South African Class J 4-6-4T

Class J no. 345, c. 1950

Type and origin
Power type	Steam
Designer	South African Railways (D.A. Hendrie)
Builder	Nasmyth, Wilson and Company
Serial number	1060-1065
Model	Class J
Build date	1915
Total produced	6

Specifications
Configuration	4-6-4T (Baltic)
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 ³⁄₄ in (1,086 mm)
Trailing dia.	25 ³⁄₄ in (654 mm)
Wheelbase	27 ft 5 in (8,357 mm)
• Leading	5 ft 4 in (1,626 mm)
• Coupled	8 ft 6 in (2,591 mm)
• Trailing	5 ft 4 in (1,626 mm)
Wheel spacing (Asymmetrical)	1-2: 4 ft (1,219 mm) 2-3: 4 ft 6 in (1,372 mm)
Length:
• Over couplers	34 ft ³⁄₄ in (10,382 mm)
Height	12 ft (3,658 mm)
Axle load	11 LT 4 cwt (11,380 kg)
• Leading	9 LT 12 cwt (9,754 kg)
• 1st coupled	10 LT 10 cwt (10,670 kg)
• 2nd coupled	11 LT 4 cwt (11,380 kg)
• 3rd coupled	11 LT (11,180 kg)
• Trailing	10 LT 2 cwt (10,260 kg)
Adhesive weight	32 LT 14 cwt (33,220 kg)
Loco weight	52 LT 8 cwt (53,240 kg) w/o
Fuel type	Coal
Fuel capacity	3 LT (3.0 t)
Water cap	1,200 imp gal (5,460 l)
Firebox type	Belpaire
• Firegrate area	15 sq ft (1.4 m²)
Boiler:
• Pitch	6 ft 9 in (2,057 mm)
• Diameter	3 ft 10 ¹⁄₄ in (1,175 mm)
• Tube plates	10 ft 5 ³⁄₄ in (3,194 mm)
• Small tubes	171: 1 ³⁄₄ in (44 mm)
Boiler pressure	175 psi (1,207 kPa)
Safety valve	Ramsbottom
Heating surface	909 sq ft (84.4 m²)
• Tubes	821 sq ft (76.3 m²)
• Firebox	88 sq ft (8.2 m²)
Cylinders	Two
Cylinder size	15 in (381 mm) bore 22 in (559 mm) stroke
Valve gear	Walschaerts
Valve type	Piston
Couplers	Bell link-and-pin AAR knuckle (1950s)

Performance figures
Tractive effort	15,200 lbf (68 kN) @ 75%

Career
Operators	South African Railways
Class	Class J
Number in class	6
Numbers	341-346
Delivered	1915
First run	1915
Withdrawn	1957

The South African Railways Class J 4-6-4T of 1915 was a steam locomotive.

In 1915, the South African Railways placed six Class J tank steam locomotives with a 4-6-4 Baltic type wheel arrangement in service.^[1]^[2]^[3]^[4]

Manufacturer

D.A. Hendrie

To cope with the increasing traffic on the Natal South Coast, D.A. Hendrie, the Chief Mechanical Engineer (CME) of the South African Railways (SAR), reverted to the old Natal Government Railways preference and designed a new 4-6-4 Baltic type side-tank steam locomotive.^[1]^[2]^[5]

Six of these locomotives were built by Nasmyth, Wilson and Company of Patricroft in Salford, England, and delivered in 1915, numbered in the range from 341 to 346. They were designated Class J and were the first side-tanks to be acquired by the SAR since Union.^[1]^[2]^[5]

Characteristics

The engines used saturated steam and had Walschaerts valve gear, piston valves and Belpaire fireboxes. They were designed to work as double-enders on the Natal South Coast line, where there was limited engine turning facilities.^[1]^[2]

Service

It was soon found, however, that due to their small proportions, they were of insufficient power to handle the rapidly increasing loads on the South Coast. They were therefore taken off the South Coast run and employed as shunting engines in the Durban harbour.^[1]^[2]

Four of them were later allocated to Mossel Bay and the Cape Midland for similar duties, and remained there until they were withdrawn by 1957, after more than forty years in service. The remaining two locomotives, numbers 341 and 342, were sold to gold mines on the Reef.^[1]^[2]^[5]^[6]

By the early 1970s, no. 341 was still at work on the East Daggafontein Mine as their no. 2. It was later acquired by the South African National Railway And Steam Museum (SANRASM) for preservation. It had to be scrapped in 2011, however, after being vandalised by scavenging scrap metal thieves at the SANRASM storage site in Chamdor.^[6]^[7]

Illustration

No. 341 was plinthed at SANRASM with a tender. The picture shows it as gate guard, prior to being vandalised into destruction c. 2010.

No. 341, East Daggafontein Mine no. 2, 9 October 1989

References

1 2 3 4 5 6 Holland, D.F. (1972). Steam Locomotives of the South African Railways, Volume 2: 1910-1955 (1st ed.). Newton Abbott, Devon: David & Charles. p. 32. ISBN 978-0-7153-5427-8.
1 2 3 4 5 6 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, August 1945. pp. 595-596.
↑ South African Railways & Harbours/Suid Afrikaanse Spoorweë en Hawens (15 Aug 1941). Locomotive Diagram Book/Lokomotiefdiagramboek, 3'6" Gauge/Spoorwydte. SAR/SAS Mechanical Department/Werktuigkundige Dept. Drawing Office/Tekenkantoor, Pretoria. p. 43.
↑ South African Railways & Harbours/Suid Afrikaanse Spoorweë en Hawens (15 Aug 1941). Locomotive Diagram Book/Lokomotiefdiagramboek, 2'0" & 3'6" Gauge/Spoorwydte, Steam Locomotives/Stoomlokomotiewe. SAR/SAS Mechanical Department/Werktuigkundige Dept. Drawing Office/Tekenkantoor, Pretoria. pp. 6a-7a, 41, 43.
1 2 3 Paxton, Leith; Bourne, David (1985). Locomotives of the South African Railways (1st ed.). Cape Town: Struik. p. 33. ISBN 0869772112.
1 2 Middleton, John N. (2002). Railways of Southern Africa Locomotive Guide - 2002 (as amended by Combined Amendment List 4, January 2009) (2nd, Dec 2002 ed.). Herts, England: Beyer-Garratt Publications. p. 16.
↑ SA Rail (Official Journal of the Railway Society of Southern Africa.

Wikimedia Commons has media related to South African Class J (4-6-4T).

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

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 CGR 0-4-0ST 1881 Coffee 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's Congella Durban's Edward Innes Durban's John Milne Durban's Sir Albert Port Elizabeth 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 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

3' 6" 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 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 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 SAR Katanga SWA 2-8-0

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 John King & Miner Cape Copper Britannia Cape Copper Caledonia Cape Copper Clara Cape Copper Condenser Cape Copper Scotia Namaqua Copper Pioneer Walvis Bay 2-4-2T Hope

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

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 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

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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