Moveable flaps on sections of the lifting surface provide yaw control to allow the UAV to turn left or right. And flaps on the outside of the craft use the lift airflow to provide directional control, causing the craft to tilt and move in the direction of the tilt.
AESIR say their designs have inherent stability as a surveillance platform, thanks to a sustained hover capability, and can survive low speed impact with the ground, buildings and other fixed objects. They also have a large payload capacity when compared to similar sized fixed wing craft and have been designed to be flexible using "plug-and-play" payloads.
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