Skirt structure of hovercraft for reducing frictional resistance

摘要

The present invention relates to a hull structure comprising an air layer generated on the lower surface of a hull by air generated by a rotating force of a hovering fan disposed on a hull, floating the hull by floating air, A stern section skirt structure comprising: a tube arranged to form an air layer along a stern bottom surface of a hull; And a skirt arranged along the circumferential direction of the hull to form an air layer on the lower surface of the hull. According to the present invention, air moving along the skirt aft portion of the tube is curved so as to have a radius of curvature at the stern portion of the hull, so that air moving along the skirt aft portion moves along the outer circumferential surface of the tube, By suppressing or retarding the frictional contact, it is possible to prevent the speed reduction of the air flotation caused by the frictional resistance that occurs during traveling, thereby improving the air flotation efficiency.