SeaCat is a vehicle of moderate size and weight. Its design is modular and scalable and can thus be adapted to a variety of missions and applications. Modularity means that the SeaCat consists of several sections with a specific purpose each. The head section can be modified and thus allows for a multitude of sensor options, realised by different payloads. Several payloads can be preconfigured and integrated into specific payload heads according to the user’s needs. The so-called SwapHead concept makes it possible to exchange these heads in the field without special tools.