Class MJ SAR Class MJ1 SAR Class U

2' 6" gauge	Cape Copper 0-6-0T 1871 Cape Copper Britannia Cape Copper Caledonia Cape Copper Clara Cape Copper Condenser Cape Copper Scotia Namaqua Copper Pioneer

2' & 600mm gauges	ACR Class NG-G16A CGR NG 0-6-0T CGR NG 4-6-2T CGR Type A 2-6-4T CGR Type C 0-4-0T DSWA Class Ha DSWA Class Hb DSWA Class Hc DSWA Class Hd DSWA Jung DSWA Zwillinge NGR Class N 4-6-2T SAR Dutton SAR NG 0-4-0T 1899 SAR Class NG1 SAR Class NG2 SAR Class NG3 SAR Class NG4 SAR Class NG5 SAR Class NG6 SAR Class NG7 SAR Class NG8 SAR Class NG9 SAR Class NG10 SAR Class NG-G11 SAR Class NG-G12 SAR Class NG-G13 SAR Class NG-G14 SAR Class NG15 SAR Class NG-G16

Electric

Amcoal Class E38

Gas-electric

Gas-electric

Diesel

3' 6" gauge Diesel-electric	PRASA Class Afro 4000 SAR Class DS SAR Class DS1 SAR Class 31-000 SAR Class 32-000 SAR Class 32-200 SAR Class 33-000 SAR Class 33-200 SAR Class 33-400 SAR Class 34-000 SAR Class 34-200 SAR Class 34-400 SAR Class 34-500 SAR Class 34-600 SAR Class 34-800 SAR Class 34-900 SAR Class 35-000 SAR Class 35-200 SAR Class 35-400 SAR Class 35-600 SAR Class 36-000 SAR Class 36-200 SAR Class 37-000 Spoornet Class 39-000 TFR Class 35-800 TFR Class 39-200 TFR Class 43-000 TFR Class 44-000

2' gauge Diesel-electric	SAR Class 91-000

3' 6" gauge Diesel-hydraulic	SAR Class 61-000

3' 6" gauge Electro-diesel	Spoornet Class 38-000

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