Aerodynamic braking device for a payload casing

An aerodynamic braking device for a casing of a payload intended to be ejected from a projectile on its trajectory, the braking device including at least one parachute connected to the casing by hangers, the parachute being housed in a sleeve, wherein

• the sleeve is wound around an axis of winding perpendicular to a longitudinal direction of the sleeve, and attached to a cylindrical housing that has an axis which is parallel to the axis of winding, the cylindrical housing in turn being secured to a base that closes off the projectile;
• the hangers are connected to the casing by means of an extension cable;
• the extension cable is wound around the axis of the cylindrical housing and attached thereto by at least three peripheral break lines, which are uniformly angularly distributed.