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South African Class G 4-8-2T

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From Wikipedia, the free encyclopedia

1904 design of steam locomotive

NGR Class E 4-8-2T
South African Class G 4-8-2T

NGR Class E no. 250, later SAR Class G no. 197

Type and origin
Power type	Steam
Designer	Natal Government Railways (D.A. Hendrie)
Builder	North British Locomotive Company
Serial number	16060-16084
Build date	1904
Total produced	25

Specifications
Configuration:
• Whyte	4-8-2T (Mountain)
• UIC	2'D1'n2t
Driver	2nd coupled axle
Gauge	3 ft 6 in (1,067 mm)Cape gauge
Leading dia.	25+3⁄4 in (654 mm)
Coupled dia.	42 in (1,067 mm)
Trailing dia.	25+3⁄4 in (654 mm)
Wheelbase	26 ft9+1⁄2 in (8,166 mm)
• Leading	5 ft 4 in (1,626 mm)
• Coupled	11 ft 9 in (3,581 mm)
Length:
• Over couplers	35 ft 5 in (10,795 mm)
Height	12 ft5+5⁄8 in (3,800 mm)
Frame type	Plate
Axle load	11 LT 10 cwt (11,680 kg)
• Leading	11 LT 12 cwt (11,790 kg)
• 1st coupled	10 LT 7 cwt 2 qtr (10,540 kg)
• 2nd coupled	11 LT 10 cwt (11,680 kg)
• 3rd coupled	10 LT 9 cwt (10,620 kg)
• 4th coupled	10 LT 6 cwt 2 qtr (10,490 kg)
• Trailing	6 LT 1 cwt (6,147 kg)
Adhesive weight	42 LT 13 cwt (43,330 kg)
Loco weight	109,080 lb (49,480 kg) empty 60 LT 6 cwt (61,270 kg)
Fuel type	Coal
Fuel capacity	2 LT 10 cwt (2.5 t)
Water cap.	1,560 imp gal (7,090 L)
Firebox:
• Type	Round-top
• Grate area	19 sq ft (1.8 m²)
Boiler:
• Pitch	7 ft (2,134 mm)
• Diameter	4 ft4+7⁄8 in (1,343 mm)
• Tube plates	10 ft 4 in (3,150 mm)
• Small tubes	232:1+3⁄4 in (44 mm)
Boiler pressure	175 psi (1,207 kPa)
Safety valve	Ramsbottom
Heating surface:
• Firebox	125 sq ft (11.6 m²)
• Tubes	1,098 sq ft (102.0 m²)
• Total surface	1,223 sq ft (113.6 m²)
Cylinders	Two
Cylinder size	18 in (457 mm) bore 22 in (559 mm) stroke
Valve gear	Stephenson
Valve type	Balanced slide
Couplers	Johnston link-and-pin AAR knuckle (1930s)

Performance figures
Tractive effort	22,280 lbf (99.1 kN) @ 75%

Career
Operators	Natal Government Railways South African Railways
Class	NGR Class E, SAR Class G
Number in class	25
Numbers	NGR 250-274, SAR 197-221
Delivered	1904
First run	1904
Withdrawn	1962

The leading coupled axle had flangeless wheels

TheSouth African Railways Class G 4-8-2T of 1904 was a steam locomotive from the pre-Union era in theColony of Natal.

In 1904, theNatal Government Railways placed 25 Class E4-8-2T tanksteam locomotives in service. In 1912, when these locomotives were assimilated into theSouth African Railways, they were renumbered and designatedClass G.^[1]^[2]^[3]^[4]

Manufacturer

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The first locomotive to be designed for the Natal Government Railways (NGR) by D.A. Hendrie, who had succeeded G.W. Reid as Locomotive Superintendent of the NGR on 8 January 1903, was a4-8-2 tank locomotive. It was built by the newly establishedNorth British Locomotive Company (NBL) in the former Dübs shops in Glasgow, Scotland.^[1]^[2]^[5]

