Flying type head slider and disk drive apparatus with the flying tape head slider

A flying type head slider is provided having a rear surface faced to a magnetic disk for recording and/or reproducing signal on or from a magnetic disk. The flying type head slider includes a center rail formed on the rear surface extending from a front end to a back end of the slider, a magnetic head mounted at the back end of the center rail and a pair of two rails also formed on the rear surface respectively located at both sides of the center rail. The two rails respectively have an inner side wall facing to a side wall of the center rail and an outer side wall. The both side walls are tapered and not parallel relatively to the side wall of the center rail so that the magnetic head can be floated by flying force cause by air flow between the rails and a surface of rotating magnetic disk.