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TrailerTails® ATDynamics TrailerTails® are patented tractor-trailer rear drag reduction devices which provide fuel savings of 5 to 6% for tractor-trailers traveling at highway speeds. TrailerTails® are designed to meet the usability and durability needs of a modern fleet operation while providing thousands of dollars of fuel savings per trailer per year. TrailerTail® fuel savings have been well documented in SAE J1321 third party tests and are components of EPA SmartWay certified trailers. They are currently available as retrofits to any existing swing-door trailer application or as factory installed options for select OEM trailers.
TrailerTails® do not inhibit the use of a trailer's rear doors, require minimal person-movements for opening and closing and meet the Department of Transportation length regulations for aerodynamic extensions. (TrailerTails® open in 6 seconds and close in 8 seconds.) Drivers think that the devices "make trailers look like rocketships" and make driving easier by providing additional stability and reduced spray at the tail end of the trailer. The device collapses when a driver opens the rear doors of the vehicle and easily expands into its aerodynamic shape once the doors are closed. Patented TrailerTail® hinge systems allow swing door trailers to access loading bays normally. Patented roll-door applications of the TrailerTail® technology will be available commercially in 2009. ATDynamics will launch TrailerTail® technology with select fleet operators in 2008. Fleets should contact ATDynamics Director of Fleet Relationships, for more information at: fleets@atdynamics.com Testing and development of TrailerTail® technology depended on the forward thinking leadership of industry partners such as Logistics Management, Robert Transportation, GE Trailer Fleet Services and Utility Trailer.
TrailerTails® are concave, rigid structures extending up to four feet off the rear of a trailer which collapse effortlessly to ensure easy access to frieght and docking facilities. Initial development and patenting of the ATDynamics technology was conducted by ATDynamics Advisory Board members, Dr. Kyril Calsoyas, Founder of Aero-Truck, and David Calley, President of Southwest Windpower. The TrailerTail® aerodynamic shape was exclusively licensed by ATDynamics in 2006. Wind tunnel and on-road tests conducted in partnership with major fleet vehicle operators have shown the TrailerTail's® ability to reduce tractor-trailer drag by 12-20%. At diesel prices of $3 per gallon, the long-haul trucking industry will realize savings of $1,000 - $5,000 per trailer per year. (Based on a baseline long-haul trailer traveling 40,000 to 200,000 miles per year at 62 miles per hour.) Calculate Your Annual Fuel Savings with TrailerTail
The ATDynamics device creates a smooth airflow behind a tractor-trailer to reduce rear drag and enhance truck power and performance characteristics. The images below illustrate the results of computational fluid dynamic modeling of a tractor-trailer (top view) without, and then with, the TrailerTail® device. The truck is moving from left to right. The lines on the left hand side of the image below represent turbulence and the low-pressure zone created by the truck passing through air at highway speeds. Computational Fluid Dynamic Modeling – Turbulent Airflow Without TrailerTail®
Computational Fluid Dynamic Modeling – Streamlined Airflow With TrailerTail®
The lines flowing smoothly off of the tractor-trailer illustrated in the next image illustrates the lack of turbulence and smooth flow of air at the rear end of the truck when the ATDynamics device is installed. Additional specifications and product information are available for select fleet operators participating in product launch. Still have Questions? See our TrailerTail® Frequently asked Questions, or email info@atdynamics.com Trailer Skirts ATDynamics offers best-in-class side skirt technology as part of complete aerodynamic packages for fleet customers. Fleets purchasing side skirt kits in combination with TrailerTail® rear-drag reduction technology receive ongoing ATDynamics engineering support to ensure maximum fuel savings potential. Depending on device configuration, side
skirt technology can independently deliver 4-7% fuel efficiency
gains (SAE test data). ATDynamics is constantly researching side
skirt performance and durability improvements and looks forward
to helping fleet customers select and test best-available technology.
New Products Product Development We are constantly researching and developing new fuel efficiency product lines for the freight transportation industry. The company’s design and patent portfolio includes multiple fuel savings technologies related to trailer aerodynamics and the freight transportation industry. Our latest products include WheelShield™ aerodynamic hubcaps and a spare tire mount specifically designed for wide-base tires, SuperSpare™. In addition to its commercially available product lines such as TrailerTails®, ATDynamics engineering and research team specialize in custom solutions for unique trucking fleet or transportation related operations. ATDynamics works closely with fleet customers and OEM trailer manufacturers to develop custom product lines. ATDynamics' TrailerMagination® program is focused on the ground-up re-design of super-efficient trailer configurations.
Research & Design
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