The tethered aircraft of the system is blown by wind to travel downwind at a controlled rate for maximal mechanical energy gathering from wind whose velocity fluxuates and gusts. A cycle of travel is completed when the aircraft is travelled upwind to the site of the beginning of downwind travel where...http://www.google.com/patents/US6254034?utm_source=gb-gplus-sharePatent US6254034 - Tethered aircraft system for gathering energy from wind
