The South African Railways Class D 2-6-4T of 1898 was a steam locomotive from the pre-Union era in Transvaal.
Quick Facts PPR 55 Tonner 2-6-4TNZASM 55 Tonner 2-6-4TIMR 55 Tonner 2-6-4TCSAR Class D 2-6-4T, Type and origin ...
PPR 55 Tonner 2-6-4T NZASM 55 Tonner 2-6-4T IMR 55 Tonner 2-6-4T CSAR Class D 2-6-4T South African Class D 2-6-4T |
---|
Pretoria-Pietersburg Railway no. 1 President Kruger, CSAR Class D no. 209, SAR Class D no. 56 |
Type and origin |
---|
Power type | Steam |
---|
Designer | Beyer, Peacock & Company |
---|
Builder | Beyer, Peacock & Company |
---|
Order number | 8210, 8491 |
---|
Serial number | 3943-3946, 3948, 4127 |
---|
Model | PPR 55 Tonner |
---|
Build date | 1897, 1900 |
---|
Total produced | 7 |
---|
|
Specifications |
---|
Configuration:
| |
---|
• Whyte | 2-6-4T |
---|
Driver | 2nd coupled axle |
---|
Gauge | 3 ft 6 in (1,067 mm) Cape gauge |
---|
Leading dia. | 30 in (762 mm) |
---|
Coupled dia. | 46 in (1,168 mm) |
---|
Trailing dia. | 30 in (762 mm) |
---|
Wheelbase | 28 ft 3+1⁄2 in (8,623 mm) |
---|
• Coupled | 10 ft 2 in (3,099 mm) |
---|
• Trailing | 5 ft 3 in (1,600 mm) |
---|
Length:
| |
---|
• Over couplers | 35 ft 6+3⁄4 in (10,839 mm) |
---|
Height | 12 ft 3 in (3,734 mm) |
---|
Frame type | Plate |
---|
Axle load | 11 LT 10 cwt (11,680 kg) |
---|
• Leading | 7 LT 15 cwt (7,874 kg) |
---|
• Coupled | 11 LT 10 cwt (11,680 kg) |
---|
• Trailing | 13 LT 5 cwt (13,460 kg) |
---|
Adhesive weight | 34 LT 10 cwt (35,050 kg) |
---|
Loco weight | 55 LT 10 cwt (56,390 kg) |
---|
Fuel type | Coal |
---|
Fuel capacity | 3 LT (3.0 t) |
---|
Water cap. | 1,540 imp gal (7,000 L) |
---|
Firebox: | |
---|
• Type | Belpaire |
---|
• Grate area | 16.8 sq ft (1.56 m2) |
---|
Boiler:
| |
---|
• Pitch | 6 ft 6 in (1,981 mm) |
---|
• Diameter | 4 ft 3⁄4 in (1,238 mm) |
---|
• Tube plates | 10 ft 3+11⁄16 in (3,142 mm) |
---|
• Small tubes | 185: 1+3⁄4 in (44 mm) |
---|
Boiler pressure | 170 psi (1,172 kPa) |
---|
Safety valve | Ramsbottom |
---|
Heating surface: | |
---|
• Firebox | 94.7 sq ft (8.80 m2) |
---|
• Tubes | 871.9 sq ft (81.00 m2) |
---|
• Total surface | 966.6 sq ft (89.80 m2) |
---|
Cylinders | Two |
---|
Cylinder size | 16 in (406 mm) bore 22 in (559 mm) stroke |
---|
Valve gear | Walschaerts |
---|
Valve type | Slide |
---|
Couplers | Johnston link-and-pin |
---|
|
|
|
Close
Between 1898 and 1900, the Pretoria-Pietersburg Railway placed six 55 Tonner 2-6-4T "Adriatic" type tank steam locomotives in service. During the Second Boer War, the Transvaal government took possession of the railway and it was operated as part of the Netherlands-South African Railway Company, until the Imperial Military Railways took over all railway operations in the Zuid-Afrikaansche Republiek.[1][2]
At the end of the war, these locomotives were taken onto the roster of the Central South African Railways, renumbered and designated Class D. In 1912, when these engines were assimilated into the South African Railways, they were renumbered once again, but retained their Class D classification.[1][2][3]