Abstract
Many birds increase by flapping the wing and the whole wing is flexibly moved this time. This movement produces a difference in the air resistance. The air is grasped enough, when the wing is moved in the downward direction. The air is released from the clearance of the wing, when the wing is moved upward. It is considered to apply this mechanism to the bird type wing of the wind turbine. In the paper, performance evaluation experiments under the higher wind velocity of a three sheet small type turbine generator system are discussed. A worthwhile knowledge is obtained on operation of the wind turbine.
