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The NACA variable-density wind tunnel (1933)
NASA Technical Reports Server (NTRS) · leaf 3
308 REPORT NATIONAL ADVISORY COMMITTEE FOR AERONAUTICS … FiatmE E.—Diagrammatic drawing of the balance of the variable-density wind tunnelNASA Technical Reports Server (NTRS)
Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.
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