When an object moves near sonic speed a shock wave will be formed and all disturbances and discontinuities remain localized in an area downstream of the shock wave. The impact of sonic boom is both of psychosomatic and structural damage. The sonic boom is unacceptable to the human ears due to the fact that it appears without warning and it produces structural damage. The sonic boom is unavoidable for an airplane which has lift, so the effort should be made to minimize the unacceptability degree on the part of the people.