A hinge mechanism coupled between {HEAD ~ the trailer} and the fairing allows {TAIL ~ pivotal displacement} of each fairing section between lowered and raised positions 
A hinge mechanism coupled between { HEAD ~ the trailer } and the fairing allows { TAIL ~ pivotal displacement } of each fairing section between lowered and raised positions
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH