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Record: 10408 (31/12/2024)
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MR/LMS Johnson "2601" Class 4-2-2
General
Designer |
Samuel Johnson |
Introduced |
1900 |
Pre-Grouping Company |
Midland Railway |
Grouping Company |
London, Midland & Scottish Railway |
Wheel Arrangement |
4-2-2 |
Number Built as 2601 |
10 |
First in Service |
12/1899 |
Last in Service |
07/1922 |
Manufacturers |
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Orders |
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Power
Variant Introduced |
1900 |
Inside Cylinders |
19.5" x 26" (2 off) |
Inside Valves |
Slide |
Wheels
Pony |
3' 6" |
Drivers |
7' 91⁄2" |
Truck |
4' 4" |
Locomotive Wheelbase |
23' 11⁄2" |
Descriptive Wheelbase |
6' 0" + 7' 4½" + 9' 9" - 23' 1½" (engine only) |
Dimensions
Weight (in running order) |
50t 3cwt |
Boiler & Firebox
Boiler Diagram |
F |
Boiler Max Diameter |
4' 2" |
Boiler Barrel Length |
10' 6" |
Boiler Pressure |
180lbs |
Firebox Type |
Round Top |
Firebox Length |
8' |
Total Evaporative Area |
1217ft2 |
Total Heating Area |
1217ft2 |
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