Trailer Efficiency - Aerodynamic solutions for trailers

An air dam at the front wall of the trailer reduces the free space between the tractor and the semitrailer, reducing air turbulence in this area and lowering wind resistance.

In front of the pallet box under the trailer, there is an additional air dam whose distinctive profile stabilises the airflow under the trailer.

As in the design study, the plastic side skirts are slightly curved. They reduce turbulence under and alongside the vehicle, thus making a significant contribution to reducing wind resistance.

The striking rear diffuser has the shape of a trapezium and links up with the underbody panelling. The side trim panels channel the air flow past them in the direction of the rear diffuser. 

The diffuser encloses the rear underride guard and accommodates the rear lights. It also reduces air turbulence at the rear of the trailer, thus cutting both wind resistance and fuel consumption

A boat tail with end flaps measuring up to 500 mm in length and positioned at an angle helps reduce wind resistance at the trailer rear even further. The folding elements facilitate access to the load compartment without compromising either the handling or manoeuvrability of the tractor-trailer combination.