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Record: 71951 (21/04/2026)
(Free MySQL Counter)

MR/LMS Johnson "2781" Class 4-4-0


General
Designer Samuel Johnson
Pre-Grouping Company Midland Railway
Grouping Company London, Midland & Scottish Railway
Wheel Arrangement 4-4-0
Number Built as 2781 70
First in Service 1902
Last in Service 09/1952
Manufacturers
ManufacturerTotal
Derby Works 70
Orders
BuilderSponsorOrder #DateSize
Derby Works  2135 1902 10
Derby Works  2250 1902 10
Derby Works  2458 1903 10
Derby Works  2601 1903 10
Derby Works  2726 1904 10
Derby Works  2798 1905 10
Derby Works  2918 09/1905 10

Power
2781 2781
Variant Introduced 1902 1904
Inside Cylinders 19.5" x 26" (2 off)
As 2781

Wheels
2781 2781
Pony 3' 31⁄2"
As 2781
Drivers 6' 9"
As 2781
Locomotive Wheelbase 23' 21⁄2"
As 2781
Descriptive Wheelbase 6' 0" + 7' 8½" + 9' 6" = 23' 2½" (engine only)
As 2781

Dimensions
2781 2781
Weight (loco only) 53t 0cwt
As 2781

Boiler & Firebox
2781 2781
Boiler Diagram G8 G8A
Boiler Max Diameter 4' 8" 4' 8"
Boiler Barrel Length 11' 11'
Boiler Pressure 180lbs 200lbs
Firebox Type Belpaire Belpaire
Firebox Length 8' 8'
Total Evaporative Area 1528ft2 1472ft2
Total Heating Area 1528ft2 1472ft2