Patent ID: 8387915

Claim:
A skid rail fixed to a bottom surface of an aircraft fuselage comprising (i) a base member comprising a long board fixed in a longitudinal direction to a bottom surface of said aircraft fuselage, and pluralities of bosses integrally projecting from an outer surface of said long board with longitudinal intervals, (ii) pluralities of cores bonded to said long board between said bosses to form a rail-shaped, integral structure, and (iii) a skin covering said bosses and said cores, said base member and said skin being formed by a first fiber-reinforced plastic having fabrics of glass fibers and/or carbon fibers, and said cores being formed by a second fiber-reinforced plastic having fabrics of fibers having higher wear resistance than that of fibers in said first fiber-reinforced plastic, wherein the long board has width W′ which varies along the length thereof, and at least one of the plurality of cores has a width W and is fixed to a position along the length of the long board where the width W is equal to the width W′ of the long board.