The skirts are attached to the trailer ahead of its wheels, where they divert air to reduce the turbulence and drag that wastes fuel.20 feb 2019
Do trailer side skirts work?
Trailer skirts work in just the same way and can be added to either side of a truck. These help to reduce drag as well, but it's believed that they really don't kick in until a truck is traveling at least 60 miles per hour. Not only do these additions help with fuel efficacy, but they also improve driving safety.2 abr 2018
Do trailers Need side skirts?
Under the rule, all 53-foot box-type trailers (dry or refrigerated) must be equipped with Environmental Protection Agency SmartWay-approved side skirts or tail fairings that improve fuel economy from 4% to 5%, in addition to low-rolling-resistance tires (either standard or wide-base singles).26 ene 2016
How much fuel does a trailer tail save?
Trailer tails alone have demonstrated a fuel savings of 1%–5%, and in concert with trailer skirts, 9% improvement has been demonstrated. TrailerTail is a registered trademark of STEMCO.