LNER Peppercorn Class A2

Specifications
Specifications
Configuration:;
• Whyte	4-6-2
• UIC	2′C1′ h3
Gauge	4 ft 8+1⁄2 in (1,435 mm)
Leading dia.	3 ft 2 in (0.965 m)
Driver dia.	6 ft 2 in (1.880 m)
Trailing dia.	3 ft 8 in (1.118 m)
Wheelbase	60 ft 6 in (18.44 m)
• Engine	34 ft 4 in (10.46 m)
• Coupled	13 ft 0 in (3.96 m)
Length	71 ft 0.5 in (21.654 m)
Axle load	22 long tons (22.4 t; 24.6 short tons)
Loco weight	101 long tons (102.6 t; 113.1 short tons)
Total weight	160.5 long tons (163.1 t; 179.8 short tons)
Fuel type	Coal
Fuel capacity	9 long tons (9.1 t; 10.1 short tons)
Water cap.	5,000 imp gal (23,000 L; 6,000 US gal)
Firebox:
• Grate area	50 sq ft (4.6 m2)
Boiler pressure	250 psi (1.72 MPa)
Heating surface:
• Firebox	245 sq ft (22.8 m2)
• Tubes	1,212 sq ft (112.6 m2)
• Flues	1,005 sq ft (93.4 m2)
• Total surface	2,461 sq ft (228.6 m2)
Superheater:;
• Heating area	680 sq ft (63 m2)
Cylinders	Three
Cylinder size	19 in × 26 in (483 mm × 660 mm)
Valve gear	Walschaerts
Valve type	Piston valves

Type and origin
Type and origin
Power type	Steam
Designer	Arthur Peppercorn
Builder	Doncaster Works
Build date	1947–1948
Total produced	15

LNER Peppercorn Class A2
LNER Peppercorn Class A2
	60533 Happy Knight at Doncaster in 1953.
Power type
Type and origin
Power type	Steam
Designer	Arthur Peppercorn
Builder	Doncaster Works
Build date	1947–1948
Total produced	15
Configuration:;
Specifications
Configuration:;
• Whyte	4-6-2
• UIC	2′C1′ h3
Gauge	4 ft 8+1⁄2 in (1,435 mm)
Leading dia.	3 ft 2 in (0.965 m)
Driver dia.	6 ft 2 in (1.880 m)
Trailing dia.	3 ft 8 in (1.118 m)
Wheelbase	60 ft 6 in (18.44 m)
• Engine	34 ft 4 in (10.46 m)
• Coupled	13 ft 0 in (3.96 m)
Length	71 ft 0.5 in (21.654 m)
Axle load	22 long tons (22.4 t; 24.6 short tons)
Loco weight	101 long tons (102.6 t; 113.1 short tons)
Total weight	160.5 long tons (163.1 t; 179.8 short tons)
Fuel type	Coal
Fuel capacity	9 long tons (9.1 t; 10.1 short tons)
Water cap.	5,000 imp gal (23,000 L; 6,000 US gal)
Firebox:
• Grate area	50 sq ft (4.6 m2)
Boiler pressure	250 psi (1.72 MPa)
Heating surface:
• Firebox	245 sq ft (22.8 m2)
• Tubes	1,212 sq ft (112.6 m2)
• Flues	1,005 sq ft (93.4 m2)
• Total surface	2,461 sq ft (228.6 m2)
Superheater:;
• Heating area	680 sq ft (63 m2)
Cylinders	Three
Cylinder size	19 in × 26 in (483 mm × 660 mm)
Valve gear	Walschaerts
Valve type	Piston valves
Tractive effort
Performance figures
Tractive effort	40,430 lbf (179.84 kN)
Operators
Career
Operators	London and North Eastern Railway » British Railways
Class	LNER: A2
Power class	BR: 8P7F
Axle load class	Route Availability 9
Withdrawn	November 1962 - June 1963, April 1965 - December 1966
Disposition	One preserved; remainder scrapped

The London and North Eastern Railway (LNER) Peppercorn Class A2 is a class of steam locomotive designed for express passenger work by Arthur Peppercorn, the chief designer of the LNER after Edward Thompson. All save the first of the 15 built were constructed under British Railways after nationalisation in 1948. Only one example is preserved.

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