The integration of the propeller drive into the top of the wing aims at significant reduction of external noise. This is potentially associated with increased interior noise. Porous surfaces are used as a crucial mitigation measure, as they positively influence the flow noise and hence change the excitation of the structure-borne noise. The goal is the accurate modeling and calculation of the entry and the transmission of structure-borne sound, which results from the propellers' induced flow fields. These studies provide a necessary basis to allow an evaluation of the new configuration in reference to cabin noise in a later stage of the project.