Measurements of Flow in the Boundary Layer of a 1/40-Scale Model of the U. S. Airship "Akron."
This is a 1933 NASA technical report, issued through the NASA Technical Reports Server, measuring airflow in the boundary layer around a 1/40-scale model of the U.S. airship Akron, written for aeronautical engineers. The pictures are plain engineering graphs of velocity against distance, a hot-wire probe apparatus, and the model suspended in a wind tunnel, offering a designer a stark record of technical diagrams in grid-paper style and monochrome photographs.
