RUDDER TRUNK FOR A WATERCRAFT, WATERCRAFT HAVING A RUDDER TRUNK, AND METHOD FOR PRODUCING A RUDDER TRUNK

摘要

To improve the hydrodynamic efficiency of a watercraft, the invention proposes a rudder trunk (100) for a watercraft (13), comprising a trunk tube (10), a receiving shaft (11) and a retainer (20) for retaining the trunk tube (10) in the receiving shaft (11), wherein: there is an intermediate space (19) between the trunk tube (10) and the receiving shaft (11) when the trunk tube (10) is situated in the receiving shaft (11); the retainer (20) comprises at least one holder element (21, 21a, 21b, 21c, 21d) and at least one holder partner (22, 22a, 22b, 22c, 22d); the at least one holder element (21, 21a, 21b, 21c, 21d) is situated on the trunk tube (10); the at least one holder partner (22, 22a, 22b, 22c, 22d) is situated on the receiving shaft (11); and the at least one holder element (21, 21a, 21b, 21c, 21d) and/or the at least one holder partner (22, 22a, 22b, 22c, 22d) protrudes into the intermediate space (19) when the trunk tube (10) is situated in the receiving shaft (11).