The turbine is tied to a blimp that is purposely located in its wind shade and keeps it airborne during {HEAD ~ periods} of {TAIL ~ light} or no wind 
of
The turbine is tied to a blimp that is purposely located in its wind shade and keeps it airborne during { HEAD ~ periods } of { TAIL ~ light } or no wind
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH