CGR 3rd Class 4-4-0 1903

CGR 3rd Class 4-4-0 1903
to South African Class 03 4-4-0 1903

CGR 3rd Class 4-4-0 of 1903 "Wynberg Tender"
Type and origin
Power type Steam
Designer Cape Government Railways
Builder Sharp, Stewart and Company
Serial number 4969-4976
Build date 1903
Total produced 8
Specifications
Configuration 4-4-0 "American"
Gauge 3 ft 6 in (1,067 mm) Cape gauge
Leading wheel
diameter
28 12 in (724 mm)
Driver diameter 60 in (1,520 mm)
Wheelbase 7 ft 6 in (2.286 m) coupled
5 ft 3 in (1.600 m) bogie
20 ft 12 in (6.109 m) engine
10 ft (3.048 m) tender
41 ft 5 34 in (12.643 m) total
Length 50 ft 2 12 in (15.304 m) over couplers
Height 12 ft 10 in (3.912 m)
Axle load 14 1520 long tons (15.0 t) 2nd driver
Weight on drivers 29 320 long tons (29.6 t)
Locomotive weight 41 1220 long tons (42.3 t) w/o
Tender weight 31 720 long tons (31.9 t) w/o
Locomotive and tender
combined weight
72 1920 long tons (74.1 t) w/o
Tender type Three-axle, 37 in (940 mm) wheels
Fuel type Coal
Fuel capacity 5 long tons (5.1 t)
Water capacity 2,470 imp gal (11,200 l; 2,970 US gal)
Boiler 10 ft 0 38 in (3.058 m) length inside
7 ft (2.134 m) pitch
Boiler pressure 180 psi (1,200 kPa)
Firegrate area 18 sq ft (1.672 m2)
Heating surface:
– Tubes
910 sq ft (84.542 m2)
– Firebox 109 sq ft (10.1 m2)
– Total 1,019 sq ft (94.7 m2)
Cylinders Two
Cylinder size 17 12 in (444 mm) bore
24 in (610 mm) stroke
Valve gear Stephenson
Performance figures
Tractive effort 16,540 lbf (74 kN) at 75% pressure
Career
Operator(s) Cape Government Railways
South African Railways
Class CGR 3rd Class, SAR Class 03
Number in class 8
Number(s) 1, 21, 29-30, 45, 48-49, 56
Delivered 1903
First run 1903 [1][2]
Withdrawn c. 1932
Preserved None
Disposition All scrapped

The CGR 3rd Class 4-4-0 of 1903 is a South African steam locomotive from the pre-Union era in the Cape Colony.

In 1903 the Cape Government Railways placed the last eight 3rd Class Wynberg Tender locomotives with a 4-4-0 American type wheel arrangement in suburban service in Cape Town. While they appeared to be virtually identical to the locomotives of 1901 at first glance, they were heavier and more powerful.[1][2]

Manufacturer

The last eight 3rd Class Wynberg Tender passenger locomotives for suburban service in Cape Town were introduced on the Cape Government Railways (CGR) in 1903. They were also built by Sharp, Stewart and Company, but it appears that their numbering was used as an opportunity to perform some gap-filling on the numbering roster.[1][2]

These locomotives were very similar in design and appearance to the previous batch of six of 1901, but larger and more powerful. The main differences were:

Service

Cape Government Railways

These locomotives were also known as Wynberg Tenders. They were fast and reliable and performed well on the Simon's Town line. Some were later transferred to Port Elizabeth, where they were employed on the interurban passenger trains to Uitenhage.[1]

South African Railways

The Union of South Africa was established on 31 May 1910, in terms of the South Africa Act. One of the clauses in the Act required that the three Colonial Government railways, the CGR, the Natal Government Railways and the Central South African Railways, also be united under one single administration to control and administer the railways, ports and harbours of the Union. While the South African Railways (SAR) 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.[3][4]

In 1912 these locomotives were also considered obsolete by the SAR, designated Class 03 and renumbered by having the numeral 0 prefixed to their existing numbers. In SAR service they continued to work suburban trains and some were later transferred to Germiston, where they were adapted to work the push-pull railmotor trains between Germiston and Wattles until that line was electrified.[1]

Despite being considered obsolete, all eight survived until c. 1918. Two were withdrawn from service between 1918 and 1931 while the rest survived in service until after 1931.[2][4]

Works numbers

The works numbers, original numbers and renumbering of the Cape 3rd Class of 1903 are shown in the table.[1][4]

Service illustrated

See also

References

 
 

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  1. 1.0 1.1 1.2 1.3 1.4 1.5 1.6 Holland, D.F. (1971). Steam Locomotives of the South African Railways, Volume 1: 1859-1910 (1st ed.). Newton Abbott, Devon: David & Charles. pp. 59–61. ISBN 978-0-7153-5382-0.
  2. 2.0 2.1 2.2 2.3 Paxton, Leith; Bourne, David (1985). Locomotives of the South African Railways (1st ed.). Cape Town: Struik. p. 18. ISBN 0869772112.
  3. The South African Railways - Historical Survey. Editor George Hart, Publisher Bill Hart, Sponsored by Dorbyl Ltd., Published c. 1978, p. 25.
  4. 4.0 4.1 4.2 Classification of S.A.R. Engines with Renumbering Lists, issued by the Chief Mechanical Engineer’s Office, Pretoria, January 1912, p. 26. (Reprinted in April 1987 by SATS Museum, R.3125-6/9/11-1000)