CGR 1st Class 4-4-0TT

This article is about one of several different Cape Government Railways locomotive types to be designated "1st Class". For the others, see Cape Government Railways 1st Class locomotives.

CGR 1st Class 4-4-0TT
OVGS 1st Class 4-4-0TT
South African Class 01 4-4-0TT
Works picture of CGR 1st Class 4-4-0TT, c. 1881
Type and origin
Power typeSteam
DesignerRobert Stephenson and Company
BuilderNeilson and Company
Serial number2680-2685
Build date1881
Total produced6
Specifications
Configuration:
​
 • Whyte4-4-0TT (American)
 • UIC2'Bn2t
Driver1st coupled axle
Gauge3 ft 6 in (1,067 mm) Cape gauge
Leading dia.27 in (686 mm)
Coupled dia.48 in (1,219 mm)
Tender wheels36 in (914 mm)
Wheelbase33 ft 2+3⁄4 in (10,128 mm) ​
 • Engine17 ft 4 in (5,283 mm)
 • Leading4 ft 8 in (1,422 mm)
 • Coupled6 ft 6 in (1,981 mm)
 • Tender8 ft (2,438 mm)
Length:
​
 • Over couplers40 ft 8+7⁄8 in (12,417 mm)
Width6 ft 10 in (2,083 mm)
Height12 ft (3,658 mm)
Frame typePlate
Axle load8 LT 1 cwt (8,179 kg) ​
 • Leading7 LT 3 cwt (7,265 kg)
 • 1st coupled7 LT 19 cwt 1 qtr (8,090 kg)
 • 2nd coupled8 LT 1 cwt (8,179 kg)
 • Tender axle5 LT 16 cwt (5,893 kg)
Adhesive weight16 LT (16,260 kg)
Loco weight23 LT 3 cwt (23,520 kg)
Tender weight17 LT 8 cwt (17,680 kg)
Total weight40 LT 11 cwt (41,200 kg)
Tender type3-axle
Fuel typeCoal
Fuel capacity2 LT 10 cwt (2.5 t)
Water cap.450 imp gal (2,050 L) engine
Tender cap.1,700 imp gal (7,730 L)
Firebox:​
 • TypeRound-top
 • Grate area10.5 sq ft (0.98 m2)
Boiler:
​
 • Pitch5 ft 10 in (1,778 mm)
 • Tube plates9 ft (2,743 mm)
Boiler pressure130 psi (896 kPa)
Safety valveSalter
Heating surface:​
 • Firebox55 sq ft (5.1 m2)
 • Tubes494.7 sq ft (45.96 m2)
 • Total surface549.7 sq ft (51.07 m2)
CylindersTwo
Cylinder size14 in (356 mm) bore
18 in (457 mm) stroke
Valve gearStephenson
CouplersJohnston link-and-pin
Performance figures
Tractive effort7,167 lbf (31.88 kN) @ 75%
Career
OperatorsCape Government Railways
OVGS
South African Railways
ClassCGR 1st Class, SAR Class 01
Number in class6
NumbersM44-M49
Delivered1881
First run1881

The Cape Government Railways 1st Class 4-4-0TT of 1881 was a South African steam locomotive from the pre-Union era in the Cape of Good Hope.

In 1881, the Cape Government Railways placed six more 1st Class tank-and-tender locomotives with a 4-4-0 American type wheel arrangement in service on the Midland System. These engines were built as tender locomotives, without on-board coal bunkers and with permanently attached coal and water tenders.[1]

Manufacturer

Six 4-4-0 side-tank-and-tender passenger locomotives were built for the Cape Government Railways (CGR) by Neilson and Company in 1881, numbered in the range from M44 to M49 in the Midland System's number range. They were built to the same specifications as the eleven 1st Class 4-4-0T locomotives of 1875, but without the onboard coal bunker and with the plate frame shortened accordingly. Instead, they were equipped with permanently attached six-wheeled tenders with an estimated capacity of 1,700 imperial gallons (7,730 litres) water and 2 long tons 10 hundredweight (2.5 tonnes) coal.[1][2]

They were also designated 1st Class when a locomotive classification system was introduced by the CGR.[1]

Service

Cape Government Railways

At the time these locomotives entered service, the two Midland lines from Port Elizabeth were open as far as Graaff Reinet and Cradock respectively.[3]

One of these locomotives, no. M48, later became known as the Colesberg Buster during the years it worked on the line between Colesberg Junction and Colesberg town. In this role, it was equipped with one of the older small four-wheeled tenders.[1]

