The Bell Boeing V-22 Osprey is the tiltrotor aircraft. In 2012, U.S. Marine deployed Osprey at the U.S. Marine Corps' Futenma Air Station in Okinawa prefecture. But, Okinawa residents have opposed the move, citing safety fears. I think Osprey is the ideal aircraft blending the best of helicopters and airplanes, and it will be available for purposes other than military in a near future.

This paper attempts to show that Japan should take note about the danger of unmanned aerial vehicle rather than Osprey. First, I explain the position of Osprey in the classification of aircraft and the history of aircraft. Next, I discuss the motivation of rapid development of aircrafts is war. Then, I describe the special features and manipulation of Osprey. Finally, I discuss the safety fears by the deployment of Osprey.