Scale 1:48. Plan shows the sections, as fitted for the T class submarines Turpin (1944) & Thermopylae (1945). A Chatham Dockyard Manager of Constructive Department stamp, bearing the signature of G. Hudson, who has signed on behalf of the Manager of Constructive Department, is printed on the drawing. The plan shows the sections at Frames 16, 21, 30, 41, 53 and 67 looking forward. The plan also shows the sections at Frames 80, 91, 103, 109, 119, 130 and 146 looking aft. Seperate section drawings for Thermopylae at Frames 41, 80 and 91 are also included on the plan.