Vehicle trailer spoiler-box - has aerodynamic curved construction providing low air resistance between vehicle and trailer

摘要

The curved trailer fairing (a) is fitted to the trailer-front and the inclined position of surface (b) is formed proportional to the coupling-shaft distance (d). The height (c) is related to the loading height of the trailer. The shape of the spoiler box, ensures that air flow is normalised and guided along the sides and the inclined top part of the spoiler, to achieve a marked reduction in air resistance. The rear of the box joins the top part of the drawn vehicle, and this height is related to the vehicle loading height. The inclined top part is hinge-connected to the box.