LNER Thompson Class A2/1

Specifications
Specifications
Configuration:;
• Whyte	4-6-2
Gauge	4 ft 8+1⁄2 in (1,435 mm)
Driver dia.	6 ft 2 in (1.880 m)
Loco weight	98 long tons (100 t)
Boiler pressure	225 psi (1.55 MPa)
Cylinders	Three
Cylinder size	19 in × 26 in (483 mm × 660 mm)

Type and origin
Type and origin
Power type	Steam
Designer	Edward Thompson
Builder	Darlington Works
Build date	1944
Total produced	4

LNER Thompson Class A2/1
LNER Thompson Class A2/1
	LNER Thompson A2/1 Pacific No. 60507 'Highland Chieftain' and train (right) waits for departure in August 1960.
Power type
Type and origin
Power type	Steam
Designer	Edward Thompson
Builder	Darlington Works
Build date	1944
Total produced	4
Configuration:;
Specifications
Configuration:;
• Whyte	4-6-2
Gauge	4 ft 8+1⁄2 in (1,435 mm)
Driver dia.	6 ft 2 in (1.880 m)
Loco weight	98 long tons (100 t)
Boiler pressure	225 psi (1.55 MPa)
Cylinders	Three
Cylinder size	19 in × 26 in (483 mm × 660 mm)
Tractive effort
Performance figures
Tractive effort	36,385 lbf (161.85 kN)
Operators
Career
Operators	London and North Eastern Railway ; British Railways
Class	A2/1
Power class	7P6F
Numbers	LNER (1944): 3696-3699; LNER (from 1945): 507-510 ; BR: 60507-60510
Locale	East Coast Main Line
Withdrawn	1960–1961
Disposition	All scrapped

The London and North Eastern Railway (LNER) Thompson Class A2/1 was a class of 4-6-2 steam locomotives built at Darlington locomotive works during 1944. They were originally ordered as Class V2 locomotives, as designed by Sir Nigel Gresley, but were revised during construction into a 4-6-2 'Pacific' arrangement under the instruction of Edward Thompson.

Disambiguation: LNER Thompson Class A2

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