The R-38 Catastrophe and the Mechanics of Rigid Airship Construction
A 1922 technical report on the R-38 rigid airship disaster and airship structural mechanics, issued by a NASA technical reports archive from a later scan of the original aeronautical document. Its single page is a set of engineering diagrams: a hull framing sketch, a cutaway of static force distribution, and graphs of aerodynamic forces, rudder-induced forces, and inertia forces. A designer could draw on its spare, labelled line-drawing style, with fine hatching, dotted loading lines, and small caption type set in a typewriter face on warm cream paper.
