VTOL-UAV active flow control aerodynamic analysis aeronautic component aircraft design autoclave blended wing-body aircraft building-block approach carbon nanotubes circulation control cold diaphragm forming composite materials composites structures computational fluid dynamics cost analysis crashworthiness design of advanced power systems ditching simulation dynamic force analysis electrical properties electrification flight testing fluid-structure interaction incompressible flow kinematic analysis kinematic synthesis life cycle analysis light sport aircraft low-curvature panels manufacturing