LMS Royal Scot Class 6170 British Legion

It was the prototype for, and is sometimes considered a member of, the Rebuilt Royal Scot Class but differed from those later rebuilds principally in having a unique type 2 boiler, rather than a type 2A boiler, the two not being interchangeable.

6170 was constructed in 1935 utilising the frames of the unsuccessful experimental high pressure compound locomotive 6399 Fury.

[1] The locomotive was named after the British Legion and given a number as part of the Royal Scot Class.

After that, the LMS rebuilt all 70 of the Royal Scots, between 1943 and 1955 and 18 of the Patriot Class between 1946 and 1949 with 2A boilers.

When built, 6170 was given the standard passenger livery of LMS crimson lake and was the only rebuilt Scot to wear that livery whilst in service, though 6100 Royal Scot carries it in preservation.