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Record: 10235 (26/09/2023)
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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
ManufacturerTotal
Hawthorn Leslie 8
Orders
BuilderSponsorOrder #DateSize
Hawthorn Leslie  n/a 02/1917 4
Hawthorn Leslie  n/a 12/06/1918 4

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"