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Originally Posted by aerohead
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A Freightliner FLD - that is step back in time! (Produced from 1987 - 2010) Freightliner's first "aerodynamic" truck build before Freightliner had their own wind tunnel.
Which is part of the problem. Plenty of things that "look" like they should be aerodynamic aren't actually. For example you may think extending side fairings on a truck back to the rear wheels would be better than a short fairing. However, that isn't always the case. The early full wheel to wheel fairing on a Cascadia is less aerodynamic than the later model short fairing that stops even with the cab extenders.