CGR 2nd Class 2-6-2TT

Specifications
Specifications
Configuration:;
• Whyte	2-6-2TT (Prairie)
• UIC	1’C1’n2t
Driver	2nd coupled axle
Gauge	3 ft 6 in (1,067 mm) Cape gauge
Leading dia.	24 in (610 mm)
Coupled dia.	38 in (965 mm)
Trailing dia.	24 in (610 mm)
Wheelbase:
• Axle spacing; (Asymmetrical)	1–2: 4 ft 8 in (1,422 mm); 2–3: 3 ft 4 in (1,016 mm)
• Engine	20 ft 3 in (6,172 mm)
• Coupled	8 ft (2,438 mm)
Length:;
• Over couplers	27 ft (8,230 mm)
Height	12 ft (3,658 mm)
Frame type	Plate
Axle load	9 LT 6 cwt 3 qtr (9,487 kg)
• Leading	2 LT 9 cwt (2,489 kg)
• 1st coupled	7 LT 13 cwt (7,773 kg)
• 2nd coupled	9 LT 6 cwt 3 qtr (9,487 kg)
• 3rd coupled	6 LT 17 cwt 1 qtr (6,973 kg)
• Trailing	2 LT 9 cwt (2,489 kg)
Adhesive weight	23 LT 17 cwt (24,230 kg)
Loco weight	28 LT 14 cwt 4 qtr (29,210 kg)
Tender type	2-axle
Fuel type	Coal
Fuel capacity	Engine: 0 LT 15 cwt (0.8 t); Tender: 2 LT (2.0 t)
Water cap.	Engine: 650 imp gal (2,950 L); Tender: 900 imp gal (4,090 L)
Firebox:
• Type	Round-top
• Grate area	11 sq ft (1.0 m2)
Boiler:;
• Pitch	5 ft 10+1⁄2 in (1,791 mm)
• Tube plates	10 ft (3,048 mm)
Boiler pressure	130 psi (896 kPa)
Safety valve	Salter
Heating surface:
• Firebox	58 sq ft (5.4 m2)
• Tubes	692 sq ft (64.3 m2)
• Total surface	750 sq ft (70 m2)
Cylinders	Two
Cylinder size	15 in (381 mm) bore; 20 in (508 mm) stroke
Valve gear	Stephenson
Train brakes	Clarke's chain brakes
Couplers	Johnston link-and-pin

Type and origin
Type and origin
Power type	Steam
Designer	Robert Stephenson and Company
Builder	Robert Stephenson and Company; Avonside Engine Company; Kitson and Company
Serial number	RS 2205–2210, 2332–2339, 2353 (engines), RS 2215–2217, 2221–2223 (tenders); Avonside 1110–1113, 1157–1158, 1193–1194, 1209–1210; Kitson 2038–2041
Build date	1875–1879
Total produced	29 (2 lost at sea)

CGR 2nd Class 2-6-2TT
CGR 2nd Class 2-6-2TT
	CGR 2nd Class 2-6-2TT no. M26, with tender and "front porch railings", Fish River Bridge, c. 1881
Power type
Type and origin
Power type	Steam
Designer	Robert Stephenson and Company
Builder	Robert Stephenson and Company; Avonside Engine Company; Kitson and Company
Serial number	RS 2205–2210, 2332–2339, 2353 (engines), RS 2215–2217, 2221–2223 (tenders); Avonside 1110–1113, 1157–1158, 1193–1194, 1209–1210; Kitson 2038–2041
Build date	1875–1879
Total produced	29 (2 lost at sea)
Configuration:;
Specifications
Configuration:;
• Whyte	2-6-2TT (Prairie)
• UIC	1’C1’n2t
Driver	2nd coupled axle
Gauge	3 ft 6 in (1,067 mm) Cape gauge
Leading dia.	24 in (610 mm)
Coupled dia.	38 in (965 mm)
Trailing dia.	24 in (610 mm)
Wheelbase:
• Axle spacing; (Asymmetrical)	1–2: 4 ft 8 in (1,422 mm); 2–3: 3 ft 4 in (1,016 mm)
• Engine	20 ft 3 in (6,172 mm)
• Coupled	8 ft (2,438 mm)
Length:;
• Over couplers	27 ft (8,230 mm)
Height	12 ft (3,658 mm)
Frame type	Plate
Axle load	9 LT 6 cwt 3 qtr (9,487 kg)
• Leading	2 LT 9 cwt (2,489 kg)
• 1st coupled	7 LT 13 cwt (7,773 kg)
• 2nd coupled	9 LT 6 cwt 3 qtr (9,487 kg)
• 3rd coupled	6 LT 17 cwt 1 qtr (6,973 kg)
• Trailing	2 LT 9 cwt (2,489 kg)
Adhesive weight	23 LT 17 cwt (24,230 kg)
Loco weight	28 LT 14 cwt 4 qtr (29,210 kg)
Tender type	2-axle
Fuel type	Coal
Fuel capacity	Engine: 0 LT 15 cwt (0.8 t); Tender: 2 LT (2.0 t)
Water cap.	Engine: 650 imp gal (2,950 L); Tender: 900 imp gal (4,090 L)
Firebox:
• Type	Round-top
• Grate area	11 sq ft (1.0 m2)
Boiler:;
• Pitch	5 ft 10+1⁄2 in (1,791 mm)
• Tube plates	10 ft (3,048 mm)
Boiler pressure	130 psi (896 kPa)
Safety valve	Salter
Heating surface:
• Firebox	58 sq ft (5.4 m2)
• Tubes	692 sq ft (64.3 m2)
• Total surface	750 sq ft (70 m2)
Cylinders	Two
Cylinder size	15 in (381 mm) bore; 20 in (508 mm) stroke
Valve gear	Stephenson
Train brakes	Clarke's chain brakes
Couplers	Johnston link-and-pin
Tractive effort
Performance figures
Tractive effort	11,546 lbf (51.36 kN) @ 75%
Operators
Career
Operators	Cape Government Railways
Class	2nd Class
Number in class	27
Numbers	E17-E26, M5-M10, M25-M33, W1-W2
Delivered	1875–1879
First run	1875

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.

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.

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