[aerohead]

In the 1980s,Fruehauf teamed up with Peterbilt,and came up with a concept that got 10-mpg.It had all the goodies,including a boattailed trailer.Its never been produced.Truckers I know really consider weight an issue,as it cuts into payload potential.Aero mods will have to be very light with respect to size and effectiveness.Two points mentioned by members want to touch on.The single "floatation" wheel/tire combos offer 20% less rolling resistance than duals,in spite of increased frontal area.Blowouts suck though.Secondly,BMW and The Waggoner's Trucking Co.,of I believe S.Dakota,both run a fiberglass boattail on their trailers.The Waggoners get to run additional length,drivers don't know anything about any economy gains,perhaps the headquarters could respond to that.I've always been to busy to follow up on it.Left to me,I would completely re-design tractor-trailers,and I'm sure all the current builders would hate it completely.