This article is about one of two different Cape Government Railways locomotive types to be designated "2nd Class". For the other, see
CGR 2nd Class 4-4-0T.
The Cape Government Railways 2nd Class 2-6-2TT of 1875 was a South African steam locomotive from the pre-Union era in the Cape of Good Hope.
Quick Facts Type and origin, Power type ...
CGR 2nd Class 2-6-2TT |
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CGR 2nd Class 2-6-2TT no. M26, with tender and "front porch railings", Fish River Bridge, c. 1881 |
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Specifications |
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Configuration:
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• Whyte | 2-6-2TT (Prairie) |
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• UIC | 1’C1’n2t |
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Driver | 2nd coupled axle |
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Gauge | 3 ft 6 in (1,067 mm) Cape gauge |
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Leading dia. | 24 in (610 mm) |
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Coupled dia. | 38 in (965 mm) |
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Trailing dia. | 24 in (610 mm) |
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Wheelbase: | |
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• Axle spacing (Asymmetrical) | 1–2: 4 ft 8 in (1,422 mm) 2–3: 3 ft 4 in (1,016 mm) |
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• Engine | 20 ft 3 in (6,172 mm) |
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• Coupled | 8 ft (2,438 mm) |
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Length:
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• Over couplers | 27 ft (8,230 mm) |
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Height | 12 ft (3,658 mm) |
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Frame type | Plate |
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Axle load | 9 LT 6 cwt 3 qtr (9,487 kg) |
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• Leading | 2 LT 9 cwt (2,489 kg) |
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• 1st coupled | 7 LT 13 cwt (7,773 kg) |
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• 2nd coupled | 9 LT 6 cwt 3 qtr (9,487 kg) |
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• 3rd coupled | 6 LT 17 cwt 1 qtr (6,973 kg) |
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• Trailing | 2 LT 9 cwt (2,489 kg) |
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Adhesive weight | 23 LT 17 cwt (24,230 kg) |
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Loco weight | 28 LT 14 cwt 4 qtr (29,210 kg) |
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Tender type | 2-axle |
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Fuel type | Coal |
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Fuel capacity | Engine: 0 LT 15 cwt (0.8 t) Tender: 2 LT (2.0 t) |
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Water cap. | Engine: 650 imp gal (2,950 L) Tender: 900 imp gal (4,090 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 | 5 ft 10+1⁄2 in (1,791 mm) |
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• Tube plates | 10 ft (3,048 mm) |
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Boiler pressure | 130 psi (896 kPa) |
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Safety valve | Salter |
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Heating surface: | |
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• Firebox | 58 sq ft (5.4 m2) |
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• Tubes | 692 sq ft (64.3 m2) |
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• Total surface | 750 sq ft (70 m2) |
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Cylinders | Two |
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Cylinder size | 15 in (381 mm) bore 20 in (508 mm) stroke |
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Valve gear | Stephenson |
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Train brakes | Clarke's chain brakes |
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Couplers | Johnston link-and-pin |
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Close
The first mixed traffic locomotives to enter service on the new 3 feet 6 inches Cape gauge mainlines of the Cape Government Railways were 2-6-2 Prairie type side-tank engines which were delivered between 1875 and 1879. Four-wheeled tenders were also acquired and the locomotives could be operated in either a tank or tank-and-tender engine configuration, as circumstances demanded. These locomotives were later designated the Cape 2nd Class.[1][2]