South African Class NG1 0-4-0T

CSAR Pankop 0-4-0T
South African Class NG1 0-4-0T

Class NG1 no. NG40, with a sack of coal on the running board

Type and origin
Power type	Steam
Designer	Kerr, Stuart and Company
Builder	Kerr, Stuart and Company
Serial number	676-677
Model	S1 Sirdar
Build date	1899
Total produced	2

Specifications
Configuration	0-4-0T (Four-coupled)
Driver	2nd coupled axle
Gauge	600 mm (1 ft 11 ⁵⁄₈ in) narrow
Coupled dia.	24 in (610 mm)
Wheelbase	3 ft 6 in (1,067 mm)
Length:
• Over couplers	13 ft 6 in (4,115 mm)
Height	8 ft 9 in (2,667 mm)
Frame type	Plate
Axle load	3 LT 2 cwt 2 qtr (3,175 kg) av.
• Coupled	3 LT 2 cwt 2 qtr (3,175 kg) each
Adhesive weight	6 LT 5 cwt (6,350 kg)
Loco weight	6 LT 5 cwt (6,350 kg) w/o
Fuel type	Coal
Fuel capacity	5 long hundredweight (0.3 t)
Water cap	90 imp gal (409 l)
Firebox type	Round-top
• Firegrate area	3.3 sq ft (0.31 m²)
Boiler:
• Pitch	4 ft 4 ³⁄₄ in (1,340 mm)
• Diameter	2 ft (610 mm)
• Tube plates	5 ft 1 ¹⁄₂ in (1,562 mm)
Boiler pressure	140 psi (965 kPa)
Safety valve	Ramsbottom
Heating surface	100 sq ft (9.3 m²)
• Tubes	83.5 sq ft (7.76 m²)
• Firebox	16.5 sq ft (1.53 m²)
Cylinders	Two
Cylinder size	6 in (152 mm) bore 10 in (254 mm) stroke
Valve gear	Stephenson

Performance figures
Tractive effort	1,575 lbf (7.01 kN) @ 75%

Career
Operators	British War Office Central South African Railways South African Railways
Class	SAR Class NG1
Number in class	2
Numbers	CSAR 676-677, SAR NG40-NG41
Nicknames	Pankop
Delivered	1900
First run	1900
Withdrawn	1931

The South African Railways Class NG1 0-4-0T of 1900 was a narrow gauge steam locomotive from the pre-Union era in the Transvaal.

In 1900, the British War Office placed two Sirdar class 0-4-0T narrow gauge tank steam locomotives in service near Germiston. At the end of the Second Boer War, the locomotives were sold to a farmer, who used them on a firewood line out of Pienaarsrivier, until the line and locomotives were taken over by the Central South African Railways.^[1]

In 1912, when these locomotives were assimilated into the South African Railways, they were renumbered with an "NG" prefix to their numbers. When a system of grouping narrow gauge locomotives into classes was eventually introduced somewhere between 1928 and 1930, they were designated Class NG1.^[1]^[2]

Manufacturer

Three Sirdar class 0-4-0T narrow gauge tank steam locomotives were built for Allan Alderson and Company of Cairo, for use during the Nile Barrage construction in Egypt. In November 1899, the Director of Army Contracts of the British War Office ordered two narrow gauge steam locomotives from Kerr, Stuart and Company, for delivery within ten days, since the locomotives were urgently needed by the Royal Engineers for use in a siege park in the Zuid-Afrikaansche Republiek, where the Second Boer War was in progress. A siege park was a depot for holding engineer’s stores, which could be required during a siege.^[1]^[3]

By diverting two of the three locomotives which were ready to be shipped out to the Nile Barrage construction works in Egypt, the locomotive builders were actually able to supply the locomotives within four days.^[1]

600 and 610 millimetre gauges

The locomotives had plate frames and used Stephenson valve gear. Although they were eventually classified as 2 ft (610 mm) narrow gauge locomotives along with the rest of the South African narrow gauge locomotive fleet, they were actually constructed to the metric 600 mm (1 ft 11 ⁵⁄₈ in) gauge.^[3]

Historically, the actual two feet narrow gauge rail spacing depended on whether or not the track was laid by a metricised country. German-built narrow gauge lines in Deutsch-Südwest-Afrika (DSWA, now Namibia) were therefore 600 mm (1 ft 11 ⁵⁄₈ in) gauge, while those in South Africa, built to Imperial standards, were 2 ft (610 mm) gauge.^[4]

In practice, however, the two gauges are still treated as one and the same by, for example, the British Military. The same applied in the Zuid-Afrikaansche Republiek, which was being invaded by the British Army at the time. The 10 millimetres (0.39 inches) difference was considered as insignificant and, in subsequent years, narrow gauge locomotives regularly migrated between the narrow gauge lines laid to German standards in South West Africa (SWA) and those laid to Imperial standards in South Africa.^[4]

Service

Royal Engineers

During 1900, these two locomotives were used by the 47th Field Company Royal Engineers during the construction of the Bezuidenhout Light Railway, a light narrow gauge railway line from Simmer and Jack’s siding near Germiston to a siege camp, 3.5 kilometres (2.2 miles) away along the Bezuidenhout Valley.^[1]

Pankop firewood line

At the end of the war in 1902, the two locomotives and rolling stock were sold to a farmer as army surplus stock. He used it to haul firewood on a 15 kilometres (9 miles) long line which he constructed from Pienaarsrivier, on the mainline between Pretoria and Pietersburg, to Pankop on the Springbokvlakte.^[1]

