FIG. 1 is a front, right and bottom perspective view of a set of air cavities for hull surface of vessel, according to the present invention;
FIG. 2 is an enlarged front, right and bottom view of a section of FIG. 1;
FIG. 3 is an enlarged rear, left and bottom view of a section of FIG. 1;
FIG. 4 is an enlarged bottom view of a section of FIG. 1;
FIG. 5 is a front, right and bottom perspective view of a set of air cavities for hull surface of vessel, according to another embodiment of the present invention;
FIG. 6 is an enlarged front, right and bottom view of a section of FIG. 5;
FIG. 7 is an enlarged rear, left and bottom view of a section of FIG. 5; and,
FIG. 8 is an enlarged bottom view of a section of FIG. 5.
The broken lines represent the environment in which the article resides and forms no part of the claimed design. In a preferred embodiment, the air cavities are recessed below the hull surface of the vessel, such that the left side, right side, front, rear, and top surfaces of the air cavities are not seen in use and these views are therefore not shown.