Thus, the mechanism does not require {HEAD ~ any decreased motor volume} in the missile or {TAIL ~ booster} 
in
Thus , the mechanism does not require { HEAD ~ any decreased motor volume } in the missile or { TAIL ~ booster }
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH TAIL TAIL TAIL TAIL TAIL