Highland Railway Drummond 0-4-4T Class

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The Highland Railway Drummond 0-4-4T Class were designed by Peter Drummond in 1905.

Visually they had typically Drummond features although the external girders on the cab roof seem to be missing, however their small size means the massiveness of most Drummond designs is missing and they do not 'feel' Drummond.

They were quite small, obviously intended for working minor branch lines (possibly the lines that had appeared on the Black Isle and other places under Light Railway orders).

Photographs exist of No 46 (built 1906) hauling the Directors Saloon on an unidentified single-line stretch and No 25 working the Strathpeffer branch shortly after the Grouping.

It is not known just how many were built but two survived into British Railways days, the numbering of the survivors suggesting there was at least one more.

Both were still in service at August 1950 and allocated to Helmsdale. They may have been reclassified 1P by this date, but there is some doubt about this.

Dimensions:

Weight 35 tons 15 cwt

Boiler Pressure 150 lbf/in³

Cylinders 14 inch bore x 20 inch stroke

Driving wheel diameter 4 feet 6 inches

Starting Tractive effort 9,255 lbf

They were classified 0P by the LMS