The Prevention of the Ice Hazard on Airplanes
A 1930 NASA technical note on preventing ice buildup on airplanes, issued by the National Advisory Committee for Aeronautics for aviation engineers and researchers. Its plates show photographs of biplanes and aircraft parts beside line drawings of wings, struts, and mast sections with ice eliminator states marked as inflated or deflated, along with a compressed air system diagram. A designer could take the clean, labelled technical plate layout and the simple biplane line drawings as a model for diagrammatic engineering figures.
