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| | Bulleid 350hp Shunter/Class 12 |
 | | Class 08, Class 09 and Class 11 shunters (and also those constructed by the GWR), had larger 4ft 6in diameter "Bulleid-Firth Brown" type wheels, (the same size as used by Maunsell on his 1937 diesel shunters) as opposed to the 4ft 2in, normally spoked variety used on the others. |
 | | Bulleid's shunters had a central dual controlled desk, as in current practice, but in order to start the engine oil had first to be pumped up to engage the pressure switch. |
 | | A more powerful, 500hp, diesel mechanical shunter was developed in 1950 which could run at the higher line speed of 45mph, though this proved to be a "Jack of all trades, master of none" and did not progress beyond a single prototype. |
| www.semg.org.uk /diesel/class12.html (720 words) |
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