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Record: 71951 (21/04/2026)
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HR/LMS Cumming "4F" Class 4-6-0
Class Types
| HR Class |
Superheated Goods |
| LMS Class |
4F |
General
| Designer |
Christopher Cumming |
| Introduced |
1918 |
| Pre-Grouping Company |
Highland Railway |
| Grouping Company |
London, Midland & Scottish Railway |
| Wheel Arrangement |
4-6-0 |
| Number Built as 4F |
8 |
| First in Service |
04/1918 |
| Last in Service |
10/1952 |
| Manufacturers |
|
| Orders |
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Power
| Variant Introduced |
1918 |
| Tractive Effort |
23,587lbs |
| Outside Cylinders |
20.5" x 26" (2 off) |
Wheels
| Pony |
3' |
| Drivers |
5' 3" |
| Locomotive Wheelbase |
24' 1" |
| Tender Wheelbase |
12' 6" |
| Total Wheelbase |
46' 6" |
| Descriptive Wheelbase |
6' 7" + 5' 0" + 6' 0" + 6' 6" + 9' 11" + 6' 0" + 6' 6" = 46' 6" |
Dimensions
| Length (over buffers) |
55' 5" |
| Weight (in running order) |
92t 2cwt |
| Weight (loco only) |
56t 9cwt |
| Adhesive Weight |
41t 14cwt |
| Water Capacity |
3,000gal |
| Coal Capacity |
5t 0cwt |
Boiler & Firebox
| Boiler Pitch |
8' 8" |
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