Inside Out Library · ExploreInvestigation of Boundary Layers on an Airplane Wing in Free Flight (1934)NASA Technical Reports Server (NTRS) · leaf 12Figs. 4,5 N.A.C.A. Technical Memorandum No.751 Figure 5.-Velooity profiles, test series I.NASA Technical Reports Server (NTRS)Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.More pictures from Investigation of Boundary Layers on an Airplane Wing in Free FlightMore like this
