Scale 1:48. Plan shows the sheer lines, longitudinal half breadth and body plan design drawing for the 298ft Minelaying submarine P.411, P.412 and P.413 (cancelled 1941). This plan bears the signature of Sir Stanley Vernon Goodall [Director of Naval Construction 1936-1944]. These submarines were ordered from Scott's Shipbuilding on 13 January 1941 and then cancelled in September 1941. A note on the plan states that the plan was downgraded to unclassified dated 20 February 1985.