Midland Railway 483 Class
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The Midland Railway 483 Class 4-4-0 was a class of steam locomotive designed for passenger work. This design formed the basis for the later LMS Class 2P 4-4-0. The London Midland and Scottish Railway seems to have inherited 3 batches of these locomotives and some of them passed into British Railways (BR) ownership in 1948.
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[edit] Details
- BR numbers 40332-40397 (17 locomotives) originally built 1882-1891, some rebuilt from 1910 onwards
- BR numbers 40400-40562 (143 locomotives) originally built 1891-1901, all rebuilt between 1912 and 1923
- BR numbers 40322-40326 (5 locomotives) built for Somerset and Dorset Joint Railway 1914-1921 and taken into LMS stock in 1930
Note: two of the above number series contain gaps so the totals do not tally.
[edit] Dimensions
[edit] Unrebuilt locos
- LMS/BR Power classification, 2P
- Locomotive weight, 53 tons 7 cwt
- Tender weight, Not known
- Boiler pressure, 160 psi
- Superheater, No
- Cylinders, 18"x26"
- Driving wheel diameter, 6' 6½"
- Tractive effort, 15,960 lb
- Valve gear, Stephenson (slide valves)
[edit] Rebuilt locos
- LMS/BR Power classification, 2P
- Locomotive weight, 53 tons 7 cwt
- Tender weight, Not known
- Boiler pressure, 160 psi
- Superheater, Yes
- Cylinders, 20½"x26"
- Driving wheel diameter, 7' 0½"
- Tractive effort, 17,585 lb
- Valve gear, Stephenson (piston valves)
For terminology, see Steam locomotive components
