LB&SCR H1 class

Specifications
Specifications
Configuration:;
• Whyte	4-4-2
Gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Leading dia.	3 ft 6 in (1.067 m)
Driver dia.	6 ft 7+1⁄2 in (2.019 m)
Total weight	106 long tons 5 cwt (238,000 lb or 108 t) (119 short tons)
Fuel type	Coal
Boiler pressure	200 psi (13.79 bar; 1.38 MPa)
Cylinders	Two, outside
Cylinder size	18.5 in × 26 in (470 mm × 660 mm)

LB&SCR H1 class
LB&SCR H1 class
	Official photograph of No.37 shortly after delivery in 1905.
Power type
Type and origin
Power type	Steam
Designer	D. E. Marsh
Builder	Kitson & Co.
Build date	1905–1906
Total produced	5
Configuration:;
Specifications
Configuration:;
• Whyte	4-4-2
Gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Leading dia.	3 ft 6 in (1.067 m)
Driver dia.	6 ft 7+1⁄2 in (2.019 m)
Total weight	106 long tons 5 cwt (238,000 lb or 108 t) (119 short tons)
Fuel type	Coal
Boiler pressure	200 psi (13.79 bar; 1.38 MPa)
Cylinders	Two, outside
Cylinder size	18.5 in × 26 in (470 mm × 660 mm)
Tractive effort
Performance figures
Tractive effort	19,028 lbf (84.6 kN)
Operators
Career
Operators	London, Brighton and South Coast Railway; Southern Railway; British Railways;
Class	H1
Power class	BR: 3P
Withdrawn	1944–1951
Disposition	All scrapped

The London, Brighton and South Coast Railway (LB&SCR) H1 class was a class of 4-4-2 steam locomotives for express passenger work. They were designed by D. E. Marsh and were built by Messrs Kitson and Company in 1905 and 1906.