Our goal for this studio was to create a flying object,and our group decided to create a flying manta ray ,a flying object which has the appearance and the movement of a manta ray. We would like to make it fly in the sky with the motion of flapping just like what a real manta does. After a long time brainstorming and giving up of several schemes, we designed the structure of our manta and used two propellers to make it fly. However, the result of the scheme to use two propeller to support it did not work well, our manta could not fly since the center of gravity is too keep forward. As the result, we change the strategy of using heavy motor to provide it energy,instead, we decide to make a manta kite.