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