As long as curve C stays within the range of linearity, {TAIL ~ fine displacing element} 112 provides all adjustment in {HEAD ~ the Y direction}  
As long as curve C stays within the range of linearity , { TAIL ~ fine displacing element } 112 provides all adjustment in { HEAD ~ the Y direction }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH