LSWR B4 class

Specifications
Specifications
Configuration:;
• Whyte	0-4-0T
• UIC	Bn2t
Gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Driver dia.	3 ft 9+3⁄4 in (1.162 m)
Wheelbase	7 ft 0 in (2.134 m)
Length	24 ft 10+1⁄2 in (7.58 m)
Height	12 ft (3.66 m)
Loco weight	33.4 long tons (33.9 t; 37.4 short tons) B4; 32.9 long tons (33.4 t; 36.8 short tons) K14
Fuel type	Coal
Fuel capacity	0.5 long tons (0.51 t; 0.56 short tons)
Water cap.	600 imp gal (2,700 L; 720 US gal)
Firebox:
• Grate area	10.75 sq ft (0.999 m2)
Boiler pressure	140 psi (0.97 MPa)
Cylinders	Two (outside)
Cylinder size	16 in × 22 in (406 mm × 559 mm)

Type and origin
Type and origin
Power type	Steam
Designer	William Adams
Builder	LSWR Nine Elms
Build date	1891 (10), 1893 (10), 1908 (5)
Total produced	25

LSWR B4 Class
LSWR B4 Class
	No. 87 as built with a stovepipe chimney and a full cab.
Power type
Type and origin
Power type	Steam
Designer	William Adams
Builder	LSWR Nine Elms
Build date	1891 (10), 1893 (10), 1908 (5)
Total produced	25
Configuration:;
Specifications
Configuration:;
• Whyte	0-4-0T
• UIC	Bn2t
Gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Driver dia.	3 ft 9+3⁄4 in (1.162 m)
Wheelbase	7 ft 0 in (2.134 m)
Length	24 ft 10+1⁄2 in (7.58 m)
Height	12 ft (3.66 m)
Loco weight	33.4 long tons (33.9 t; 37.4 short tons) B4; 32.9 long tons (33.4 t; 36.8 short tons) K14
Fuel type	Coal
Fuel capacity	0.5 long tons (0.51 t; 0.56 short tons)
Water cap.	600 imp gal (2,700 L; 720 US gal)
Firebox:
• Grate area	10.75 sq ft (0.999 m2)
Boiler pressure	140 psi (0.97 MPa)
Cylinders	Two (outside)
Cylinder size	16 in × 22 in (406 mm × 559 mm)
Tractive effort
Performance figures
Tractive effort	14,650 lbf (65.17 kN)
Operators
Career
Operators	London and South Western Railway; Southern Railway; British Railways
Class	LSWR: B4 (also LSWR K14 Class); SR: B4
Power class	BR: 0F, later 1F
Retired	1948–1963
Disposition	Two preserved, remainder scrapped

The London and South Western Railway B4 class is a class of 0-4-0 tank engines originally designed for station piloting and dock shunting. They were later used extensively in Southampton Docks for nearly half a century.

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