In accordance with the preferred embodiment, the invention provides {HEAD ~ a fairing} which can be attached beneath {TAIL ~ the trailers} lower, outer longitudinal edge 
attached beneath
In accordance with the preferred embodiment , the invention provides { HEAD ~ a fairing } which can be attached beneath { TAIL ~ the trailers } lower , outer longitudinal edge
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH