Built by N.A. Dadd & Son for the short-lived Door Valley Tramway in 1875.
With the closure of Door in 1885, Dadd managed to snatch PRINCESS from the clutches of the railways’ creditors and moved it (and WINIFRED) to his Maidenhead workshops.
When Dadd was awarded the contract to build the Candlebridge Tramway in 1886, he took PRINCESS (and WINIFRED) with him. the gauge of the locomotives determining the gauge of the railway.
When the railway opened in April 1888, PRINCESS hauled the inaugural train.
PRINCESS is unusual in appearance with a short “T” boiler and graceful curves, while behind her skirts she is a remarkably simple machine, with outside frames and a peculiar early version of Marshall valve gear.
The original boiler design has been maintained, albeit at a slightly reduced operating pressure and offers a unique glimpse at early Victorian engineering.
PRINCESS carries the number “1”, being the only locomotive built by Dadd and his son, and is generally considered to be Candlebridge number “1” as she is two years older than WINIFRED.
Cylinders – 6″ x 9″
Driving wheels – 21″ (dia)
Boiler pressure – 140 psi
Tractive effort – 1620lbs (@75%bp)
Operational status –