Abstract: A tractor and trailer coupled together in a tandem towing relationship is provided with a Retractable Air Flow Gate System attached to the tractor which aerodynamically reduces the drag and turbulence on such combination by closing the gap between the cab of the tractor and trailer. The rack is attached to the support frame which is bolted to the tractor frame. The Retractable Air Flow Gate System is attached to the rack. The top adjustable hinges and bottom adjustable hinges are attached to the rack on one side and attached to the extrusions on the opposite side. The two electric gear driven motors are embedded in the top of the extrusions, they are powered by the electrical system from the tractor, this is what operates the air foil gates to open and close. The bottom adjustable hinges support the extrusions, air foil gates and rubber strips.

Abstract: A tractor and trailer coupled together in a tandem towing relationship is provided with a Retractable Air Flow Gate System attached to the tractor which aerodynamically reduces the drag and turbulence on such combination by closing the gap between the cab of the tractor and trailer. The rack is attached to the support frame which is bolted to the tractor frame. The Retractable Air Flow Gate System is attached to the rack. The top adjustable hinges and bottom adjustable hinges are attached to the rack on one side and attached to the extrusions on the opposite side. The two electric gear driven motors are embedded in the top of the extrusions, they are powered by the electrical system from the tractor, this is what operates the air foil gates to open and close. The bottom adjustable hinges support the extrusions, air foil gates and rubber strips.