The Scoop on the NACA Scoop
Francis Melvin Rogallo is now known for the eponymous double-conical hang-glider wings that he developed for NASA in the 1960s. Long before that, and before NASA even came into being, he worked for the sainted National Advisory Committee for Aeronautics-NACA-and in the late 1930s conducted a wind-tunnel study of inlet and outlet designs. From this […]