Unmanned aerial vehicle

FIG. 1 is a front left side perspective view of an unmanned aerial vehicle, showing my new design;

FIG. 2 is a rear right side perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a rear elevation view thereof;

FIG. 6 is a right side elevation view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken lines in the drawings illustrate portions of the unmanned aerial vehicle which form no part of the claimed design.