This article is about one of two different Natal Government Railways locomotive types to be designated "Class H". For the other, see
South African Class C1 4-6-2T.
NGR Class H 4-6-4T
South African Class C2 4-6-4T |
|---|
NGR Class H 4-6-4T no. 39 arriving at Port Shepstone with the afternoon train from Durban, c. 1905 |
|
| Specifications |
|---|
Configuration:
| |
|---|
| • Whyte | 4-6-4T (Baltic) |
|---|
| • UIC | 2'C2'n2t |
|---|
| Driver | 2nd coupled axle |
|---|
| Gauge | 3 ft 6 in (1,067 mm) Cape gauge |
|---|
| Leading dia. | 25+3⁄4 in (654 mm) |
|---|
| Coupled dia. | 39 in (991 mm) |
|---|
| Trailing dia. | 25+3⁄4 in (654 mm) |
|---|
| Wheelbase | 25 ft 7+1⁄4 in (7,804 mm) |
|---|
• Axle spacing
(Asymmetrical) | 1-2: 3 ft 7+1⁄2 in (1,105 mm)
2-3: 4 ft 1+1⁄2 in (1,257 mm) |
|---|
| • Leading | 5 ft (1,524 mm) |
|---|
| • Coupled | 7 ft 9 in (2,362 mm) |
|---|
| • Trailing | 5 ft (1,524 mm) |
|---|
Length:
| |
|---|
| • Over couplers | 31 ft 5+1⁄4 in (9,582 mm) |
|---|
| Height | 11 ft 7+1⁄2 in (3,543 mm) |
|---|
| Frame type | Plate |
|---|
| Axle load | 7 LT 18 cwt (8,027 kg) |
|---|
| • Leading | 5 LT 10 cwt (5,588 kg) |
|---|
| • 1st coupled | 7 LT (7,112 kg) |
|---|
| • 2nd coupled | 7 LT 18 cwt (8,027 kg) |
|---|
| • 3rd coupled | 7 LT 4 cwt (7,316 kg) |
|---|
| • Trailing | 5 LT 10 cwt (5,588 kg) |
|---|
| Adhesive weight | 22 LT 2 cwt (22,450 kg) |
|---|
| Loco weight | 33 LT 2 cwt (33,630 kg) |
|---|
| Fuel type | Coal |
|---|
| Fuel capacity | 2 LT (2.0 t) |
|---|
| Water cap. | 1,130 imp gal (5,140 L) |
|---|
| Firebox: | |
|---|
| • Type | Round-top |
|---|
| • Grate area | 11 sq ft (1.0 m2) |
|---|
Boiler:
| |
|---|
| • Pitch | 5 ft 7 in (1,702 mm) |
|---|
| • Diameter | 3 ft 2+7⁄8 in (987 mm) |
|---|
| • Tube plates | 10 ft 3+1⁄2 in (3,137 mm) |
|---|
| • Small tubes | 130: 1+3⁄4 in (44 mm) |
|---|
| Boiler pressure | 145 psi (1,000 kPa) |
|---|
| Safety valve | Ramsbottom |
|---|
| Heating surface: | |
|---|
| • Firebox | 58 sq ft (5.4 m2) |
|---|
| • Tubes | 611 sq ft (56.8 m2) |
|---|
| • Total surface | 669 sq ft (62.2 m2) |
|---|
| Cylinders | Two |
|---|
| Cylinder size | 14 in (356 mm) bore
21 in (533 mm) stroke |
|---|
| Valve gear | Stephenson |
|---|
| Couplers | Johnston link-and-pin |
|---|
|
|
| Career |
|---|
| Operators | Natal Government Railways
South African Railways |
|---|
| Class | NGR Class H, SAR Class C2 |
|---|
| Number in class | 1 |
|---|
| Numbers | NGR 21, renumbered 39
SAR 86 |
|---|
| Delivered | 1896 |
|---|
| First run | 1896 |
|---|
| Withdrawn | 1931 |
|---|
|
The South African Railways Class C2 4-6-4T of 1896 was a steam locomotive from the pre-Union era in the Colony of Natal.
Between 1879 and 1885, the Natal Government Railways placed 37 4-6-0 tank steam locomotives in service, which were later designated Class G. In 1896, one of them was rebuilt to the first known 4-6-4T Baltic type locomotive, later designated Class H. In 1912, when this rebuilt engine was assimilated into the South African Railways, it was renumbered and became its only Class C2 locomotive.
.jpg){kind=link}