Inside Out Library · ExploreThe constructional design of metal flying-boat hulls. Part I (1928)NASA Technical Reports Server (NTRS) · leaf 28! N.A.C.A. Technical Memorandum No.487 Figs. 1 to II. 6507 A S. I INASA Technical Reports Server (NTRS)Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.More pictures from The constructional design of metal flying-boat hulls. Part IMore like this
