NGR Class N 4-6-2T 1906
South African NG 4-6-2T 1906 |
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NGR Class N 4-6-2T no. 2 |
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| Specifications |
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Configuration:
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| • Whyte | 4-6-2T (Pacific) |
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| • UIC | 2'C1'n2t |
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| Driver | 2nd coupled axle |
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| Gauge | 2 ft (610 mm) narrow |
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| Leading dia. | 18 in (457 mm) |
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| Coupled dia. | 30 in (762 mm) |
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| Trailing dia. | 20 in (508 mm) |
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| Wheelbase | 17 ft (5,182 mm) |
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| • Leading | 3 ft 6 in (1,067 mm) |
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| • Coupled | 5 ft 9 in (1,753 mm) |
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Length:
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| • Over couplers | 24 ft 1⁄2 in (7,328 mm) |
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| Height | 9 ft 4+1⁄2 in (2,858 mm) |
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| Frame type | Plate |
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| Axle load | 5 LT 9 cwt 1 qtr (5,550 kg) |
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| Loco weight | 23 LT 19 cwt (24,330 kg) |
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| Fuel type | Coal |
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| Fuel capacity | 22 long hundredweight 2 qtr (1.1 t) |
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| Water cap. | 750 imp gal (3,410 L) |
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| Firebox: | |
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| • Type | Round-top |
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| • Grate area | 11 sq ft (1.0 m2) |
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Boiler:
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| • Pitch | 4 ft 6 in (1,372 mm) |
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| • Diameter | 3 ft 4+1⁄2 in (1,029 mm) outside |
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| • Tube plates | 10 ft 2 in (3,099 mm) |
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| • Small tubes | 124: 1+3⁄4 in (44 mm) |
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| Boiler pressure | 165 psi (1,138 kPa) |
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| Safety valve | Ramsbottom |
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| Heating surface | 132 sq ft (12.3 m2) |
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| Cylinders | Two |
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| Cylinder size | 11+1⁄2 in (292 mm) bore
15 in (381 mm) stroke |
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| Valve gear | Walschaerts |
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| Valve type | Murdoch's D slide |
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| Couplers | Johnston link-and-pin |
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The Natal Government Railways Class N 4-6-2T of 1906 was a South African steam locomotive from the pre-Union era in the Natal Colony.
In April 1906, the Natal Government Railways placed its first two 4-6-2T narrow-gauge tank steam locomotives in service. In 1912, when these locomotives were assimilated into the South African Railways, they retained their engine numbers, but with an "NG" prefix added. They were sold to the Moçâmedes Railway in Portuguese West Africa in 1915.