Twenty-five of these locomotives were delivered in 1904, numbered in the range from 250 to 274. Until they were designated Class E at some stage between 1904 and 1908, they were known on the NGR as the Dübs B or Improved Dübs, even thoughDübs and Company had already ceased to exist when the locomotives were built, having been merged into the NBL.^[1]^[2]^[5]^[6]

Characteristics

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The locomotive was intended for use on mainline work and Hendrie used theReid Tenwheeler (NGR Class C) and theDübs A (NGR Class D) as basis for its design. The result was an engine which looked like a smaller version of the Reid Tenwheeler locomotive. With a larger boiler and working at a higher boiler pressure, the Class E was a more powerful locomotive than the NGR Class D, but Hendrie had made no radical changes in the basic design to the work of his predecessors.^[1]

The engine had inclined cylinders, arranged outside the plate frames. Itsbalanced slide valves were arranged above the cylinders and were actuated by Stephenson link motion through rocker shafts. The locomotives were the first in South Africa to have "H" section coupling rods and connecting rods.^[2]

South African Railways

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When theUnion of South Africa was established on 31 May 1910, the three Colonial government railways (Cape Government Railways, NGR andCentral South African Railways) 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 were only implemented with effect from 1 January 1912.^[4]^[7]

In 1912, these locomotives were designated Class G on the South African Railways (SAR) and renumbered in the range from 197 to 221.^[2]^[4]^[8]

Service

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The locomotives entered service working the mainline passenger Corridor Trains out of Durban, but they were soon replaced by theNGR Class B4-8-0 tender locomotives, Hendrie's second locomotive design, which entered service later in 1904. They were then used as banking engines fromLadysmith up theVan Reenen Pass on the rail connection between Natal andHarrismith in theOrange River Colony. They remained in use there as well as in general service on some of the heavier branch lines until the loads became too heavy for them.^[1]^[2]^[8]

By 1944, six of them were still working in light shunting at various marshalling yards in the Union. The last pair were withdrawn from shunting service aroundPietermaritzburg in 1962. Several were sold to mines and other industrial concerns.^[1]^[2]^[8]

Preservation

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The last of the Class to be built, ex NGR no. 274, SAR no. 221, was moved from Millsite inKrugersdorp to theOuteniqua Transport Museum in George during August 2014. another G class NLC 2 survives at Witbank Loco Depot.

No. 221 upon delivery to the Outeniqua Transport Museum in August 2014

References

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Wikimedia Commons has media related toSouth African Class G 4-8-2T.

^^a ^b ^c ^d ^e ^fHolland, D.F. (1971).Steam Locomotives of the South African Railways. Vol. 1: 1859–1910 (1st ed.). Newton Abbott, England:David & Charles. p. 99.ISBN 978-0-7153-5382-0.
^^a ^b ^c ^d ^e ^f ^gEspitalier, T.J.; Day, W.A.J. (1944).The Locomotive in South Africa – A Brief History of Railway Development. Chapter III – Natal Government Railways (Continued). South African Railways and Harbours Magazine, July 1944. pp. 503–504.
^South African Railways and Harbours Locomotive Diagram Book, 2'0" & 3'6" Gauge Steam Locomotives, 15 August 1941, pp21 & 21A, as amended
^^a ^b ^cClassification of S.A.R. Engines with Renumbering Lists, issued by the Chief Mechanical Engineer's Office, Pretoria, January 1912, pp. 7, 11, 13, 22 (Reprinted in April 1987 by SATS Museum, R.3125-6/9/11-1000)
^^a ^bThe Railway Report for year ending 31 Dec. 1908, Natal Government Railways, p. 39, par 14.
^North British Locomotive Company works list, compiled by Austrian locomotive historian Bernhard Schmeiser
^The South African Railways – Historical Survey. Editor George Hart, Publisher Bill Hart, Sponsored by Dorbyl Ltd., Published c. 1978, p. 25.
^^a ^b ^cPaxton, Leith; Bourne, David (1985).Locomotives of the South African Railways (1st ed.). Cape Town: Struik. p. 31.ISBN 0869772112.

