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Fuel-saving flaps

Published Wednesday, February 11, 2009

ORLANDO. At first glance, the Andersen Eco-Flaps don’t look like trailer wheel flaps at all. A lightweight piece perforated with slats, they look more like large air vent covers. Yet these simple plastic constructions are touted to improve tractor-trailer fuel economy anywhere from 0.2 miles per gallon up towards 0.4 to 0.5 miles per gallon, according to the inventor and company president Barry Andersen. In 2006, the Transportation Research Center in Ohio conduct an SAEJ1321 fuel test on the product and found the flap improved tractor-trailer fuel economy by 1.7%. Originally developed to reduce the water spray kicked ...

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