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Lancashire & Yorkshire class 30 (Hughes)
London, Midland & Scottish class 6F
Great Britain | 1907 | 80 produced
Locomotive Magazine, August 1907

George Hughes produced his first class 30 locomotive by rebuiding a class 30 locomotive from his predecessor Aspinall to a four-cylinder compound engine. Ten more were created in this form. Other locomotives with two cylinders and simple steam expansion, which were built from 1910 onwards, were also assigned to class 30. 29 of these had been converted from Aspinall's class 30 and 40 more had Hughes built new at Horwich. Later they received superheaters so that they were similar to the class 31. They were assigned to power class 6F by the LMS. The last engines survived the formation of British Railways and were retired in 1951.

Variantcompoundsimple
General
Built19071910-1918
ManufacturerHorwich
Axle config0-8-0 (Eight-coupled) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Service weight136,192 lbs149,632 lbs
Adhesive weight136,192 lbs149,632 lbs
Total weight229,040 lbs242,480 lbs
Axle load34,048 lbs39,200 lbs
Water capacity4,323 us gal
Fuel capacity11,200 lbs (coal)
Power
Power sourcesteam
Starting effort69,901 lbf29,467 lbf
with start valve83,881 lbf
Power Plant
Driver diameter54 in
Boiler pressure180 psi
Expansion typecompoundsimple
Cylindersfour, HP: 155 x 26 in
and LP: 22 x 26 in
two, 20 x 26 in
Boiler
Grate area23.1 sq ft25.6 sq ft
Firebox area147 sq ft190 sq ft
Tube heating area1,767 sq ft2,263 sq ft
Evaporative heating area1,914 sq ft2,453 sq ft
Total heating area1,914 sq ft2,453 sq ft
Calculated Values
steam locomotive
freight
George Hughes
two-axle compound
last changed: 04/2023
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