The Dale class were a class of replenishment oilers taken up for service with the Royal Fleet Auxiliary, supporting the Royal Navy during the inter-war period.
Her Majesty's Naval Base, Devonport (HMNB Devonport), is the largest naval base in Western Europe and is the sole nuclear repair and refuelling facility for the Royal Navy.
An oil tanker, also known as a petroleum tanker, is a ship designed for the bulk transport of oil or its products.
The Royal Fleet Auxiliary (RFA) is a civilian-manned fleet owned by the United Kingdom's Ministry of Defence, whose purpose is to support the Royal Navy to maintain operations around the world.
The ton is a unit of measure.
Willebroek (old spelling: Willebroeck) is a municipality located in the Belgian province of Antwerp.