Caledonian Railway 179 Class [SEP] service entry
Caledonian Railway 179 Class
The Caledonian Railway 179 Class (nicknamed "Oban bogie") was a class of 4-4-0 steam locomotives designed by George Brittain for the Caledonian Railway (CR) and introduced in 1882.
All ten were built by Dübs and Company in 1882; they came with 4-wheel tenders to reduce the overall length in order to fit on the turntables. They were rebuilt and reboilered between 1898 and 1901. They were placed on the duplicate list (by adding 1000 to their original fleet number
Caledonian Railway 179 and 184 Classes
The Caledonian Railway 179 Class and 184 Class were 4-6-0 mixed-traffic locomotives designed by John F. McIntosh and built in two batches in 1913-14 and 1914-15 respectively, at the Caledonian Railway's own St. Rollox Works. The differences between the two batches were minor, and they are often considered to be a single class. 
Overview.
They were the last new locomotives designed by McIntosh before his retirement. The type was essentially a superheated version of