A method of producing a lifting force and a horizontal force by
aerodynamic surfaces includes the steps of moving aerodynamic surfaces
along a circumference and providing their oscillations; rotating each of
the aerodynamic surfaces synchronously with the movement along the
circumference, in a direction which is opposite to it, relative to an
axis of rotation which is parallel to an axis of the movement along the
circumference, with an angular speed which is equal to an angular speed
of the movement along the circumference, and performing oscillations of
each of the aerodynamic surfaces synchronously with a rotation relative
to mutually perpendicular axes located correspondingly in two mutually
perpendicular planes which intersect along an axis of rotation of the
aerodynamic surfaces, wherein one of them passes through an axis of the
movement along the circumference and the axis of rotation.