Name:  Earl of Merioneth
Classification:  0-4-4-0T
Builder:  Boston Lodge Works
Built:  1979
 
The first double Fairlie built by the restored Ffestiniog Railway, and the only one of its kind to deviate from the classic design with the cuboid side tanks. Converted to coal firing in 2006 and currently in regular service. No. 11 works plates exist for the loco but it has never carried them in service.