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The central cross easily pulls right out of the foam shell.

The two sets of wires in the central cross are responsible for controlling and providing power to the four motors.

The tubes of the cross are made of carbon fiber to save weight and provide plenty of structural rigidity.

The other plastic pieces are made of polyamide 6,6 (PA66), more commonly known as nylon.

Yes, there are different variations of nylon, but it's not necessary to explain the differences between condensation and open-ring polymerization right now. Let's just get back to tearing down the AR.Drone.