Great Western Castle Class 4-6-0 Locomotives, 1923-1959

The Great Western Castles were one of the most successful locomotive designs of the twentieth century in terms of both performance and efficiency. Designed by Charles Collett in 1923, based on the 1907 Churchward 'Star' class, 155 were constructed almost continuously, apart from the war years, between 1923 and 1950, in addition to fifteen rebuilt 'Stars' and one rebuilt from the Great Bear pacific. Many were modernised with increased superheat and double-chimneys in the late 1950s and the c...