DEVICE launch and return for aerodynamic profiled member and aerodynamically profiled elements

摘要

The invention relates to an aerodynamic profiled element for generating power by means of a tractive force, especially for driving watercraft. Said profiled element comprises a flexible top layer that extends in a transversal direction and a longitudinal direction, a flexible bottom layer which extends parallel to the top layer and is connected to the top layer by means of several webs that run in a downward direction of the profiled element, an air-filled interior space between the top and the bottom layer, at least one ventilation hole for ventilating the interior space, said at least one ventilation hole being disposed between two parallel forward edges of the top and bottom layer, several traction lines, a first end of which is fastened to the profiled element at spaced-apart points and a second end of which is connected to a traction rope for connecting the profiled element to a watercraft, and several reefing lines, a first end of which is attached to the layers and/or webs. Said reefing lines are embodied so as to reduce or increase the size of the profiled element by reefing or unreefing the top and bottom layer. The profiled element is extended by a rod element which runs in the longitudinal direction of the profiled element and is used for stabilizing the aerodynamic profile. Said rod element is fastened to the top and/or bottom layer and/or a web. At least one of the reefing lines is deflected on the rod element from a reefing line section that extends from the fastening point at the first end in the transversal direction of the profiled element of the top or bottom layer into a reefing line section extending in the longitudinal direction.