At present, there are transport and tourism development, advancement, and fast. At the same time, technological advances had increased as well, and tend to develop more. Various aircraft, including the plane is an important factor, especially in transportation, and as factors that can further development is the extent to which the appropriate end of use. The plane is currently being used to transport a wide range of. Transport. The military and to study the structure and efficiency of aviation is experiencing the emergence of noise from the rotation of the rotor aircraft project group which will study and solve the problem by developing a rotor to reduce noise of rotation of the rotor causing the least sound. That group has already project that this project will be implemented is useful. Moreover, this project works to reduce noise pollution problems as well. Group project to design and shape characteristics of rotor adopt sound intensity level measuring experiment of rotation of a rotor with a sound intensity level while flying. To guide the development of propeller aircraft noise in the future.
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