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The 5- by 7-meter Wind Tunnel of the DVL (1936)
NASA Technical Reports Server (NTRS) · leaf 11
Figs. 1,2,3. N.A.C.A. Technical Memorandum No. 738 Figure 3.- Cross section of tunnel at level of tunnel axis.NASA Technical Reports Server (NTRS)
Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.
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