SSLR 4

Specifications
Specifications
Configuration:;
• Whyte	4-4-0T
• UIC	2′B n2t
Gauge	3 ft (914 mm)
Leading dia.	1 ft 10 in (0.559 m)
Driver dia.	3 ft 4 in (1.016 m)
Axle load	9 long tons 11 cwt (21,400 lb or 9.7 t); 9 long tons 11 cwt (9.7 t; 10.7 short tons)
Adhesive weight	18 long tons 10 cwt (41,400 lb or 18.8 t); 18 long tons 10 cwt (18.8 t; 20.7 short tons)
Loco weight	24 long tons 6 cwt (54,400 lb or 24.7 t); 24 long tons 6 cwt (24.7 t; 27.2 short tons)
Fuel type	Coal
Fuel capacity	0 long tons 10 cwt (1,100 lb or 0.5 t); 0 long tons 10 cwt (0.51 t; 0.56 short tons)
Water cap.	500 or 600 imp gal (2,300 or 2,700 L; 600 or 720 US gal)
Firebox:
• Grate area	9 sq ft (0.84 m2)
Boiler pressure	150 lbf/in2 (1.03 MPa)
Heating surface:
• Tubes	453 sq ft (42.1 m2)
• Firebox	56 sq ft (5.2 m2)
Cylinders	Two
Cylinder size	12 in × 18 in (305 mm × 457 mm)

Type and origin
Type and origin
Power type	Steam
Builder	Nasmyth, Wilson & Co.
Serial number	341 or 342
Build date	1888

Schull & Skibbereen Light Railway 4
Schull & Skibbereen Light Railway 4
Power type
Type and origin
Power type	Steam
Builder	Nasmyth, Wilson & Co.
Serial number	341 or 342
Build date	1888
Configuration:;
Specifications
Configuration:;
• Whyte	4-4-0T
• UIC	2′B n2t
Gauge	3 ft (914 mm)
Leading dia.	1 ft 10 in (0.559 m)
Driver dia.	3 ft 4 in (1.016 m)
Axle load	9 long tons 11 cwt (21,400 lb or 9.7 t); 9 long tons 11 cwt (9.7 t; 10.7 short tons)
Adhesive weight	18 long tons 10 cwt (41,400 lb or 18.8 t); 18 long tons 10 cwt (18.8 t; 20.7 short tons)
Loco weight	24 long tons 6 cwt (54,400 lb or 24.7 t); 24 long tons 6 cwt (24.7 t; 27.2 short tons)
Fuel type	Coal
Fuel capacity	0 long tons 10 cwt (1,100 lb or 0.5 t); 0 long tons 10 cwt (0.51 t; 0.56 short tons)
Water cap.	500 or 600 imp gal (2,300 or 2,700 L; 600 or 720 US gal)
Firebox:
• Grate area	9 sq ft (0.84 m2)
Boiler pressure	150 lbf/in2 (1.03 MPa)
Heating surface:
• Tubes	453 sq ft (42.1 m2)
• Firebox	56 sq ft (5.2 m2)
Cylinders	Two
Cylinder size	12 in × 18 in (305 mm × 457 mm)
Tractive effort
Performance figures
Tractive effort	8,260 lbf (36.74 kN)
Operators
Career
Operators	SSLR » Great Southern Railways » CIÉ
Class	GSR/CIÉ: 4S or DN5
Number in class	1
Numbers	4
Official name	Erin
Withdrawn	1954

Schull and Skibbereen Railway 4 Erin was a 4-4-0 T locomotive manufactured by Nasmyth, Wilson and Company of Patricroft near Manchester in 1888. It was the Schull and Skibbereen Railway's fourth locomotive.

In 1925, the railway was absorbed into the Great Southern Railways and renumbered 4S, and placed in Class 4S or Class DN5 as the sole member. Following the GSR classification by wheel arrangement, "D" meaning a locomotive with a 4-4-0 arrangement, "N" meaning Narrow Gauge. The 4-4-0 wheel arrangement is unusual for tank locomotives but more common on narrow gauge than standard.

The locomotive was withdrawn and scrapped in 1954.

References

Clements, Jeremy & McMahon, Michael (2008). Locomotives of the GSR. Newtownards: Colourpoint Books. p. 222. ISBN 978-1-906578-26-8.

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