South African Class C1 4-6-2T

Specifications
Specifications
Configuration:;
• Whyte	4-6-2T (Pacific)
• UIC	2'C1'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	21 ft 8+1⁄4 in (6,610 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)
Length:;
• Over couplers	28 ft 9+3⁄4 in (8,782 mm)
Height	11 ft 7+1⁄2 in (3,543 mm)
Frame type	Plate
Axle load	9 LT 4 cwt (9,348 kg)
• Leading	5 LT 16 cwt (5,893 kg)
• 1st coupled	8 LT 16 cwt (8,941 kg)
• 2nd coupled	9 LT 4 cwt (9,348 kg)
• 3rd coupled	8 LT 9 cwt (8,586 kg)
• Trailing	6 LT 7 cwt (6,452 kg)
Adhesive weight	26 LT 9 cwt (26,870 kg)
Loco weight	38 LT 12 cwt (39,220 kg)
Fuel type	Coal
Fuel capacity	2 LT 5 cwt (2.3 t)
Water cap.	1,070 imp gal (4,860 L)
Firebox:
• Type	Round-top
• Grate area	13.8 sq ft (1.28 m2)
Boiler:;
• Pitch	5 ft 10+1⁄2 in (1,791 mm)
• Diameter	3 ft 8+1⁄8 in (1,121 mm)
• Tube plates	10 ft 3 in (3,124 mm)
• Small tubes	173: 1+3⁄4 in (44 mm)
Boiler pressure	160 psi (1,103 kPa)
Heating surface:
• Firebox	68.26 sq ft (6.342 m2)
• Tubes	818.32 sq ft (76.024 m2)
• Total surface	886.58 sq ft (82.366 m2)
Cylinders	Two
Cylinder size	14 in (356 mm) bore; 21 in (533 mm) stroke
Valve gear	Stephenson
Couplers	Johnston link-and-pin

Type and origin
Type and origin
Power type	Steam
Designer	Kitson and Company; Natal Government Railways
Builder	Kitson and Company; Natal Government Railways; South African Railways
Serial number	Kitson 2507, SAR none
Model	NGR Class H
Build date	1901, 1912
Total produced	5

NGR Class H 4-6-2T
South African Class C1 4-6-2T
NGR Class H 4-6-2T; South African Class C1 4-6-2T
	NGR Class H no. 25, renumbered 38; SAR Class C1 no. 77
Power type
Type and origin
Power type	Steam
Designer	Kitson and Company; Natal Government Railways
Builder	Kitson and Company; Natal Government Railways; South African Railways
Serial number	Kitson 2507, SAR none
Model	NGR Class H
Build date	1901, 1912
Total produced	5
Configuration:;
Specifications
Configuration:;
• Whyte	4-6-2T (Pacific)
• UIC	2'C1'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	21 ft 8+1⁄4 in (6,610 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)
Length:;
• Over couplers	28 ft 9+3⁄4 in (8,782 mm)
Height	11 ft 7+1⁄2 in (3,543 mm)
Frame type	Plate
Axle load	9 LT 4 cwt (9,348 kg)
• Leading	5 LT 16 cwt (5,893 kg)
• 1st coupled	8 LT 16 cwt (8,941 kg)
• 2nd coupled	9 LT 4 cwt (9,348 kg)
• 3rd coupled	8 LT 9 cwt (8,586 kg)
• Trailing	6 LT 7 cwt (6,452 kg)
Adhesive weight	26 LT 9 cwt (26,870 kg)
Loco weight	38 LT 12 cwt (39,220 kg)
Fuel type	Coal
Fuel capacity	2 LT 5 cwt (2.3 t)
Water cap.	1,070 imp gal (4,860 L)
Firebox:
• Type	Round-top
• Grate area	13.8 sq ft (1.28 m2)
Boiler:;
• Pitch	5 ft 10+1⁄2 in (1,791 mm)
• Diameter	3 ft 8+1⁄8 in (1,121 mm)
• Tube plates	10 ft 3 in (3,124 mm)
• Small tubes	173: 1+3⁄4 in (44 mm)
Boiler pressure	160 psi (1,103 kPa)
Heating surface:
• Firebox	68.26 sq ft (6.342 m2)
• Tubes	818.32 sq ft (76.024 m2)
• Total surface	886.58 sq ft (82.366 m2)
Cylinders	Two
Cylinder size	14 in (356 mm) bore; 21 in (533 mm) stroke
Valve gear	Stephenson
Couplers	Johnston link-and-pin
Tractive effort
Performance figures
Tractive effort	12,660 lbf (56.3 kN) @ 75%
Operators
Career
Operators	Natal Government Railways; South African Railways
Class	NGR Class H, SAR Class C1
Number in class	NGR 1, SAR 5
Numbers	NGR 25, renumbered 38; SAR 77, 325-328
Delivered	1882
First run	1901
Withdrawn	1931

The South African Railways Class C1 4-6-2T of 1901 was a steam locomotive from the pre-Union era in the Natal Colony.

Between 1879 and 1885, the Natal Government Railways placed 37 4-6-0 Tenwheeler type tank steam locomotives in service. In 1901, one of them was rebuilt to a 4-6-2T Pacific type locomotive and in 1912, when it was assimilated into the South African Railways, it was renumbered and designated Class C1. During 1912, four more of these 4-6-2T locomotives were built by the South African Railways in the Durban workshops, using mostly surplus material.