Trailer tail

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Trailer tail at the rear of a semi-trailer in 2013

A trailer tail, boat tail, or rear fairing is an aerodynamic device intended to improve the fuel economy of semi-trailer trucks. It comprises a set of panels, usually collapsible, which fold out from the rear of the trailer, creating a tapered shape that reduces drag from the low-pressure wake created behind the trailer. Trailer tails are one form of aerodynamic technology verified by the U.S. Environmental Protection Agency's SmartWay Transport Partnership.[1] Trailer tails alone have demonstrated a fuel savings of 1%–5%, and in concert with trailer skirts, 9% improvement has been demonstrated.[2]

TrailerTail is a registered trademark of STEMCO.[3][4]

SuperTruck project[edit]

At least one model of trailer tail, trade named TrailerTail, is part of Navistar's SuperTruck project,[5] which will use $37 million of US Department of Energy grants to build next generation trucks and tractor trailers.

References[edit]

  1. ^ "Learn About SmartWay Verified Aerodynamic Devices". U.S. Environmental Protection Agency. Retrieved 29 June 2016.
  2. ^ "SmartWay Verified List of Aerodynamic Devices". U.S. Environmental Protection Agency. Retrieved 29 June 2016.
  3. ^ "TrailerTail® Fuel Savings Technology". stemco.com. Retrieved 2018-10-15.
  4. ^ U.S. Trademark 77,152,970
  5. ^ Navistar SuperTruck Archived July 17, 2011, at the Wayback Machine