Angular velocity signal 302 passes to {HEAD ~ integrator} 303, which integrates the signal and produces {TAIL ~ angular position signal} 304 
Angular velocity signal 302 passes to { HEAD ~ integrator } 303 , which integrates the signal and produces { TAIL ~ angular position signal } 304
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH