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Mr. J. Ramsbottom
1858 — DX Goods
1863 — 4ft Shunter
1870 — Special Tank
Mr. F.W. Webb
1873 — 17in Coal Engine
1880 — 18in Goods
1881 — Special DX
1881 — Coal Tanks
1893 — ‘A’ class
1894 — Crane Tank
1896 — Dock Tank
1901 — ‘B’ class
1903 — 1400 Class
Mr. G. Whale
1904 — ‘C’ class
1904 — ‘E’ class
1906 — ‘D’ class
1906 — ‘F’ class
1906 — ‘G’ class
1912 — ‘G1’ class
1906 — 19in Express Goods
Mr. C.J. Bowen Cooke
1911 — 1185 class
Capt. H.P.M. Beames
1923 — 380 class
Ex GCR
1919 — ‘MM’ class
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Special Tank
Vital Statistics |
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| Official Name |
4ft 3in Six wheeled Coupled Special Tank |
| Nickname |
Special Tank |
| Water & Coal Storage |
Side tanks and Bunker |
| Water Capacity |
600 gallon |
| Coal Capacity |
1 ton 10 cwt |
| Wheel Arrangement |
0-6-0 |
| Driven Wheels |
Six 4ft 5½in wheels |
| Carrying Wheels |
none |
| Wheelbase |
7ft 3in + 8ft 3in |
| Total Wheelbase |
15ft 6in |
| Boiler |
4ft 0¾in diameter; 10ft 5¼in long |
| Boiler Pressure |
150 psi |
| Grate Area |
15 sq.ft. |
| Tubes |
186 |
| Total Heating Area |
1,069 sq.ft. |
| Cylinders |
Two inside 17in diameter; 24in stroke |
| Weight in full working order |
34 tons 10 cwt |
| Designer |
Mr. J. Ramsbottom |
| Number in Class |
278 |
| Lifetime |
1870—1959 |
Mr. Ramsbottom had twenty saddle-tanks  built for
shunting based on
the ‘DX’ design, to which Mr. Webb added a further 235,
fitting his own standard features in the same way as the
‘DX’ conversions. They were also widely used for station
pilot and empty carriage stock workings. Fuel supply was more
limited than the Coal Tanks , resulting in a lower range.
The first
‘Special Tanks’ had frames of iron but when Webb
introduced steel frames they were lighter yet stronger, so they could
be less deep. Most retained the sloping Ramsbottom smokebox front
until LMS days (after 1922), and unusually there was never any lining
on the back of the bunker . Originally built only with weather
boards ,
a few received cabs by the 1890’s and many more by
1912—16.
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