Improved Airplane Windshields to Provide Vision in Stormy Weather
This 1935 NASA technical report, published in the NACA report series, describes experiments on airplane windshield design to keep pilots able to see in stormy weather. Its pictures are photographs of airflow and a cockpit view alongside line diagrams of streamlines over an airfoil, showing how wind and rain behave around a canopy; a designer could draw on their clean, technical visual language of smoke-like streaks, flow lines, and hatched ground.
