Patent ID: 8746619
Filing Date: 2014-06-10
Classification: B64C

Abstract:
1. An aircraft tail capable of improving anti-bird strike performance of aircraft, the aircraft tail comprising: a tail leading edge skin, a small front beam fixed to the tail leading edge skin, a wing rib connected to the small front beam, a big front beam connected to the wing rib and a leading edge cabin skin connected to the small front beam, the wing rib and the big front beam, wherein, the tail further comprises a leading edge reinforcement, which is located inside a tail leading edge defined by the tail leading edge skin, and which is spanwisely distributed between 0-100% of a wing span of the tail and chordwisely distributed between 0-30% of the tail, the leading edge reinforcement spanwisely fixed in sections between respective spans formed by the wing rib inside the tail leading edge along the tail of the aircraft; wherein the leading edge reinforcement has a shape of an isosceles triangle having first and second legs of equal length, wherein the degrees of an apex angle of the leading edge reinforcement are the same as the degrees of an apex angle of the tail leading edge skin, and wherein the apex angle of the tail leading edge is a transition arc having a radius of 5 mm; wherein the leading edge reinforcement is fixedly connected with the small front beam through a leading edge reinforcement fixed surface; wherein the big front beam is located at a rear portion of the aircraft tail.