At Beddgelert in 2012
|Home Railway||Penrhyn Castle Museum|
|Original Railway||Penrhyn Quarry Rly.|
|Length||13 ft 10 in|
Hugh Napier is an 0-4-0ST Hunslet quarry tank (855 of 1904) which worked at Penrhyn Quarries, where he was part of the "Large Quarry" class. He weighs around 7½ tons. He is owned by the National Trust, whose aim is to have him publicly available, so he mostly resides as a guest at the FR.
Hugh Napier is named after the fourth Baron Penrhyn and has been part of the collection at Penrhyn Castle since 1966. The loco was the subject of a long-term effort to return him to working order. Before this work was completed, the major parts were displayed in the WHHR Museum for the "Hunslet: Generations" gala from 3-5 May 2008 to give visitors the chance to see this type of locomotive from a different angle. 
In July 2011, the locomotive was taken to Boston Lodge Works for restoration to working order in quarry condition, including a new boiler built at Boston Lodge, after which he became a roving ambassador for the National Trust, visiting other places around the UK but based at the F&WHR where he is used for light duties and on special occasions. Note that as he is in quarry condition, with quarry type lubrication, he has to be used carefully on longer runs. A common duty on the FR is giving footplate rides during special events or on summer Saturdays.
He visited the WHHR for the Gala in September 2013.
In January 2019 it was announced that the agreement with the National Trust to base Hugh Napier at the F&WHR had been extended by 10 years, including carrying out the required boiler overhaul.