South African Class 14A 4-8-2

Specifications
Specifications
Configuration:;
• Whyte	4-8-2 (Mountain)
• UIC	2'D1'h2
Driver	2nd coupled axle
Gauge	3 ft 6 in (1,067 mm) Cape gauge
Leading dia.	28+1⁄2 in (724 mm)
Coupled dia.	48 in (1,219 mm)
Trailing dia.	33 in (838 mm)
Tender wheels	34 in (864 mm)
Wheelbase	56 ft 11+3⁄4 in (17,367 mm)
• Engine	30 ft 7 in (9,322 mm)
• Leading	6 ft 2 in (1,880 mm)
• Coupled	12 ft 9 in (3,886 mm)
• Tender	16 ft 9 in (5,105 mm)
• Tender bogie	4 ft 7 in (1,397 mm)
Length	65 ft 4+5⁄8 in (19,929 mm)
Height	♠ 12 ft 10 in (3,912 mm); ♥ 12 ft 11+3⁄4 in (3,956 mm)
Axle load	♠ 15 LT (15,240 kg); ♥♣ 15 LT 16 cwt (16,050 kg)
• Leading	♠ 14 LT 6 cwt (14,530 kg); ♥♣ 15 LT 12 cwt (15,850 kg)
• 1st coupled	♠ 14 LT 19 cwt (15,190 kg); ♥♣ 14 LT 14 cwt (14,940 kg)
• 2nd coupled	♠ 15 LT (15,240 kg); ♥♣ 15 LT 16 cwt (16,050 kg)
• 3rd coupled	♠ 14 LT 19 cwt (15,190 kg); ♥♣ 15 LT 2 cwt (15,340 kg)
• 4th coupled	♠ 14 LT 19 cwt (15,190 kg); ♥ ♣ 14 LT 18 cwt (15,140 kg)
• Trailing	♠ 11 LT 7 cwt (11,530 kg); ♥♣ 10 LT 19 cwt (11,130 kg)
• Tender bogie	Bogie 1: 27 LT 10 cwt (27,940 kg); Bogie 2: 23 LT 11 cwt (23,930 kg)
• Tender axle	13 LT 15 cwt (13,970 kg)
Adhesive weight	♠ 59 LT 17 cwt (60,810 kg); ♥♣ 60 LT 10 cwt (61,470 kg)
Loco weight	♠ 85 LT 10 cwt (86,870 kg); ♥♣ 87 LT 6 cwt (88,700 kg)
Tender weight	51 LT 1 cwt (51,870 kg)
Total weight	♠ 136 LT 11 cwt (138,700 kg); ♥♣ 138 LT 7 cwt (140,600 kg)
Tender type	MP1 (2-axle bogies); MP, MP1, MR, MS, MT, MT1, MT2, MX, MY, MY1 permitted
Fuel type	Coal
Fuel capacity	10 LT (10.2 t)
Water cap.	4,250 imp gal (19,300 L)
Generator	Pyle National turbo
Firebox:
• Type	♠ Belpaire - ♥ Round-top
• Grate area	37 sq ft (3.4 m2)
Boiler:;
• Model	Watson Standard no. 2
• Pitch	♠ 7 ft 7 in (2,311 mm); ♥ 8 ft 1⁄2 in (2,451 mm)
• Diameter	♠ 5 ft 1+5⁄8 in (1,565 mm); ♥ 5 ft 7+1⁄2 in (1,714 mm)
• Tube plates	♠ 19 ft (5,791 mm); ♥♣ 19 ft 4 in (5,893 mm); ♥♦ 19 ft 3+5⁄8 in (5,883 mm)
• Small tubes	♠ 119: 2+1⁄4 in (57 mm); ♥ 87: 2+1⁄2 in (64 mm)
• Large tubes	♠ 21: 5+1⁄2 in (140 mm); ♥ 30: 5+1⁄2 in (140 mm)
Boiler pressure	♠ 180 psi (1,241 kPa); ♥ 190 psi (1,310 kPa)
Safety valve	♠ Ramsbottom - ♥ Pop
Heating surface:
• Firebox	♠ 150 sq ft (14 m2); ♥ 142 sq ft (13.2 m2)
• Tubes	♠ 1,909 sq ft (177.4 m2); ♥ 1,933 sq ft (179.6 m2)
• Total surface	♠ 2,059 sq ft (191.3 m2); ♥ 2,075 sq ft (192.8 m2)
Superheater:;
• Heating area	♠ 483 sq ft (44.9 m2); ♥ 492 sq ft (45.7 m2)
Cylinders	Two
Cylinder size	21 in (533 mm) bore; 26 in (660 mm) stroke
Valve gear	Walschaerts
Valve type	Piston
Couplers	Johnston link-and-pin; AAR knuckle (1930s)

