In {TAIL ~ a disclosed embodiment}, {HEAD ~ the temperature} in the region of the mandrel is measured, and the moving of the receptor fins is in accordance with the measured temperature 
In { TAIL ~ a disclosed embodiment } , { HEAD ~ the temperature } in the region of the mandrel is measured , and the moving of the receptor fins is in accordance with the measured temperature
REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH