Lattice arrangements for rapid convergence Vortex-Lattice Utilization Vortex-Lattice Utilization
A NASA technical report on vortex-lattice aerodynamic methods, catalogued under a 1926 date and credited to the NASA Technical Reports Server, with no clear named audience beyond engineers. The pictures are plain line diagrams: one chart of a spanwise load curve falling from a plateau to zero across a 0 to 1.0 axis, and two sketches of a swept trapezoidal lattice of dashed chordwise and spanwise lines, useful to a designer as a clean technical grid and stepped-panel vocabulary.
