At 22 segundos you will see an aero fly into a green Orb and disappear. Here will learn that they communicate while in flight; because you witness the green Orb blinks in preparation for the incoming aero.
See the red triângulo that the aeros have placed in the cloud. Notice how the nuvem housing the triângulo is much darker than the surrounding clouds. See mais at www.youtube.com/aerostockians
