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MR/LMS Johnson "156" Class 4-4-0

General

Designer

Samuel Johnson

Introduced

1896

Pre-Grouping Company

Midland Railway

Grouping Company

London, Midland & Scottish Railway

Wheel Arrangement

4-4-0

Number Built as 156

Conversions from other classes

Conversions to other classes

First in Service

1896

Last in Service

02/1961

Manufacturers

Manufacturer	Total
Derby Works	25
Sharp Stewart	20

Orders

Builder	Sponsor	Order #	Date	Size
Derby Works		1458	1896	5
Derby Works		1460	1896	3
Derby Works		1597	1897	10
Derby Works		1597	1898	3
Sharp Stewart		n/a	1899	20
Derby Works		2072	1901	4

**Power**
	156	Renewals of class 1667	156
Variant Introduced	1896	1896	1899
Inside Cylinders	18.5" x 26" (2 off)	As 156	As 156

**Wheels**
	156	Renewals of class 1667	156
Pony	3'	As 156	As 156
Drivers	7'	As 156	As 156
Locomotive Wheelbase	22' 0¹⁄₂"	As 156	As 156
Descriptive Wheelbase	6' 0" + 7' 0½" + 9' 0" = 22' 0½" (engine only)	As 156	As 156

**Dimensions**
	156	Renewals of class 1667	156
Weight (loco only)	51t 0cwt	As 156	As 156

**Boiler & Firebox**
	156	Renewals of class 1667	156
Boiler Diagram	D	B(b)	D
Boiler Max Diameter	4' 1"	4' 1"	4' 1"
Boiler Barrel Length	10' 4"	10' 6"	10' 4"
Boiler Pressure	160lbs	160lbs	160lbs
Firebox Type	Round Top	Round Top	Round Top
Firebox Length	6' 6"	5' 11"	6' 6"
Firebox Grate Area		17.5ft²
Firebox Heating Surface		110ft²
Tube Number		223
Tube Diameter		1³⁄₄"
Tube Area		1123ft²
Total Evaporative Area	1223ft²	1233ft²	1223ft²
Total Heating Area	1223ft²	1233ft²	1223ft²

Complete BR Locomotive Database 1948-1997

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MR/LMS Johnson "156" Class 4-4-0