Kirsten-boeing Propeller
A 1926 technical report from the NASA Technical Reports Server, catalogued under the Kirsten-Boeing propeller, the record gives no named author or intended readership. The pictures are engineering line drawings: a propeller-blade geometry diagram, a circular vector plot, a fuselage-like body in plan and elevation, and a flow cross-section with thrust arrows, all in plain black linework on cream paper.
