Wind-tunnel Investigation of Horizontal Tails IV : Unswept Plan Form of Aspect Ratio 2 and a Two-dimensional Model
This is a NACA technical report from 1948 by NASA's Technical Reports Server, a wind-tunnel study of horizontal aircraft tail surfaces with unswept plan form, aspect ratio 2, for aerodynamics engineers. The pictures are plain grid-paper engineering plots of pressure, pitching-moment and lift coefficients against angle of attack, drawn as multi-curve line graphs in black ink with a few small trapezoid wing-plan diagrams, offering a designer only sparse, technical material for graph-style layouts.
