LB&SCR I2 class

Specifications
Specifications
Configuration:;
• Whyte	4-4-2T
Gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Leading dia.	3 ft 6 in (1.067 m)
Driver dia.	5 ft 6 in (1.676 m)
Trailing dia.	4 ft 0 in (1.219 m)
Loco weight	68.5 long tons (69.6 t; 76.7 short tons) I2,; 70.25 long tons (71.38 t; 78.68 short tons) I4
Fuel type	Coal
Water cap.	2,238 imp gal (10,170 L; 2,688 US gal)
Boiler pressure	170 psi (12 bar; 1.2 MPa)
Cylinders	Two, inside
Cylinder size	17.5 in × 26 in (444 mm × 660 mm)

Type and origin
Type and origin
Power type	Steam
Designer	D.E. Marsh
Builder	Brighton Works
Build date	1907-1909
Total produced	I2: 10; I4: 5

LB&SCR I2 & I4 classes
LB&SCR I2 & I4 classes
	Side-view builder's photo of LB&SCR I2 class 4-4-2T.
Power type
Type and origin
Power type	Steam
Designer	D.E. Marsh
Builder	Brighton Works
Build date	1907-1909
Total produced	I2: 10; I4: 5
Configuration:;
Specifications
Configuration:;
• Whyte	4-4-2T
Gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Leading dia.	3 ft 6 in (1.067 m)
Driver dia.	5 ft 6 in (1.676 m)
Trailing dia.	4 ft 0 in (1.219 m)
Loco weight	68.5 long tons (69.6 t; 76.7 short tons) I2,; 70.25 long tons (71.38 t; 78.68 short tons) I4
Fuel type	Coal
Water cap.	2,238 imp gal (10,170 L; 2,688 US gal)
Boiler pressure	170 psi (12 bar; 1.2 MPa)
Cylinders	Two, inside
Cylinder size	17.5 in × 26 in (444 mm × 660 mm)
Tractive effort
Performance figures
Tractive effort	I2: 17,425 lbf (77.51 kN),; I4: 17,790 lbf (79.13 kN)
Retired
Career
Retired	1933-1940
Disposition	All scrapped

The LBSCR I2 class was a class of 4-4-2 steam tank locomotives designed by D. E. Marsh for suburban passenger service on the London, Brighton and South Coast Railway. The I4 class were of the same design but incorporated a superheated boiler.

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