New Method for Calculating Aircraft Equivalent Single Vulnerable Area

A new method is proposed for calculating the aircraft equivalent single vulnerable area using Monte-Carlo simulation technique. The method simulates the kill events of single vulnerable components and multiply vulnerable components or redundant components to ‘Model of Filling Boxes with Balls’, in which the area of each box is equal to the component's vulnerable area. By randomly and uniformly sampling the threat hit locations, the expected number of hits required to kill an aircraft can be given and the aircraft equivalent singly vulnerable area can be attained. Examples demonstrate the correctness and feasibility of the proposed method. Analysis show that the developed method overcomes two shortcomings of currently used methods. (1) It can calculate the equivalent single vulnerable area of aircraft with several sets of multiply vulnerable components, and (2) When the components of each multiple set have different vulnerable areas, the method also applies.