GCR Class 9K

Specifications
Specifications
Configuration:;
• Whyte	4-4-2T
• UIC	2′B1′ n2t, later 2′B1′ h2t
Gauge	4 ft 8+1⁄2 in (1,435 mm)
Leading dia.	3 ft 6 in (1.067 m)
Driver dia.	5 ft 7 in (1.702 m)
Trailing dia.	3 ft 9 in (1.143 m)
Wheelbase	29 ft 10.5 in (9.106 m)
Loco weight	66.65 long tons (67.72 t)
Fuel type	Coal
Fuel capacity	3.65 long tons (3.71 t)
Water cap.	1,450 imperial gallons (6,600 L; 1,740 US gal)
Firebox:
• Grate area	19.59 sq ft (1.820 m2)
Boiler pressure	160 psi (1.10 MPa)
Heating surface:
• Firebox	108 sq ft (10.0 m2)
• Tubes	1,778 sq ft (165.2 m2)
• Total surface	1,101 sq ft (102.3 m2) (saturated)
Cylinders	Two, inside
Cylinder size	18 in × 26 in (457 mm × 660 mm)
Valve gear	Stephenson
Valve type	Slide valves

Type and origin
Type and origin
Power type	Steam
Designer	John G. Robinson
Build date	1903–1905
Total produced	40 (9K / C13); 12 (9L / C14)

Great Central Railway 9K class
London & North Eastern Railway C13
Great Central Railway 9K class; London & North Eastern Railway C13
	LNER 7413 at Chester Northgate locomotive depot in 1947
Power type
Type and origin
Power type	Steam
Designer	John G. Robinson
Build date	1903–1905
Total produced	40 (9K / C13); 12 (9L / C14)
Configuration:;
Specifications
Configuration:;
• Whyte	4-4-2T
• UIC	2′B1′ n2t, later 2′B1′ h2t
Gauge	4 ft 8+1⁄2 in (1,435 mm)
Leading dia.	3 ft 6 in (1.067 m)
Driver dia.	5 ft 7 in (1.702 m)
Trailing dia.	3 ft 9 in (1.143 m)
Wheelbase	29 ft 10.5 in (9.106 m)
Loco weight	66.65 long tons (67.72 t)
Fuel type	Coal
Fuel capacity	3.65 long tons (3.71 t)
Water cap.	1,450 imperial gallons (6,600 L; 1,740 US gal)
Firebox:
• Grate area	19.59 sq ft (1.820 m2)
Boiler pressure	160 psi (1.10 MPa)
Heating surface:
• Firebox	108 sq ft (10.0 m2)
• Tubes	1,778 sq ft (165.2 m2)
• Total surface	1,101 sq ft (102.3 m2) (saturated)
Cylinders	Two, inside
Cylinder size	18 in × 26 in (457 mm × 660 mm)
Valve gear	Stephenson
Valve type	Slide valves
Tractive effort
Performance figures
Tractive effort	17,100 lbf (76 kN)
Operators
Career
Operators	Great Central Railway; → London and North Eastern Railway; → British Railways;
Class	GCR: 9K; LNER: C13;
Number in class	40
Numbers	GCR:; LNER:; later 7400-7439; BR: 67400-67439;
Withdrawn	1952–1960
Disposition	All scrapped

The Great Central Railway 9K and 9L classes were two related classes of 4-4-2T Atlantic steam locomotives. They were both intended for suburban passenger services. After the 1923 Grouping, they served the LNER as classes C13 and C14.

Their designer was John G. Robinson. The design was based on the earlier Pollitt Class 9G 2-4-2T locomotives, but with a lengthened boiler and a leading bogie to carry it. This extension of running gear also resembled an early Robinson design for the Irish Waterford, Limerick and Western Railway.

All passed into British Railways service and the first was not withdrawn until 1952. Most were withdrawn between 1955 and 1959. The last examples of each class, 9K 67417 and 9L 67450, were scrapped in 1960. None were preserved.

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