Highland Railway Clan Class
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Dimensions
They had Script error: No such module "convert". cylinders outside with outside Walschaerts valve gear, Script error: No such module "convert". driving wheels and a boiler pressured to Script error: No such module "convert".. Weight was Template:Long ton for the locomotive and Script error: No such module "convert". for the tender. Piston valve diameter is given as Script error: No such module "convert". (quite large for the period), but they had the conventional short lap, short travel valves. Bearing in mind that they probably spent a large part of their time slogging uphill or coasting down this was probably not too important. Total evaporative heating surface is given as Script error: No such module "convert"., plus Script error: No such module "convert". for the Robinson type superheater, and grate area as Script error: No such module "convert"..
Oil firing
Early in 1921 Clan Stewart was used for experiments with oil firing. This seems to have been successful, but was not applied to any other locomotives. Just when Clan Stewart reverted to coal operation does not seem to be recorded.
Transfer to LMS
The locomotives passed to the London, Midland and Scottish Railway (LMS) in 1923. The LMS classified them '4P'.
Transfer to BR
Two survived into British Railways (BR) hands in 1948, but only Clan Mackinnon received its BR number. Some of the Clan names were later reapplied to the BR Standard Class 6.
Numbering
| HR Number | Name | Built | LMS Number | BR number | Withdrawn | Notes |
|---|---|---|---|---|---|---|
| 49 | Clan Campbell | 1919 | 14762 | — | Template:Dts | |
| 51 | Clan Fraser | 1919 | 14763 | — | Template:Dts | |
| 52 | Clan Munro | 1919 | 14764 | 54764 | Template:Dts | BR number not applied |
| 53 | Clan Stewart | 1919 | 14765 | — | Template:Dts | |
| 54 | Clan Chattan | 1921 | 14766 | — | Template:Dts | |
| 55 | Clan Mackinnon | 1921 | 14767 | 54767 | Template:Dts | |
| 56 | Clan Mackenzie | 1921 | 14768 | — | Template:Dts | |
| 57 | Clan Cameron | 1921 | 14769 | — | Template:Dts |
References
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