Dragonflies are one of flying insect. In fact their velocity can reach 40 km/jam if they are catching their prey,which like with velocity of 100 meters’s athlete in Olympiad. Beside it dragonflies also have manoeuvre which greater than helicopters, so can be avoided from bird’s chasing from in behind and hitted with car’s glass in foremost. So how dragonflies can fly and do manoeuvre.
Dragonfly’s skeleton made with chitin. This substane enough bend to are moved by muscles that are used for flying. That wings can fly forward and retreat or up and down. Dragonflies have two pair of wings, a couple in front of other couple. When two wings in forward are lifted, so two wings in behind move down. Two group of muscle in body that against move that wings. When one group of muscle pull a couple wings with wrinkle, the other open other wings directly. This is make dragonflies to silent in sky, fly retreat or change their way directly.
Then for manoeuvre, sight and hairs between head and body are needed. Dragonflies have 300000 microeyes, and every eyes face in different point, and hairs that sensitive with air. While body position change in the air, hairs and eyes stimulating. Neuron in hair root and eye send information to brain and to flying muscles about their position in the air. This is make that muscle regulate frequency and velocity of moving wing. So with it, dragonflies can do most difficult manoeuvre, and dragonflies never lost way.
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