Natural flyers utilize unsteady mechanisms for generation of a fluid force. Wake capture and rapid pitch rotation were focused on unsteady mechanisms of a flapping wing in this study. The purpose of this study is to measure the fluid force of the unsteady mechanisms of the flapping wing in hovering. The length and a flapping frequency of the model were decided by using Reynolds number and non-dimensional frequency of Hawkmoth. The model wing was constructed of aluminum. Flapping motion was controlled by two servo motors. Result of experiment, lift generation by wake capture was confirmed in translational and turning motion. However, the lift generation by wake capture was not confirmed in sinusoidal motion. The lift generation by rapid pitch rotation was not confirmed in sinusoidal motion and translation and turning motion.
