Caledonian Railway 812 Class

From Wikipedia, the free encyclopedia

The Caledonian Railway 812 Class is a class of 0-6-0 steam tender locomotive designed by John F. McIntosh and introduced in 1899. It featured the boiler from the 721 "Dunalastair" Class 4-4-0s.

The 652 Class was apparently almost identical to the 812. It is believed that the difference between the two classes was that the 652s were fitted with Westinghouse air brakes for passenger train working, but this is subject to confirmation.

Contents 1 British Railways 2 Preservation and use in fiction 3 Dimensions 4 See also 5 External links

[edit] British Railways

Eighty-nine locomotives passed into British Railways ownership in 1948 and were numbered as follows (with gaps):

• Former 812 Class, 57550-57624
• Former 652 Class, 57625-57645

[edit] Preservation and use in fiction

Locomotive 828 (BR 57566) is the sole survivor of the class and is a very important example of Scottish industrial heritage. It is currently undergoing a £190,000 overhaul at the Strathspey Railway.

Two fictional 812 class engines appear as Donald and Douglas in The Railway Series

[edit] Dimensions

• LMS/BR Power classification, 3F
• Locomotive weight: 45 tons 14 cwt
• Boiler pressure, 180 psi
• Superheater, No
• Cylinders, 18½"x26"
• Driving wheel diameter, 5' 0"
• Tractive effort, 22,690 lb
• Valve gear, Stephenson

[edit] See also

• Locomotives of the London, Midland and Scottish Railway

[edit] External links

• The Caley 828 Overhaul Website
• Rail UK database 812 and 652 Classes