This application pertains to {HEAD ~ a trailer} fairing for improving fuel economy in long distance haulage of {TAIL ~ trailers} 
This application pertains to { HEAD ~ a trailer } fairing for improving fuel economy in long distance haulage of { TAIL ~ trailers }
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL