Dean's Larger Tank Engines
This is something of a followup from discussion in another Blog entry, https://www.rmweb.co.uk/community/index.php?/blogs/entry/24891-gwr-no-34-1890/ and is also relevant to this one. https://www.rmweb.co.uk/community/index.php?/blogs/entry/24922-gwr-3521-0-4-2t-and-0-4-4t/. As I said, I'm beginning to further appreciate what a weird and largely unsuccessful bunch Dean's larger tank engines were, and what a contrast in style they were from the smaller 6 wheeled engines, conventional, successful and very long lived, and heavily based on Armstrong originals. So this is a sort of brain dump/request for comments.
What struck me in the previous thread is that there does seem to be something of a common style to the larger Dean tanks, quite separate to the Armstrong derived Metros and Metro derivatives, very conventional and with six or eight reasonably evenly spaced wheels.
It seems to me that I can categorise the larger ones as:
1880, No 1, 4-4-0T. Rebuilt 1882 as a more conventional 2-4-0 and in that form survived until 1924.
1881, No 9, 4-2-4T. Never went into service, and has attracted a good amount of writing and speculation.
1885, 3501 Class 2-4-0T. Broad gauge convertible versions of the Stella Tank.
1885, 3511 Class 2-4-0T. 'Stella tank'. A tank engine version of the Stella 2-4-0 and part of a group of closely related locomotives that also included the 1661 Class 0-6-0ST and 2361 class 0-6-0.
1886, No 13, 2-4-2WT. Rebuilt 1897 as a 4-4-0ST and in that form survived until1926.
1887, 3521 Class, 0-4-2T. Converted to 0-4-4T 1891/2 and rebuilt as 4-4-0 tender engines from 1899.
1888, 3541 Class, 0-4-2ST. Broad Gauge half sisters of the 3521s, converted to 0-4-4 1890/1, narrow gauge 1891/2 and rebuilt as 4-4-0 tender engines from 1899.
1890, 34 Class, 0-4-2ST, converted to 0-4-4ST in 1895 and as such ran until 1906/8.
1891, 1345 Class. 0-4-4S/WT. Rebuilt from ex Monmouthshire Railway 0-6-0ST absorbed in 1880. Withdrawn between 1908 and 1913.
1898, No 1490. 4-4-0PT sold 1907.
I don't think I'll consider the Stella family much in this exercise, it seems to me that they are a separate line of development. What I'm particularly interested in for this is the Swindon built 0-4-2/0-4-4T locomotives which seem to me to embody a common style.
Edited by JimC
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