Abstract: A kite is described in which a wing of flexible material is disposed symmetrically about a central line; a wing spreader is structurally associated with the wing for providing equal and opposite extension forces operable at the central line; and an improved stabilizer is provided. The stabilizer has a keel depending from and structurally associated with the lower surface of the wing being attached thereto along one end of the central line, an apertured elevating cell through which air is drawn while kite is in flight with two side walls and upper and lower walls, the cell depending from and structurally associated with the lower surface of the wing along the other end of the central line, and a stabilizer strut for holding open the apertured elevating cell during flight being disposed between the keel and the lower wall of the apertured elevating cell.