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Shape and strength of seaplane under-structures with special regard to seaworthiness (1921)
NASA Technical Reports Server (NTRS) · leaf 12
Front ' Rear truss truss Fig. 3 (Seaplanes A and B). … Front Rear Fig. 4 (Seaplane G). i Front Fig. 5 (Seaplane D).NASA Technical Reports Server (NTRS)
Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.
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