Y CARIAD is the work of Francis Dadd, Norman’s son. Norman retired from the business in 1885.
Francis built a more modern machine than PRINCESS, which dealt with the issues present in the older machine. An overall roof for greater crew protection, a much-simplified boiler and Marshall’s valve gear are obvious changes.
The engine also boasts a well-tank, offering a lower centre of gravity, while giving a rigid box frame and good access to the motion from both above and below the footplate.

Y CARIAD arrived at Door in 1888 and immediately PRINCESS was returned to Dadd’s for overhaul.
It was subsequently overhauled by Robson’s of Bray in 1912, & 1936.

When the Door Valley closed in 1967, Rose was offered all the stock. Y CARIAD was in a reasonable condition and was returned to steam at Boot Lane in 1970.

Specifications –
0-4-0 WT
Cylinders – 7″ x 10″
Driving wheels – 21″ (dia)
Boiler pressure – 160 psi
Tractive effort – 2800lbs (@75%bp)

Operational status –
undergoing overhaul

Y CARIAD – CAD render