Abstract: Aircraft with rotary wings, characterized in that it comprises a nacelle (1) surrounding the user who seats on a seat (9) slidingly arranged in the medial plane of said nacelle, substantially in the normal displacement direction of flight of the aircraft, two parallel crowns (40-41) carried by the nacelle and imparted with identical rotational motions but in inverted directions about a common axis, extending substantially at the center of the nacelle, perpendicularly to the plane of said crowns, each of the crowns supporting at least one pair of blades (48-49, 50-51) or wings diametrically opposite and arranged in the prolongation of each other, drive means (19-37) for driving the crowns about the nacelle and means (66-67) for changing in each pair of blades the pitch thereof in an equal but opposite way for each of them.