Aviation, Industrial Aviation and Aero Digest were all aimed at professionals in the aircraft industry, primarily at designers and management, so they tended to carry technical articles of interest to design engineers.
Some of those articles are collected here, along with some other informative materials.
- "Designing Propellers to Meet Performance Requirements" [ HTML ] outlines the key design criteria involved in selecting a propeller (or propeller-engine combination) for a new design.
- "Effects of Compressibility" [ HTML ] explains the compressibility phenomenon.
- "Analysis of Magnesium Applications In German Aircraft and Equipment" [ HTML ] describes in considerable detail the use of magnesium castings and forgings in German aircraft engines.
- "Airpower has a heart" [ HTML ] describes some of the operations of NACA labs.