According to some sources, one of these locomotives, no. 445, was sold to the Nyasaland Railways at some stage.[1][4] This has since been proven untrue, since no evidence of such a sale have come to light and the particular locomotive is referred to in the South African Railways (SAR) renumbering and classification lists of 1912 as being at Uitenhage and recommended for scrapping.[5][6]

Oranje-Vrijstaat Gouwerment-Spoorwegen

The Oranje-Vrijstaat Gouwerment-Spoorwegen (OVGS) acquired its first locomotives second-hand from the CGR towards the end of 1896. The OVGS 1st Class was, according to the original engine power chart of that railway, a 4-4-0 tank-and-tender locomotive with a three-axle tender. One source proposed that these engines were from the CGR 1st Class 4-4-0T of 1875, which had their optional two-axle tenders replaced with three-axle tenders and their cylinder bore increased from 13 inches (330 millimetres) to 14 inches (356 millimetres), amongst other modifications.[7]

More likely candidates which better fit the description on the OVGS engine power chart in respect of cylinder bore, tender and lack of onboard coal bunker, may be one or more of these 1st Class 4-4-0TT engines of 1881, numbers 444, 446 and 447, which were last reflected on the CGR roster in 1896.[7]

South African Railways

When the Union of South Africa was established on 31 May 1910, the three Colonial government railways (CGR, Natal Government Railways and Central 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 was only implemented with effect from 1 January 1912.[3][6]

By 1912, only three of these locomotives survived. One was locomotive no. 445, which had allegedly earlier been sold to Nyasaland and which, at the time, was found to be rostered at Uitenhage on the Midland system. It was considered obsolete by the SAR and was excluded from the classification and renumbering schedules. The other two, numbers 448 and 449, were also considered obsolete and were therefore designated Class 01 and renumbered to 0448 and 0449 respectively. They were all withdrawn from service in 1913.[5][6][8]

Renumbering

All these locomotives were renumbered at least three times during the CGR era, whenever a new numbering system was adopted. By 1886, the system prefixes had been done away with, the "M" having been replaced by the numeral "1". Further renumbering was applied by 1890 and again by 1896, when first the leading numeral "1" was replaced by the numeral "2" by 1890, and the leading numeral "2" was, in turn, replaced by the numeral "4" by 1896.[1][5]

The works numbers, original numbers and renumbering of the Cape 1st Class 4-4-0TT are listed in the table.[1][5][6]

References

Wikimedia Commons has media related to CGR 1st Class 4-4-0TT.
  1. ^ a b c d e f g Holland, D.F. (1971). Steam Locomotives of the South African Railways. Vol. 1: 1859–1910 (1st ed.). Newton Abbott, England: David & Charles. p. 25. ISBN 978-0-7153-5382-0.
  2. ^ Espitalier, T.J.; Day, W.A.J. (1943). The Locomotive in South Africa - A Brief History of Railway Development. Chapter II - The Cape Government Railways (Continued). South African Railways and Harbours Magazine, September 1943. p. 658 (drawing).
  3. ^ a b The South African Railways - Historical Survey. Editor George Hart, Publisher Bill Hart, Sponsored by Dorbyl Ltd., Published c. 1978, pp. 12, 25.
  4. ^ Dulez, Jean A. (2012). Railways of Southern Africa 150 Years (Commemorating One Hundred and Fifty Years of Railways on the Sub-Continent – Complete Motive Power Classifications and Famous Trains – 1860–2011) (1st ed.). Garden View, Johannesburg, South Africa: Vidrail Productions. p. 36. ISBN 9 780620 512282.
  5. ^ a b c d C.G.R. Numbering Revised, Article by Dave Littley, SA Rail May–June 1993, pp. 94-95.
  6. ^ a b c d Classification of S.A.R. Engines with Renumbering Lists, issued by the Chief Mechanical Engineer's Office, Pretoria, January 1912, p. 2. (Reprinted in April 1987 by SATS Museum, R.3125-6/9/11-1000)
  7. ^ a b Espitalier, T.J.; Day, W.A.J. (1944). The Locomotive in South Africa - A Brief History of Railway Development. Chapter V - Other Transvaal and O.F.S. Railways. South African Railways and Harbours Magazine, December 1944. pp. 925, 927.
  8. ^ Paxton, Leith; Bourne, David (1985). Locomotives of the South African Railways (1st ed.). Cape Town: Struik. p. 15. ISBN 0869772112.