Aerodynamic Technologies

Note: The following content has been reproduced and adapted for the convenience of Canadian SmartWay audiences with permission of the US Environmental Protection Agency (EPA).  To view the original content at the source, please go to EPA - SmartWay Technology Program web site.

It is important to note that some fuel saving technologies listed on these pages do not comply with Canadian regulations. Always consult with provincial/territorial authorities before purchasing.

Natural Resources Canada endeavors to ensure our content is up to date, however if you notice any errors in the information below, please notify us at NRCan.SmartWay.RNCan@canada.ca.

Verified Aerodynamic Technologies

Aerodynamic technologies minimize drag and improve air flow over the entire tractor-trailer vehicle. Aerodynamic technologies include gap fairings that reduce turbulence between the tractor and trailer, side skirts that minimize wind under the trailer, and rear fairings that reduce turbulence and pressure drop at the rear of the trailer. Using fairings in combination with one another (or, in a few cases, when used alone) have the potential to provide an estimated 5 percent or greater reduction in fuel use relative to the truck's baseline, when used in conjunction with an aerodynamic tractor on long haul Class 8 trucks, in highway type operation. This reduces NOx emissions, saves up to 800 gallons (3028 litres) of fuel, and eliminates over nine metric tons of greenhouse gas emissions per year.

EPA has verified the following categories of aerodynamic technologies:

  • Trailer Gap Reducer and Trailer Side Skirts (used in combination with one another)
  • Trailer Boat Tail and Trailer Side Skirts (used in combination with one another)
  • Advanced Trailer End Fairing
  • Advanced Trailer Skirts

Trailer Gap Reducers

Trailer Gap Reducer (should be used with side skirts) - estimated fuel savings: 1 percent or greater.

  • Carrier Transicold Gap Fairing
  • FreightWing Gap Reducer
  • Laydon Composites Gap Reducer
  • Nosecone "Nose 3-D" Gap Reducer (consists of top and side units sold as one piece of equipment)

Trailer Boat Tails

Trailer Boat Tail (this or the gap reducer should be used with side skirts) - estimated fuel savings: 1 percent or greater.

  • Aerodynamic Trailer Systems (ATS) dual lobe boat tail
  • AeroVolution inflatable boat tail
  • ATS SmartTail
  • Kodiak Innovations Bumper Bullet
  • SOLUS Air Conqueror Package SP: 4.9 (WheelCover/AftSkirt/Tail1)
  • SOLUS Air Conqueror Package SP: 3.6 (WheelCover/AftSkirt/Tail2)
  • SOLUS Air Conqueror Package SP: 3.4 (WheelCover/AftSkirt/Tail3)
  • SOLUS Air Conqueror Package SP: 2.4 (WheelCover/AftSkirt)
  • Transtex rear trailer fairing

Trailer Side Skirts

Trailer Side Skirts (should be used with gap reducer or boat tail) - estimated fuel savings: 4 percent or greater.

  • Carrier Transicold Belly Fairing
  • Fleet Engineers Extended Air Slipper
  • FreightWing belly fairing Trailer Skirts
  • Kodiak Innovations AirPlow
  • Laydon Composites Trailer Skirts - 6 or 7 panel
  • Ridge Corp. - GreenWing RAC0002
  • Silver Eagle Mid-length Skirt
  • Silver Eagle Mini-skirt
  • SOLUS Air Conqueror Split Skirt SSR I (12-0-6)
  • SOLUS Air Conqueror Split Skirt SSR II (12-2-6)
  • SOLUS Air Conqueror Split Skirt SSA I (12-4-6)
  • SOLUS Air Conqueror Split Skirt SSA II (14-2-6)
  • Transtex Trailer Skirts
  • Utility Trailer - Utility Side Skirt 120

Advanced Trailer End Fairing

Advanced Trailer End Fairing (this can be used with or without other fairings) - estimated fuel savings: 5 percent.

  • ATDynamics TrailerTail rear trailer fairing
  • ATDynamics TrailerTail Trident
  • ATS Integrated Automated System (WindTamer with SmartTail)
  • Avantechs Inc VorBlade Wing (with Crosswinds Mitigator subsystem)
  • SG Engineering Flow-Pod with Tail-Pod system
  • SmartTruck UT-1
  • SmartTruck UT-6

Advanced Trailer Skirt

Advanced Trailer Skirt (this can be used with or without other fairings) - estimated fuel savings: 5 percent.

  • Aerofficient - Aero-slide side fairing system (with rearmost telescoping panel) (model  ASFS)
  • Aerofficient - Fixed side fairing (with landing gear wrap panel) (model  FFGW)
  • Aerofficient - Fixed side fairing (with landing gear toe in panel) (model  FFTI)
  • Airflow Deflector - Deflector
  • American Trailer Skirts - American Trailer Kit
  • ATDynamics-Transtex Trailer Side Skirts
  • Atlantic Great Dane - AeroGuard Side Skirt (AGD400-43)
  • Brean Marketing, Inc. ArrowShield
  • Carrier Transicold Aeroflex Fairing
  • CBS SmartWind Aerodynamic Trailer Skirt
  • FreightWing Aeroflex Trailer Skirt
  • Kodiak Innovations AeroCurtain
  • Laydon Composites Trailer Skirt - 8 panel
  • Laydon Composite Classic 7-Panel Trailer Skirt, Product code TRSK700SA
  • Laydon Composites Curve
  • Laydon Composites Hybrid 248 (Intermodal) Trailer Skirt
  • Laydon Composite Hybrid 259 Trailer Skirt, Product code TRSK710SA
  • Prime Inc. EcoFeather Trailer Side Skirt
  • Ridge Corp. - GreenWing RAC0003
  • Ridge Corp. - GreenWing RAC0012
  • Ridge Corp. - GreenWing RAC0031
  • Silver Eagle Aero Saber
  • SOLUS Air Conqueror Performance Split Skirt SSP I (14-0-6)
  • SOLUS Air Conqueror Performance Split Skirt SSP II (16-0-6)
  • SOLUS Air Conqueror Performance Split Skirt SSP III (18-0-6)
  • Strehl Model 715
  • Sweet Bottom Trailer Skirt
  • Transfoil Systems Transfoil
  • Transtex MFS Trailer Side Skirts
  • Utility Trailer USS 120A
  • Utility Trailer USS 120A-4
  • Utility Trailer USS 160
  • Wabash National Advanced Trailer Side Skirt, DuraPlate AeroSkirt - Standard
  • Wabash National Advanced Trailer Side Skirt, DuraPlate AeroSkirt - Angled
  • Windyne Flex-Fairing