Festiniog Railway 0-4-0TT

Ffestiniog Railway 0-4-0T+T
The Princess at Harbour station in near original condition, around 1871
Type and origin Power type Steam Builder George England and Co. Build date 1863-1867 Total produced 6
Specifications Configuration: ​  • Whyte 0-4-0T+T Gauge 1 ft 11+1⁄2 in (597 mm) Driver dia. 2 ft 0 in (0.61 m) Wheelbase 1-4, 4 ft 6 in (1.37 m) 5-6, 5 ft 0 in (1.52 m) Loco weight 1-4, 8 long tons (8.1 t) 5-6, 10 long tons (10 t) Water cap. 1-4, 237 imperial gallons 5-6, 418 imperial gallons Boiler pressure 1-4, 140 psi (970 kPa) 5-6, 150 psi (1,000 kPa) Cylinders Two, outside Cylinder size 1-4, 8 in × 12 in (203 mm × 305 mm) 5-6, 8.125 in × 12 in (206 mm × 305 mm) Valve gear Allan straight link valve gear
Career Operators Ffestiniog Railway, Welsh Highland Railway, Vale of Rheidol Railway

The Ffestiniog Railway 0-4-0T+T were six 0-4-0T+T steam locomotives built by George England and Co. for the Ffestiniog Railway between 1863 and 1867.^[1][2] The locomotives were built to two designs: the first four were originally side tank locomotives and are collectively known as the Small England class; the final two locomotives were delivered with saddle tanks and are known as the Large England class.

The designation "T+T" indicates a tender-tank locomotive, which is a tank locomotive with a tender. In these locomotives, water is carried in tanks on the locomotive while fuel (coal) is carried in the tender.