The aerodynamic characteristics of eight very thick airfoils from tests in the variable density wind tunnel
This is a 1932 NACA technical report, issued by the National Advisory Committee for Aeronautics, presenting wind tunnel measurements of eight very thick airfoil sections for aircraft design engineers. The pictures are dense engineering charts plotting lift, drag, centre of pressure and lift-to-drag ratio against angle of attack, with airfoil profile outlines and small data tables, offering a designer little beyond the stark graph conventions of the period.
