Our automatic aircraft is tethered to a generator on the ground. It moves in a regular cross wind pattern at an altitude from 200 m up to 450 m. When the aircraft moves, it pulls the tether which drives the generator. Once the tether is reeled out to a predefined tether length of about 750 m, the aircraft automatically returns towards a lower altitude causing the tether to reel in. Then it ascends and repeats the process.
The aircraft lands and takes off automatically from a platform, by utilizing an array of sensors which provide the autopilot with critical information to perform the task safely.