Scale 1:48. A fly drawing showing a partial plan of the flats, as fitted for the T class submarine Thule (1942). A Scott's Shipbuilding stamp, dated 7 March 1949 is also printed on the drawing. A Scott's Shipbuilding Principal Ship Overseer's stamp, dated 10 March 1949 is also printed on the plan. A Portsmouth Dockyard Manager of Constructive Department stamp, dated 15 October 1947 is also printed on the plan. This is the fly drawing to NPC3285 and NPC3286. The plan shows modifications made at Scott's Shipbuilding & Co in Greenock, in burnt sienna ink dated January 1949 during Thule's refit. This drawing was made by F. B. Smail [Draughtsman at Chatham Dockyard flourishing 1947].