v t e Locomotives ofNatal
4' 8½" gauge	Natal 0-4-0STDurban Natal 0-4-0WTNatal Natal 4-4-0TPerseverance
3' 6" gauge	Durban'sCongella Durban'sEdward Innes Durban'sJohn Milne Durban'sSir Albert NGR Class A 1905 NGR Class A 1910 NGR Class B 4-8-0 1904 NGR Class B 4-8-0 1910 NGR Class B 4-8-2 1906 NGR Class B 4-8-2 1909 NGR Class B 4-8-2 1910 NGR Class C 4-8-2T NGR Class C 4-10-2T NGR Class D NGR Class E NGR Class F NGR Class G NGR Class H 4-6-2T NGR Class H 4-6-4T NGR Class I 2-6-0 NGR Class I 2-6-2T NGR Class K 0-4-0ST NGR Class K 0-6-0ST NGR Class K 2-6-0T NGR Class L 4-8-0 NGRDurban &Pietermaritzburg NGRHavelock NGR Mallet 1909 NGR Mallet 1910
2' gauge	NGR Class N 1906 NGR Class N 1907 NGR Class N 1911
Natal Government Railways List of South African locomotive classes South African locomotive history

Locomotives of South Africa

Steam

7' ¼" gauge	East London 0-4-0VB Table Bay 0-4-0ST Table Bay 0-4-0T Table Bay 0-4-0WT
Standard gauge	Cape 0-4-0TBlackie Cape 0-4-2 Cape 2-4-0T CGR 0-4-0STAid Natal 0-4-0STDurban Natal 0-4-0WTNatal Natal 4-4-0TPerseverance
Cape gauge Tank engines	CGR 0-4-0ST 1873 CGR 0-4-0ST 1874 CGR 0-4-0ST 1881 CGR 0-4-0ST 1881Coffee Pot CGR 0-6-0ST CGR 0-6-0T 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 CGR 1st Class 4-4-0T CGR 2nd Class 4-4-0T CGR 3rd Class 2-6-0T CGR Railmotor CSAR Class C CSAR Class E CSAR Rack 4-6-4RT CSAR Railmotor Durban'sCongella Durban'sEdward Innes Durban'sJohn Milne Durban'sSir Albert Port Elizabeth 0-4-0ST Kowie Railway 0-6-0T Kowie Railway 4-4-0T Metropolitan & Suburban 4-6-2T NGR 2-6-0TDurban &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 TonnerPortuguese 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 Railmotor SAR Dock 0-4-0ST SAR Dock 0-4-0T SWA 2-8-0T
Cape gauge Tender engines	CGR 1st Class 2-6-0 1876 BP 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 CGR 1st Class 4-4-0TT CGR 2nd Class 2-6-2TT 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 1882 Joy CGR 4th Class 4-6-0TT 1884 CGR 5th Class 4-6-0 1890 CGR 5th Class 4-6-0 1891 NGRHavelock 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 1928 SAR Class 16DA 1930 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 SARKatanga SWA 2-8-0
Cape 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 CopperJohn King &Miner Cape CopperBritannia Cape CopperCaledonia Cape CopperClara Cape Copper Condenser Cape CopperScotia Namaqua CopperPioneer Walvis Bay 2-4-2THope
2' & 600mm gauges	ACR Class NG-G16A CGR NG 0-4-0T CGR NG 0-6-0T CGR NG 4-6-2T CGR Type A 2-6-4T CGR Type C 0-4-0T NGR Class N 4-6-2T SAR Dutton SAR NG 0-4-0T 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 SWA Class Ha SWA Class Hb SWA Class Hc SWA Class Hd SWA Jung SWA Zwillinge

Electric

Amcoal Class E38

Gas-electric

SAR Gas-electric

Diesel

Cape 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 TFR Class 35-800 SAR Class 36-000 SAR Class 36-200 SAR Class 37-000 Spoornet Class 39-000 TFR Class 39-200 TFR Class 43-000 TFR Class 44-000 TFR Class 45-000
2' gauge Diesel–electric	SAR Class 91-000
Cape gauge Diesel–hydraulic	SAR Class 61-000
Cape gauge Electro-diesel	Spoornet Class 38-000

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