METHOD OF SEPARABLY COUPLING A PROPULSION MODULE AND A CARRIAGE MODULE OF AN AIRCRAFT, AND MODULAR AIRCRAFT IMPLEMENTING SAME

According to one embodiment, a modular aircraft includes a propulsion module dedicated to flight, combining avionic equipment-wing structures assembly, flight deck, engines, tail unit-and a module dedicated to the carriage of passengers and/or goods. These modules include external cells extending longitudinally along a main axis and having tubular end parts of the same outline in the region of two disconnectable-coupling structures, one axial-coupling structure for keeping an end face of the propulsion module against an end face of the carriage module, and one radial-coupling structure for keeping an end face of the propulsion module against an end face of the carriage module. The wing structures assembly of the propulsion module includes two wing structures having opposite sweeps which are connected at the end and by a longitudinal connecting spar.