Neha Patil (Editor)

Midland Railway 483 Class

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Power type
  
Steam

Configuration
  
4-4-0

Designer
  
Samuel W. Johnson

Midland Railway 483 Class

Build date
  
Midland locos built 1882-1901 S&DJ locos built 1914-1921

Gauge
  
4 ft 8 ⁄2 in (1,435 mm) standard gauge

Driver dia.
  
Original, 6 ft 6.5 in (1.994 m) Rebuilt, 7 ft 0.5 in (2.146 m)

The Midland Railway 483 Class 4-4-0 was a class of steam locomotive designed by Samuel W. Johnson for passenger work on the Midland Railway. This design formed the basis for the later LMS Class 2P 4-4-0. The London, Midland and Scottish Railway (LMS) seems to have inherited three batches of these locomotives and some of them passed into British Railways (BR) ownership in 1948.

Contents

Numbering

  • 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.

    Rebuilding

    On rebuilding, the Stephenson valve gear was retained but the following changes were made:

  • 18 in × 26 in (460 mm × 660 mm) cylinders with slide valves were replaced by 20.5 in × 26 in (520 mm × 660 mm) cylinders with piston valves
  • 6 ft 6.5 in (1.994 m) driving wheels were replaced by 7 ft 0.5 in (2.146 m) driving wheels
  • a superheater was fitted

    • References

    Midland Railway 483 Class Wikipedia
    (Text) CC BY-SA