Abstract:In recent years, the demand for hybrid aquatic–aerial vehicles(HAAV) in civil and military fields has grown rapidly, and its key technologies include trans-media power technology, watertight technology, overall configuration design, cross-media control, etc. In view of the variant technologies that affect the overall scheme, the possible variant technologies of fixed-wing transmedia vehicles are classified from a theoretical point of view, and the variant technologies used in the existing vehicle design schemes and exploration practices at home and abroad are studied and summarized. On this basis, the technical prospect of the hybrid aquatic–aerial vehicles variant is proposed, which provides a certain design basis for the overall scheme of the subsequent hybrid aquatic–aerial vehicles.