South African type XF2 tender

The South African type XF2 tender was a steam locomotive tender from the pre-Union era in the Cape of Good Hope.

South African type XF2 tender
Type XF2 (7½ LT) on CGR 9th Class, c. 1906
Type and origin
♠ 7½ long tons coal capacity
10 long tons coal capacity
LocomotiveCGR 9th Class of 1906
CGR 10th Class
DesignerCape Government Railways
(H.M. Beatty)
BuilderKitson and Company
In service1906
Specifications
Configuration2-axle bogies
Gauge3 ft 6 in (1,067 mm) Cape gauge
Length23 ft 7 78 in (7,210 mm)
Wheel dia.33 12 in (851 mm) as built
34 in (864 mm) retyred
Wheelbase16 ft 1 in (4,902 mm)
  Bogie4 ft 7 in (1,397 mm)
Axle load♠ 9 LT 11 cwt (9,703 kg)
10 LT 18 cwt (11,070 kg)
  Front bogie♠ 19 LT 2 cwt (19,410 kg)
20 LT 8 cwt (20,730 kg)
  Rear bogie♠ 20 LT 12 cwt (20,930 kg)
21 LT 16 cwt (22,150 kg)
Weight empty42,128 lb (19,109 kg)
Weight w/o♠ 39 LT 14 cwt (40,340 kg)
42 LT 4 cwt (42,880 kg)
Fuel typeCoal
Fuel cap.♠ 7 LT 10 cwt (7.6 t)
10 LT (10.2 t)
Water cap. 3,000 imp gal (13,600 l)
StokingManual
CouplersDrawbar & Johnston link-and-pin
Career
OperatorsCape Government Railways
South African Railways
Numbers♠ SAR 948 - SAR 1244

Two Type XF2 tenders entered service in 1906, as tenders to the 9th Class 2-8-2 Mikado type and 10th Class 4-8-0 Mastodon type experimental steam locomotives, of which one each were acquired by the Cape Government Railways in that year. The two tenders were not identical.[1][2][3]

Manufacturer

Both Type XF2 tenders were built in 1906 by Kitson and Company.[1][2][3]

The tenders entered service as tenders to the CGR 9th Class and CGR 10th Class of 1906, both experimental locomotives. The locomotives and tenders were designed by H.M. Beatty, the Chief Locomotive Superintendent of the Cape Government Railways (CGR), at the Salt River works in Cape Town.[1][2][3]

Characteristics

The two tenders were not identical. The tender of the 9th Class had a coal capacity of 7 long tons 10 hundredweight (7.6 tonnes) and a maximum axle load of 9 long tons 11 hundredweight (9,703 kilograms), while the tender of the 10th Class had a coal capacity of 10 long tons (10.2 tonnes) and a maximum axle load of 10 long tons 18 hundredweight (11,070 kilograms). Both had a water capacity of 3,000 imperial gallons (13,600 litres).[1][2][3]

Locomotives

On the South African Railways (SAR) roster, the two locomotives were designated Classes Experimental 5 and Experimental 6 respectively in 1912. In the SAR years, tenders were numbered for the engines they were delivered with. In most cases, an oval number plate, bearing the engine number and often also the tender type, would be attached to the rear end of the tender. During the classification and renumbering of locomotives onto the SAR roster in 1912, no separate classification and renumbering list was published for tenders, which should have been renumbered according to the locomotive renumbering list.[3][4]

Type XF2 (10 LT) on CGR 10th Class, c. 1906

Only these two experimental locomotives were delivered new with Type XF2 tenders and were renumbered to the SAR numbers as shown.[2][3][4]

Classification letters

Since many tender types are interchangeable between different locomotive classes and types, a tender classification system was adopted by the SAR. The first letter of the tender type indicates the classes of engines to which it can be coupled. The "X_" tenders could be used with the following locomotive classes:[3]

The second letter indicates the tender's water capacity. The "_F" tenders had a capacity of 3,000 imperial gallons (13,600 litres; 3,600 US gallons).[3]

A number, when added after the letter code, usually indicates differences between similar tender types, such as function, wheelbase or coal bunker capacity.[3]

References

  1. Holland, D.F. (1971). Steam Locomotives of the South African Railways. 1: 1859–1910 (1st ed.). Newton Abbott, Devon: David & Charles. pp. 72–74. ISBN 978-0-7153-5382-0.
  2. 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.
  3. 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, 43.
  4. Classification of S.A.R. Engines with Renumbering Lists, issued by the Chief Mechanical Engineer’s Office, Pretoria, January 1912 (Reprinted in April 1987 by SATS Museum, R.3125-6/9/11-1000)
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