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 1⁄2 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 1⁄2 in (6.109 m) engine 10 ft (3.048 m) tender 41 ft 5 3⁄4 in (12.643 m) total |
Length | 50 ft 2 1⁄2 in (15.304 m) over couplers |
Height | 12 ft 10 in (3.912 m) |
Axle load | 14 15⁄20 long tons (15.0 t) 2nd driver |
Weight on drivers | 29 3⁄20 long tons (29.6 t) |
Locomotive weight | 41 12⁄20 long tons (42.3 t) w/o |
Tender weight | 31 7⁄20 long tons (31.9 t) w/o |
Locomotive and tender combined weight | 72 19⁄20 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 3⁄8 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 1⁄2 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Withdrawn | c. 1932 |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:
- The wheelbase of the coupled wheels, the engine itself and the engine-and-tender were longer.
- As a result, the overall length was longer.
- The locomotive was heavier, with a heavier axle load, engine and tender weight.
- The tender had a larger water capacity.
- The boiler pitch was raised.
- The maximum boiler pressure was raised from 165 to 180 pounds per square inch (1,140 to 1,240 kilopascals).
- The grate area and the tube- and firebox heating areas were larger.
- The cylinder bore was increased.
- As a result, the tractive effort was raised from 14,310 to 16,540 pounds-force (63.7 to 73.6 kilonewtons) at 75% boiler pressure.[1]
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]
Works no. |
Orig. no. |
SAR no. |
---|---|---|
4969 | 1 | 01 |
4970 | 21 | 021 |
4971 | 29 | 029 |
4972 | 30 | 030 |
4973 | 45 | 045 |
4974 | 48 | 048 |
4975 | 49 | 049 |
4976 | 56 | 056 |
Service illustrated
-
Class 03 Wynberg Tender leaving Cape Town Station, c. 1907
-
No. 49 on a motor train between Germiston and Wattles, c. 1930
See also
- 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
- List of South African locomotive classes
- South African locomotive history
- The 4-4-0 "American"
References
|
- ↑ 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.
- ↑ 2.0 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.
- ↑ The South African Railways - Historical Survey. Editor George Hart, Publisher Bill Hart, Sponsored by Dorbyl Ltd., Published c. 1978, p. 25.
- ↑ 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)