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