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MR/LMS Johnson "2606" Class 4-4-0

General

Designer

Samuel Johnson

Introduced

1900

Pre-Grouping Company

Midland Railway

Grouping Company

London, Midland & Scottish Railway

Wheel Arrangement

4-4-0

Number Built as 2606

First in Service

1900

Last in Service

11/1947

Manufacturers

Manufacturer	Total
Derby Works	10

Orders

Builder	Sponsor	Order #	Date	Size
Derby Works		1869	1900	10

**Power**
Variant Introduced	1900
Inside Cylinders	19.5" x 26" (2 off)

**Wheels**
Pony	3' 6¹⁄₂"
Drivers	6' 9"
Locomotive Wheelbase	23' 2¹⁄₂"
Descriptive Wheelbase	6' 6" + 7' 2½" + 9' 6" = 23' 2½" (engine only)

**Dimensions**
Weight (loco only)	53t 0cwt

**Boiler & Firebox**
Boiler Diagram	GX
Boiler Max Diameter	4' 8"
Boiler Barrel Length	10' 6"
Boiler Pressure	180lbs
Firebox Type	Belpaire
Firebox Length	8'
Total Evaporative Area	1519ft²
Total Heating Area	1519ft²

Complete BR Locomotive Database 1948-1997

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MR/LMS Johnson "2606" Class 4-4-0