Central South African Railways

The Pankop line and rolling stock were taken over by the Central South African Railways (CSAR) in 1905. The CSAR extended the line to Settlers and opened the 26 miles 60 chains (43 kilometres) line to traffic on 21 June 1906. The intention was, on the one hand, to serve the immigrant farming community around Settlers and, on the other hand, to determine exactly how much a light railway of this nature could achieve in districts where the traffic would be light at the outset. In CSAR service, the locomotives became known as the Pankop engines and were referred to by their builder's works numbers 676 and 677. They were often coupled back-to-back to cope with heavier loads.^[1]^[5]^[6]

South African Railways

When the Union of South Africa was established on 31 May 1910, the three Colonial government railways (Cape Government Railways, Natal Government Railways and CSAR) were united under a single administration to control and administer the railways, ports and harbours of the Union. Although the South African Railways and Harbours came into existence in 1910, the actual classification and renumbering of all the rolling stock of the three constituent railways required careful planning and was only implemented with effect from 1 January 1912.^[6]^[7]

Narrow gauge locomotives were included in the SAR’s narrow gauge numbering scheme in 1912 and were allocated engine numbers with an "NG" prefix. A system of grouping narrow gauge locomotives into classes was only adopted at some time between 1928 and 1930 and, at that point, the two Sirdar locomotives were classified as Class NG1.^[1]

When the Settlers branchline was converted to Cape gauge in 1923, the locomotives were transferred to work on the line which was under construction between Elandshoek and Mount Carmel. When this line was closed in 1931, the Class NG1 locomotives were withdrawn from service.^[1]

References

1 2 3 4 5 6 7 8 9 Paxton, Leith; Bourne, David (1985). Locomotives of the South African Railways (1st ed.). Cape Town: Struik. pp. 99–100, 110. ISBN 0869772112.
↑ South African Railways and Harbours Narrow Gauge Locomotive Diagram Book, 2’0” Gauge, S.A.R. Mechanical Dept. Drawing Office, Pretoria, 28 November 1932
1 2 Kerr, Stuart and Company works list
1 2 Design and Maintenance Guide 09 – Permanent Way, Defence Estate Organisation, July 1997, Ministry of Defence, London : The Stationery Office, pp. 66-73. ISBN 0-11-772881-0.
↑ Espitalier, T.J.; Day, W.A.J. (1945). The Locomotive in South Africa - A Brief History of Railway Development. Chapter VI - Imperial Military Railways and C.S.A.R. (Continued). South African Railways and Harbours Magazine, March 1945. pp. 185-186.
1 2 Classification of S.A.R. Engines with Renumbering Lists, issued by the Chief Mechanical Engineer’s Office, Pretoria, January 1912, pp. 16, 47 (Reprinted in April 1987 by SATS Museum, R.3125-6/9/11-1000)
↑ The South African Railways - Historical Survey. Editor George Hart, Publisher Bill Hart, Sponsored by Dorbyl Ltd., Published c. 1978, p. 25.

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Locomotives of the Central South African Railways

3' 6" gauge	CSAR 0-6-0ST 1896 CSAR 4-6-0T 1887 CSAR Class 6-L1 CSAR Class 6-L2 CSAR Class 6-L3 CSAR Class 7 CSAR Class 8-L1 CSAR Class 8-L2 CSAR Class 8-L3 CSAR Class 9 CSAR Class 10 1904 CSAR Class 10 1910 CSAR Class 10-2 Saturated CSAR Class 10-2 Superheated CSAR Class 10-C CSAR Class 11 CSAR Class B 0-6-4T CSAR Class C 2-8-4T CSAR Class D CSAR Class E 4-8-0TT CSAR Class E 4-8-2T CSAR Class E 4-10-2T CSAR Class F CSAR Class M CSAR Mallet Saturated CSAR Mallet Stoker CSAR Mallet Superheated CSAR Rack 4-6-4T CSAR Railmotor IMR 0-6-0ST 1896 IMR 4-6-0T 1887 IMR 46 Tonner 0-6-4T IMR 55 Tonner 2-6-4T IMR 7th Class 4-8-0 IMR 8th Class 4-8-0 IMR Reid Tenwheeler 4-10-2T IMR Western Australian 2-8-4T NZASM 10 Tonner NZASM 13 Tonner NZASM 14 Tonner NZASM 18 Tonner NZASM 19 Tonner NZASM 32 Tonner NZASM 40 Tonner NZASM 46 Tonner OVGS 1st Class 4-4-0TT OVGS 2nd Class 2-6-0 OVGS 2nd Class 2-6-0ST OVGS 3rd Class 4-4-0 OVGS 4th Class G 4-6-0 OVGS 5th Class K 4-6-0 1890 OVGS 5th Class K 4-6-0 1891 OVGS 6th Class L 4-6-0 OVGS 6th Class L2 4-6-0 OVGS 6th Class L3 4-6-0 PPR 0-4-0ST Natal PPR 26 Tonner PPR 35 Tonner Portuguese PPR 55 Tonner

2' gauge	CSAR Pankop

List of South African locomotive classes South African locomotive history

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 Railmotor

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 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 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 Red Devil

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 Class Cape Copper Condenser Cape Copper Scotia Class 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 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

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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