Two practical methods for the calculation of the horizontal tail area necessary for a statically stable airplane
A 1929 NASA technical report, filed in the NASA Technical Reports Server, that sets out two practical calculation methods for sizing an aircraft's horizontal tail so the airplane stays statically stable. Its pictures are plain engineering line graphs with gridded axes and labelled curve families, so a designer could borrow their clean chart layout, sparse palette and tabular rhythm for diagrammatic or infographic work.
