Abstract
In flying insects, dragonfly has especially high flight performances which are high speed flying, hovering, turn sharp, and so on. However, dragonfly flight mechanisms has been incompletely understood. This report shows that measurement of pressure distribution over surface of test wings which mimic dragonfly's hind-wing shape with air pressure sensors. The pressure over the surface were measured through a hole which was into the wing with external air pressure sensors at outside of wind tunnel. The pressure over the surface were measured at total 7 positions and at an air velocity of 2.85 [m/S] (Re=3000) by changing the angle of attack. As the result of measurement, the pressure distribution over the surface make difference depending on 7 measurement positions.
