SER Q class

SER Q class
SER Q class
	South Eastern Railway Class Q, 312
Power type
Type and origin
Power type	Steam
Designer	James Stirling
Build date	1881–1897
Total produced	118
Configuration:;
Specifications
Configuration:;
• Whyte	0-4-4T
• UIC	B2′ n2
Gauge	4 ft 8+1⁄2 in (1,435 mm)
Driver dia.	5 ft 6 in (1.676 m)
Trailing dia.	3 ft 0 in (0.914 m)
Wheelbase	22 ft (7 m)
Axle load	16 long tons (16.3 t)
Loco weight	48.65 long tons (49.4 t)
Fuel type	Coal
Fuel capacity	0.15 long tons (0.2 t)
Water cap.	1,050 imp gal (4,800 L; 1,260 US gal)
Firebox:
• Grate area	16 sq ft (1 m2)
Boiler pressure	140 lbf/in2 (0.97 MPa)
Heating surface:
• Tubes and flues	922.5 sq ft (85.70 m2)
Cylinders	Two, inside
Cylinder size	18 in × 26 in (457 mm × 660 mm)
Valve gear	Stephenson
Tractive effort
Performance figures
Tractive effort	15,189 lbf (67.56 kN)
Operators
Career
Operators	South Eastern Railway; → South Eastern and Chatham Railway; → Southern Railway;
Class	Q
Number in class	1 January 1923: 32
Withdrawn	1907–1929
Disposition	All scrapped

The SER Q class was a class of 0-4-4T steam locomotives of the South Eastern Railway. The class was designed by James Stirling and introduced in 1881.^[1]