Stackable swarming drones having a mating recess structure

A stackable unmanned aerial vehicle, comprising:

• a fuselage comprising a first end and a second end;
• a mating structure forming a mating recess on a first side of the fuselage, the mating recess having an opening at the first side of the fuselage for receiving a mating projection from a further stacking unmanned aerial vehicle;
• wherein the mating recess is configured to taper gradually from the first end to the second end such that cross-sectional area of the first end is greater than cross-sectional area of the second end and the gradual taper simultaneously forms a mating projection having a leading end with a cross-sectional area that is narrower than a base end having a larger cross-sectional area,
• wherein the fuselage further comprises a connection element extending outward from the fuselage;
• and
• wherein the mating recess has a depth greater than a vertical distance between the connection element and the leading end of the mating projection.