An aerodynamic control apparatus for an air vehicle improves various aerodynamic performance metrics by employing multiple spanwise flap segments that jointly form a continuous or a piecewise continuous trailing edge to minimize drag induced by lift or vortices. The parallel light may be generally achieved by directing an incident beam at the apex of a prism. The fowl retention system provides for the compression of fowl territories, thereby increasing the fowl population per unit area. A droop threshold is then determined for each location based on the corresponding acceptable voltage droop determined for the corresponding location. After the dissociation, the ion velocity remains almost unchanged, but the kinetic energy or momentum is partitioned amongst the fragments.