Type and origin
Type and origin
	♠ Class 14A as built with a Belpaire firebox; ♥ Class 14R rebuilt with a Watson Standard boiler; ♣ Steel firebox - ♦ Copper firebox
Power type	Steam
Designer	South African Railways; (D.A. Hendrie)
Builder	North British Locomotive Company
Serial number	20568-20587, 20822-20842
Model	Class 14A
Build date	1914
Total produced	41

South African Class 14A & 14R 4-8-2
South African Class 14A & 14R 4-8-2
	Class 14R no. 1905 at Klerksdorp, 17 April 1978
Power type
Type and origin
	♠ Class 14A as built with a Belpaire firebox; ♥ Class 14R rebuilt with a Watson Standard boiler; ♣ Steel firebox - ♦ Copper firebox
Power type	Steam
Designer	South African Railways; (D.A. Hendrie)
Builder	North British Locomotive Company
Serial number	20568-20587, 20822-20842
Model	Class 14A
Build date	1914
Total produced	41
Configuration:;
Specifications
Configuration:;
• Whyte	4-8-2 (Mountain)
• UIC	2'D1'h2
Driver	2nd coupled axle
Gauge	3 ft 6 in (1,067 mm) Cape gauge
Leading dia.	28+1⁄2 in (724 mm)
Coupled dia.	48 in (1,219 mm)
Trailing dia.	33 in (838 mm)
Tender wheels	34 in (864 mm)
Wheelbase	56 ft 11+3⁄4 in (17,367 mm)
• Engine	30 ft 7 in (9,322 mm)
• Leading	6 ft 2 in (1,880 mm)
• Coupled	12 ft 9 in (3,886 mm)
• Tender	16 ft 9 in (5,105 mm)
• Tender bogie	4 ft 7 in (1,397 mm)
Length	65 ft 4+5⁄8 in (19,929 mm)
Height	♠ 12 ft 10 in (3,912 mm); ♥ 12 ft 11+3⁄4 in (3,956 mm)
Axle load	♠ 15 LT (15,240 kg); ♥♣ 15 LT 16 cwt (16,050 kg)
• Leading	♠ 14 LT 6 cwt (14,530 kg); ♥♣ 15 LT 12 cwt (15,850 kg)
• 1st coupled	♠ 14 LT 19 cwt (15,190 kg); ♥♣ 14 LT 14 cwt (14,940 kg)
• 2nd coupled	♠ 15 LT (15,240 kg); ♥♣ 15 LT 16 cwt (16,050 kg)
• 3rd coupled	♠ 14 LT 19 cwt (15,190 kg); ♥♣ 15 LT 2 cwt (15,340 kg)
• 4th coupled	♠ 14 LT 19 cwt (15,190 kg); ♥ ♣ 14 LT 18 cwt (15,140 kg)
• Trailing	♠ 11 LT 7 cwt (11,530 kg); ♥♣ 10 LT 19 cwt (11,130 kg)
• Tender bogie	Bogie 1: 27 LT 10 cwt (27,940 kg); Bogie 2: 23 LT 11 cwt (23,930 kg)
• Tender axle	13 LT 15 cwt (13,970 kg)
Adhesive weight	♠ 59 LT 17 cwt (60,810 kg); ♥♣ 60 LT 10 cwt (61,470 kg)
Loco weight	♠ 85 LT 10 cwt (86,870 kg); ♥♣ 87 LT 6 cwt (88,700 kg)
Tender weight	51 LT 1 cwt (51,870 kg)
Total weight	♠ 136 LT 11 cwt (138,700 kg); ♥♣ 138 LT 7 cwt (140,600 kg)
Tender type	MP1 (2-axle bogies); MP, MP1, MR, MS, MT, MT1, MT2, MX, MY, MY1 permitted
Fuel type	Coal
Fuel capacity	10 LT (10.2 t)
Water cap.	4,250 imp gal (19,300 L)
Generator	Pyle National turbo
Firebox:
• Type	♠ Belpaire - ♥ Round-top
