Winston at Palace Station, Blenheim Park Railway, Woodstock. Winston resembles a steam locomotive, but is an 0-6-0 diesel hydraulic with a steam locomotive outline. Built in 2013, Winston is the main locomotive in use on the 381mm (15 inch) gauge Blenheim Park Railway miniature railway in the grounds of Blenheim Palace. The track extends for about 900 metres from Palace Station (here) to the Pleasure Gardens.