On the steady-state deceleration modes of braking of a finned body in a medium

The problem of deceleration of a finned body in homogeneous resistive medium is studied. The body is affected only by the medium. The plumage of the body consists of a single blade. It is shown that a circular kind trajectory of deceleration with “somersaults” is possible for blade profiles with both low and high aerodynamic quality. For airfoils with high aerodynamic quality, additional circular kind regimes of deceleration are possible that are in the style of a parachute.