Zoom In - Semi Trailer with Freight Wing Gap Fairing Freight Wing Semi Trailer Aerodynamics Gap Fairing

Freight Wing Gap Fairing

No matter how aerodynamic your tractor is, air still pours into the gap between your tractor and trailer to hit the trailer's front face, especially in cross winds. The patented Freight Wing Gap Fairing™ saves on your fuel costs by helping to close this gap and by providing curved airfoils on the top and sides of the trailer face to redirect spillover airflow.

It is the only gap fairing that is specifically designed for use with modern aerodynamic tractors that shield the center of the trailer’s front face. It also works great with trucks with poor aerodynamic roof or side extender coverage. The Gap Fairing is an EPA SmartWay verified technology that will also helps fleets comply with the new California CARB Heavy-Duty Vehicle Greenhouse Gas Emission Reduction Measure.

Adding the Freight Wing Gap Fairing to your trailer is an easy way to gain maximum aerodynamic efficiency that is so important in long haul operations

Fuel Savings:

Semi Trailer with Gap Fairing Installed
Walmart Semi with Gap Fairing Installed
Add the Aeroflex for up to 9.5% total fuel savings

The Gap Fairing provided an additional 2% fuel savings when tested with the Belly Fairing in SAE/TMC J1321 type II testing. Unlike trailer skirting, the fuel saving results of front trailer fairings can be more variable due to different tractor aerodynamic configurations and gap settings, but this is still an important area for improvement for long haul fleets needing maximum aerodynamic coverage. Fleets with the best aerodynamic tractors and a tight gap setting will see around a 1% improvement, but these savings increase dramatically if the tractor aerodynamics are not ideal or if it is impossible to achieve a gap setting of 24 inches or less between the tractor side extenders and the trailer.

In typical situations where a normal gap setting is paired with a normal aerodynamic tractor, an approximate 2% fuel savings can be expected. Savings in excess of 2% would be expected in cases where a wider gap is paired with trucks with limited roof fairing coverage as in a mid roof tractor or a day cab with smaller roof fairings.

Evaluating potential fuel efficiency gains from the Gap Fairing can be difficult, but this area of potential improvement should not be neglected as many fleet operations can greatly benefit from their use. For the many fleets that can not slide the 5th wheel forward enough to achieve a tight gap setting, the Freight Wing Gap Fairing is the perfect solution to improve fuel economy.

Durability, Installation, and Maintenance:

Showroom Semi Trailer with Gap Fairing Installed

The Freight Wing Gap Fairing is easily mounted to nearly any dry van trailer, providing improved trailer aerodynamics. The innovative design allows different trailer corner and leading edge geometries to be accommodated with a perfect fit. This unit is solidly proven in operations with some fairings approaching 5 years of service.

The gap fairing is within the turning radius of the trailer so it will not contact the tractor when turning even if you run a tight gap.

No maintenance is required beyond periodic fastener inspection. The gap fairing is within the turning radius of the trailer so it will not contact the tractor when turning even if you run a tight gap. The center of the trailer face remains open to allow convenient access to the back of the cab and hook up cables.

Specifications:

Parts Numbers
  • 76-50172-00 single packed standard unit fits 53’ & 48’ dry vans, and 28’ pups
Fuel Savings
  • 2% Independently verified via SAE/TMC J1321 Type II testing
  • 1-3% Savings measured in fleet operations
Regulatory
  • EPA SmarWay verified in the trailer gap reducer category
  • Meets CARB trailer requirements when combined with an EPA verified trailer side skirt
Unit Weight
  • 75 lbs. for standard unit
Dimensions
  • Height of the unit is 90.97” and the width is 91.7" 
Installation
  • 2-3 man hours
Maintenance
  • Incorporate into normal trailer inspection schedule
  • Reduces horsepower requirements on truck engine
  • Modular construction allow easy replacement of any parts
Materials
  • Lightweight 3105 aluminum panels
  • All supporting components protected from corrosion
  • All materials 100% recyclable with high cost recovery
Colors & Graphics
  • White
  • Custom colors available with 25 unit minimum and painting up charge
  • Graphic options from small stickers to full wraps
Operations
  • No special driver requirements
  • No potential for interference with turning radius of tractor or side extenders
  • Trailer face remains open to allow easy access to back of cap and line hook ups
Safety
  • Securely attached to the trailer with redundant/fail safe fastener points
  • Improved airflow around the trailer reduces splash and spray for better visibility for the driver and passing motorist
  • Improves trailer tracking and eases trailer pull for reduced driver fatigue
Availability
  • Available from nearly all trailer manufacturers as a factory installed option
  • Available from select dealer networks for aftermarket installation
Warrantee
  • 1 year warrantee