Calculated and Measured Pressure Distributions over the Midspan Section of the NACA 4412 Airfoil
This NASA technical report from 1937 presents calculated and measured pressure distributions over the NACA 4412 airfoil, written for aeronautical engineers and researchers. Its pictures show pressure-distribution diagrams drawn as arrows over airfoil profiles at several angles of attack, plus a photograph of the test model mounted in the wind tunnel, useful to a designer for visualising airflow and lift around a wing section.

