It is another related objective to attain this general objective with {HEAD ~ substantial weight reductions} for {TAIL ~ the drayable chassis} 
It is another related objective to attain this general objective with { HEAD ~ substantial weight reductions } for { TAIL ~ the drayable chassis }
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