Tandem-wing aircraft system with shrouded propeller

A tandem wing unmanned aircraft system (UAS), comprising:

• a fuselage extending longitudinally from a nose end to a tail end, the nose end including a nose compartment enclosed by at least one transparent exterior panel, the fuselage enclosing at least one of a control system of the UAS and a power source of the UAS;
• at least one wing removably coupled to the fuselage by at least one frangible spar element, the at least one wing associated with a wingspan and having a trailing edge including at least one control surface couplable to the control system, the at least one wing extending from a wing root at a dihedral angle to terminate in a wingtip, the at least one wing comprising:
• at least one forward wing coupled to the fuselage in at least one of a shoulder-wing and a high-wing configuration, the at least one forward wing swept forward at a first sweep angle and including at least a port forward wing and a starboard forward wing;
• and
• at least one aft wing coupled to the fuselage in a low-wing configuration, the at least one aft wing swept aft at a second sweep angle and including at least a port aft wing and a starboard aft wing;
• a cargo compartment ventrally positioned in the fuselage between the at least one forward wing and the at least one aft wing, the cargo compartment enclosed by at least one ventral exterior panel including at least one ventral opening;
• and
• a propeller assembly dorsally and pivotably mounted to the tail end and coupled to the control system, the propeller assembly configured to pivot through a first range around a first rotational axis parallel to a yaw axis of the UAS, the propeller assembly comprising:
• a longitudinal shaft defining a shaft axis canted downward at a shaft angle relative to a roll axis of the UAS;
• a plurality of propeller blades extending radially from the longitudinal shaft, the plurality of propeller blades coupled to provide thrust by rotating around the shaft axis;
• and
• an annular ducted housing surrounding the longitudinal shaft and the plurality of propeller blades and extending aft of the plurality of propeller blades.