Moel Tryfan (locomotive)

Moel Tryfan was a narrow gauge steam locomotive built for use on the North Wales Narrow Gauge Railways (NWNGRs) in 1875. The locomotive was an 0-6-4 T single Fairlie locomotive built by the Vulcan Foundry near Manchester. It spent its entire working life on the NWNGRs and its successors the Welsh Highland Railway (WHR) and the Ffestiniog Railway (FfR).

The North Wales Narrow Gauge Railways was an ambitious scheme to lay 1 ft 11 ¹⁄₂ in (597 mm) gauge railways through many of the valleys of north Wales. Only one of the proposed lines was built, connecting Dinas Junction, near Caernarfon with Rhyd Ddu, north west of Beddgelert. Two identical locomotives were ordered from the Vulcan Foundry to work the new railway. They were built to Fairlie's patent for articulated locomotives and were designed by George Percival Spooner, son of Charles Eaton Spooner, the manager of the nearby FfR.

The locomotives were the first 0-6-4 Ts in the British Isles. They were named Moel Tryfan and Snowdon Ranger. Moel Tryfan was named after the local mountain where the slate quarries that provided most of the railway's commerce were located. The locomotives entered service in 1875. In 1903, Moel Tryfan underwent a major overhaul (with new boilers and fireboxes) at Davies and Metcalfe in Manchester, a year after Snowdon Ranger. Despite these repairs, one of these two locomotives was dilapidated by 1908. On 19 March J C Russell, the Receiver and Manager, applied to the Chancery Court for authority to spend £1,300 to purchase a new locomotive (Gowrie delivered later that year). Russell's affidavit explained that it was "in place of one of the original locomotives which has been running since the Line was opened in August 1877. In spite of constant renewals and repairs one of the old Engines is quite worn out and the Engineer of the Company (Mr Aitchison) has informed me it is impossible to renew it except by rebuilding which is practically the same as acquiring a new Engine and that it would be less efficient, less powerful, and less economical in working than the proposed new Engine." Snowdon Ranger was photographed at Dinas on 23 June 1909 and new piston rings were ordered for the engine in September 1910 and Moel Tryfan in February 1911. In February 1914 GC Aitchison (who had taken over as Receiver and Manager following Russell's death in 1912) swore an affidavit saying there were three engines, two of which (Moel Tryfan and Russell) had "collapsed", needing money spent on them. The third engine he referred to was presumably Gowrie, which implies that Snowdon Ranger had gone (or at least been taken out of service). It has been recorded that the best components of both locomotives were amalgamated into a single maintainable unit (although there is no evidence that a ten-year-old boiler was retained as a spare). The frames from Snowdon Ranger (which were renewed by Hunslet in 1908) are said to have been placed under the superstructure of Moel Tryfan, with the combined locomotive taking the latter name. This evidence suggests a date for the demise of Snowdon Ranger of around 1912 or 1913.

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