• Grate area	37 sq ft (3.4 m2)
Boiler:;
• Model	Watson Standard no. 2
• Pitch	♠ 7 ft 7 in (2,311 mm); ♥ 8 ft 1⁄2 in (2,451 mm)
• Diameter	♠ 5 ft 1+5⁄8 in (1,565 mm); ♥ 5 ft 7+1⁄2 in (1,714 mm)
• Tube plates	♠ 19 ft (5,791 mm); ♥♣ 19 ft 4 in (5,893 mm); ♥♦ 19 ft 3+5⁄8 in (5,883 mm)
• Small tubes	♠ 119: 2+1⁄4 in (57 mm); ♥ 87: 2+1⁄2 in (64 mm)
• Large tubes	♠ 21: 5+1⁄2 in (140 mm); ♥ 30: 5+1⁄2 in (140 mm)
Boiler pressure	♠ 180 psi (1,241 kPa); ♥ 190 psi (1,310 kPa)
Safety valve	♠ Ramsbottom - ♥ Pop
Heating surface:
• Firebox	♠ 150 sq ft (14 m2); ♥ 142 sq ft (13.2 m2)
• Tubes	♠ 1,909 sq ft (177.4 m2); ♥ 1,933 sq ft (179.6 m2)
• Total surface	♠ 2,059 sq ft (191.3 m2); ♥ 2,075 sq ft (192.8 m2)
Superheater:;
• Heating area	♠ 483 sq ft (44.9 m2); ♥ 492 sq ft (45.7 m2)
Cylinders	Two
Cylinder size	21 in (533 mm) bore; 26 in (660 mm) stroke
Valve gear	Walschaerts
Valve type	Piston
Couplers	Johnston link-and-pin; AAR knuckle (1930s)
Tractive effort
Performance figures
Tractive effort	♠ 32,250 lbf (143.5 kN) @ 75%; ♥ 37,360 lbf (166.2 kN) @ 75%
Operators
Career
Operators	South African Railways
Class	Class 14A & 14R
Number in class	41
Numbers	1576-1595, 1901-1921
Delivered	1914-1915
First run	1914
	The leading coupled axle had flangeless wheels

The South African Railways Class 14A 4-8-2 of 1914 was a steam locomotive.

In 1914 and 1915, the South African Railways placed 41 Class 14A steam locomotives with a 4-8-2 Mountain type wheel arrangement in service. It was a lighter version of the Class 14 which had entered service a year earlier.^[1]^[2]

^ Espitalier, T.J.; Day, W.A.J. (1945). The Locomotive in South Africa - A Brief History of Railway Development. Chapter VII - South African Railways (Continued). South African Railways and Harbours Magazine, July 1945. pp. 514-515.
^ Paxton, Leith; Bourne, David (1985). Locomotives of the South African Railways (1st ed.). Cape Town: Struik. pp. 10–11, 57–58. ISBN 0869772112.

[SAR&H_Jul_1945-1] Espitalier, T.J.; Day, W.A.J. (1945). The Locomotive in South Africa - A Brief History of Railway Development. Chapter VII - South African Railways (Continued). South African Railways and Harbours Magazine, July 1945. pp. 514-515.

[Paxton-Bourne-2] Paxton, Leith; Bourne, David (1985). Locomotives of the South African Railways (1st ed.). Cape Town: Struik. pp. 10–11, 57–58. ISBN 0869772112.

[1]

[2]

South African Class 14A 4-8-2

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