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