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Tank Tests to Show the Effect Rivet Heads on the Water Performance of a Seaplane-Float (1938)
NASA Technical Reports Server (NTRS) · leaf 20
N.A.C.A. Technical Note No. 657 Figs. 11,12,13 40 12 16 20 24 28 32 36 40 44 48 52 56 < Speed, f.p.s.NASA Technical Reports Server (NTRS)
Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.
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