Aerial system propulsion assembly and method of use

An aerial vehicle comprising:

• a housing;
• an outrunner motor comprising a stator mechanically coupled to the housing and a rotor rotationally coupled to the stator about a rotor axis, the rotor comprising:
• a body centered around and extending parallel the rotor axis;
• an outward protrusion from the body, the outward protrusion mechanically connected to the body and defined along an outer perimeter of a cross-section of the body, the cross-section normal the rotor axis;
• a radial member mechanically connected to the body and extending radially inward from the body;
• and
• a boss mechanically coupled to the body by the radial member, the boss centered around and extending parallel the rotor axis;
• and
• a propeller removably coupled to the rotor, the propeller comprising a hub and a plurality of propeller blades mechanically coupled to the hub, the propeller defining a central propeller axis, the hub comprising:
• an inner surface arranged around the body and defining a recess retaining the outward protrusion within the recess;
• a limit member contacting the radial member and rotationally retaining the propeller about the rotor axis with respect to the rotor;
• and
• a surface defining a hole centered around the central propeller axis, the boss arranged within the hole and retaining the central propeller axis substantially collinear with the rotor axis.