LB&SCR H2 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)
Loco weight	69 long tons 5 cwt (155,100 lb or 70.4 t) (77.6 short tons)
Fuel type	Coal
Boiler pressure	170 psi (1.17 MPa); 200 psi (1.38 MPa) (1938)
Cylinders	Two, outside
Cylinder size	21 in × 26 in (533 mm × 660 mm)

LB&SCR H2 class
LB&SCR H2 class
	H2 seen in Southern Railway livery
Power type
Type and origin
Power type	Steam
Designer	D. E. Marsh/L. B. Billinton
Builder	Brighton Works
Build date	1911–1912, 2024
Total produced	6 + 1 replica
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)
Loco weight	69 long tons 5 cwt (155,100 lb or 70.4 t) (77.6 short tons)
Fuel type	Coal
Boiler pressure	170 psi (1.17 MPa); 200 psi (1.38 MPa) (1938)
Cylinders	Two, outside
Cylinder size	21 in × 26 in (533 mm × 660 mm)
Tractive effort
Performance figures
Tractive effort	20,800 lbf (92.5 kN); 24,000 lbf (106.8 kN) (1938)
Operators
Career
Operators	London, Brighton and South Coast Railway; Southern Railway; British Railways;
Class	H2
Power class	BR: 4P
Withdrawn	1949, 1956–1958
Disposition	All original locomotives scrapped, 1 replica completed

The London, Brighton and South Coast Railway H2 class is a class of 4-4-2 steam locomotives for express passenger work. They were designed when D. E. Marsh was officially Locomotive Superintendent, and were built at Brighton Works in 1911 and 1912. As Marsh had worked on the Great Northern Railway as Chief Assistant to Henry Ivatt, the design closely followed that of the GNR Class C1 (large boiler). The entire class was scrapped by British Railways, but a replica entered service on the Bluebell Railway in 2024.