NACA-TN-2294

Abstract

The types of wings considered in this paper are sketched in figure 1. In the following analysis and in the figures the wing plan form with sweptback trailing edge (fig. 1(a)) is generally considered and sketched as the typical wing, but the results are equally valid for the wing plan form with the swept-forward trailing edge (fig. 1(b)). The orientation of the wing with respect to a body system of coordinate axes used in the analysis is indicated in figure 2(a). The surface velocity potentials, the basic pressure distribution, and the stability derivatives are derived with respect to this system. Figure 2(b) shows the wing oriented with respect to the stability axes system with the origin of the system at the arbitrary point (x, 0, 0) rearward of the apex of the apex of the wing. The transformation formulas that allow the determination of the derivatives with respect to the stability system once they are known with respect to the body axes system are presented in table 1.