Abstract: A method of propulsion and attitude control in fluid environments is disclosed by examples of preferred embodiments of vehicles utilizing said methodology. The preferred embodiment of a vehicle utilizing said invention comprises at least one pair of left and right wing assemblies of an airfoil profile separated by a fuselage that combine to form a fluid dynamic body. Each wing assembly houses within its interior at least two longitudinally adjacent, counter-rotating drive-fans mounted on fixed approximately vertical axes that are capable of being powered by various means. Each wing assembly has operable interior and exterior venting means that control fluid flow to, from and between respective drive-fans. Each wing assembly has control surfaces at its trailing edge and is itself hinged to the fuselage with means to change the dihedral of the wing assembly. Each wing assembly has surfaces of designed permeability that create a dynamic laminar flow envelope about the vehicle.