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