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London, Midland & Scottish class 4P Compound 4-4-0
Great Britain | 1924 | 195 produced
No. 1039 in July 1947 at Ashchurch
No. 1039 in July 1947 at Ashchurch
Ben Brooksbank / Ex-Midland Compound 4-4-0 at Ashchurch
General
Built1924-1932
ManufacturerDerby, Horwich, North British, Vulcan Foundry
Axle config4-4-0 (American) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Length56 ft 7 7/8 in
Wheelbase24 ft 3 in
Fixed wheelbase9 ft 7 in
Service weight138,208 lbs
Adhesive weight87,808 lbs
Total weight231,608 lbs
Axle load43,904 lbs
Water capacity4,203 us gal
Fuel capacity12,320 lbs (coal)
Power
Power sourcesteam
Estimated power1,300 hp (969 kW)
Optimal speed40 mph
Starting effort20,967 lbf
with start valve25,160 lbf
Power Plant
Driver diameter81 in
Boiler pressure200 psi
Expansion typecompound
Cylindersthree, HP: 19 x 26 in
and LP: 21 x 26 in
Boiler
Grate area28.4 sq ft
Firebox area147.3 sq ft
Tube heating area1,169.7 sq ft
Evaporative heating area1,317 sq ft
Superheater area291 sq ft
Total heating area1,608 sq ft
Calculated Values
steam locomotive
express
last changed: 08 2023
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