The ornamental design for a powerunitattachable to a folded paper airplane, as shown and described.
FIG. 1 is a perspective view from below and one side of a power unit attachable to folded paper airplane showing my new design;
FIG. 2 is an perspective view of FIG. 1 taken from above and one side;
FIG. 3 is a bottom plan view drawn to a reduced scale with respect to FIGS. 1 and 2;
FIG. 4 is a side elevational view of FIG. 3;
FIG. 5 is a rear elevational view of FIG. 3;
FIG. 6 is front elevational view of FIG. 3;
FIG. 7 is a top plan view of FIG. 3;
FIG. 8 is a side elevational view thereof drawn to an enlarged scale with respect to FIGS. 3 through 7:
FIG. 9 is a side elevational view of the side opposite that shown in FIG. 8; and,
FIG. 10 is a perspective view drawn on an enlarged scale with respect to FIG. 1.
FIGS. 4 and 10 have been shown with a symbolic break in length wherein the appearance of any portion between the break lines forms no part of the claimed design.