The maps shown in the video come from a 1909 Royal Navy survey of port and dockyard infrastructure. Warships were becoming larger, and the Admiralty needed to know which facilities could receive them and which sites could be enlarged. The survey therefore recorded dry docks, basins, locks, cranes, and proposed extensions rather than merely marking shipyards by name. Nearby coal and iron supplies influenced where shipbuilding developed, while large fitting-out basins provided room to complete newly launched hulls. Taken together, the plans document institutional preparation for the dreadnought era and its growing infrastructure demands.
Chapter · 29:40-32:56
The 1909 dockyard survey confronts growing warships
Royal Navy maps measured docks, basins, and expansion space because new warships were outgrowing existing facilities.