wherein said left right, up down differential output signals and said left right and up down summing signals are recorded for computation of angle and magnitude of displacement of said projectile in relationship to {HEAD ~ the bore axis} of {TAIL ~ said gun tube} 
wherein said left right , up down differential output signals and said left right and up down summing signals are recorded for computation of angle and magnitude of displacement of said projectile in relationship to { HEAD ~ the bore axis } of { TAIL ~ said gun tube }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH 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 HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL