The ornamental design for a fueltank for drone, as shown and described.
FIG. 1 is a perspective view of fuel tank for drone, showing my new design;
FIG. 2 is a front view of the fuel tank for drone of FIG. 1;
FIG. 3 is a rear view of the fuel tank for drone of FIG. 1;
FIG. 4 is a left view of the fuel tank of drone of FIG. 1;
FIG. 5 is a right view of the fuel tank of drone of FIG. 1;
FIG. 6 is top view of the fuel tank of drone of FIG. 1;
FIG. 7 is a bottom view of the fuel tank of drone of FIG. 1;
FIG. 8 is a perspective view of the fuel tank of drone of FIG. 1; and,
FIG. 9 is a reference view of the fuel tank for drone of FIG. 1, which merely shows the state in the use of the claimed designs and forms no part of the claimed designs.