An interference-check-result sorting unit sorts the result of the interference check on an entire 3D model in a 3D-model storagedisplay unit that is implemented by an overall interference check unit of a model-design verification system into the interference information related to male-screw models and the interference information related to other models. The hull has parallel spaced fore-and-aft pontoons centrally of its length between elevated transverse bridges at the ends of the hull. The line-oriented text document listens for a change in the content of the stream-oriented text document and vice versa. The communication link interface is configured to attach a communication link to an external antenna.