Abstract: A fairing assembly 10 installed about a heat exchanger, such as a radiator R, to reduce the drag on the vehicle, comprising: a frame installed about the heat exchanger, the frame having a curved contour; a panel mounted in the frame, the panel and fairing assembly defining an air passage for air flow to the heat exchanger; a cover installed in the frame and movable to control air flow through the passage to the heat exchanger; and, moving means for moving the cover over the frame to expose a portion of the opening and allow air to flow into the heat exchanger, the frame and cover thereby reducing the amount of drag on the vehicle while still allowing air flow into the heat exchanger; wherein the panel comprises a first overlapping part and a second overlapping part; and wherein the first overlapping part is moveable from an extended position to a retracted position when the fairing is impacted.

Abstract: A cowling assembly (10) is installed about the radiator (R) of a vehicle (V). A frame (12) fits about the radiator and defines an opening through which air can flow into the radiator. A rack and pinion drive (600) for moving a sheet (618) over the frame to expose a portion of the opening and allow air to flow into the radiator, the frame and sheet producing a smoother flow of air over and about the front of the vehicle thereby reducing the amount of drag on the vehicle while still allowing air flow into the radiator.