Method for calculating wing loading during maneuvering flight along a three-dimensional curved path

The aerodynamic forces due to the nonsteady motion of a lifting surface along a three-dimensional path are analyzed. For this purpose, available steady-state calculation methods, based on potential theory, were modified by retaining the nonsteady terms in the governing equations. The surface motion is limited to such cases where the linear analysis can be applied. As an example, the time-dependent forces and moments of a slender wing in various nonsteady motions were studied.