Thus aircraft attitude is detected at the potentiometer 94 while the number of {HEAD ~ turns} of {TAIL ~ a spin} is detected by the potentiometer 96 
of
Thus aircraft attitude is detected at the potentiometer 94 while the number of { HEAD ~ turns } of { TAIL ~ a spin } is detected by the potentiometer 96
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH