| South African type XD tender | |
| Locomotive: | CGR 6th Class of 1901 (Neilson's) CGR 6th Class of 1902 CGR 8th Class of 1902 (1st) |
| Designer: | Cape Government Railways (H.M. Beatty) |
| Builder: | Neilson, Reid and Company |
| Date: | 1901-1902 |
| Rebuilder: | South African Railways |
| Rebuilddate: | c. 1925 |
| Rebuiltto: | Type XF |
| Wheelarr: | 2-axle bogies |
| Length: | 22feet |
| Wheeldiameter: | NaN0NaN0 as built 340NaN0 retyred |
| Wheelbase: | 14feet |
| Bogie: | 4feet |
| Axleload: | 8lt |
| Bogie 1: | 16lt |
| Bogie 2: | 17lt |
| Tenderempty: | 36876lb |
| Tenderworking: | 34lt |
| Fueltype: | Coal |
| Fuelcap: | 5lt |
| Watercap: | 2730sigfig=3NaNsigfig=3 |
| Stoking: | Manual |
| Coupling: | Drawbar & Johnston link-and-pin Drawbar & AAR knuckle (1930s) |
| Operator: | Cape Government Railways South African Railways |
| Fleetnumbers: | SAR 614-648, 1069-1071 |
See main article: South African steam locomotive tenders.
The South African type XD tender was a steam locomotive tender from the pre-Union era in the Cape of Good Hope.
The Type XD tender first entered service in 1901, as tenders to the British-built of the three versions of Tenwheeler type steam locomotive which were acquired by the Cape Government Railways in that year. These locomotives were designated Class 6H on the South African Railways in 1912.[1] [2]
Type XD tenders were built in 1901 and 1902 by Neilson, Reid and Company.[1] [2]
The original 6th Class locomotive and tender was designed in 1892 by H.M. Beatty, the Locomotive Superintendent of the Cape Government Railways (CGR) Western System at the time, at its Salt River works in Cape Town. The Type XD tender first entered service in 1901, as tenders to 21 new locomotives which were built for the CGR by Neilson, Reid.[1] [2]
As built, the tender had a maximum axle load of 8lt, a coal capacity of 5lt and a water capacity of 2730impgal.[1] [2]
In the South African Railways (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 and locomotive class, 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.
Three locomotive classes were delivered new with Type XD tenders, built by the same manufacturer. Bearing in mind that tenders could and did migrate between engines, these tenders should have been numbered in the SAR number ranges as shown.[1] [2]
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 locomotive classes as shown.[2] [3]
The second letter indicates the tender's water capacity. The "_D" tenders had a capacity of between 2730and.[2]
The original slatted upper sides of the Type XD tender's coal bunker were soon replaced by sheet-metal sides to increase the coal capacity.
From c. 1925, some Type XD tenders from Classes 6H, 6J and 8 were completely rebuilt by the SAR, by mounting a new upper structure on the existing underframe. Since their new tanks increased their water capacity to 3000sigfig=3NaNsigfig=3, these tenders were reclassified to Type XF. They had a coal capacity of 101NaN1 and a maximum axle load of 11lt. These rebuilt tenders had a more modern appearance, with flush sides all the way to the top of the coal bunker.[1] [2] [4]
The program to rebuild several older tender types with new upper structures was begun by Col F.R. Collins DSO, who approved several of the detailed drawings for the work during his term in office as Chief Mechanical Engineer of the SAR from 1922 to 1929. It was continued by his successor, A.G. Watson.[5]