The parachute canopy is coupled by several catch lines, gathered by line locks etc. to the pilot via several support straps. At least one rear catch line is secured in a knot. There are extra steering lines and possibly curving lines.During the forward thrust of the air filled canopy the distance between the knot and the rear section in flight direction of the canopy underside is automatically reduced, pref. by automatic pull of the brake and/or curving lines. The reduction may be provided by lateral deflection of a knot of a rear catch line or support strap.