Abstract: Seat-mounted rack assembly for carrying elongated loads in automobiles and other passenger vehicles. The assembly includes a pair of rack units mounted on the backs of two seats in the vehicle in place of headrests, with each of the rack units having a horizontally extending base on which an end portion of the load can rest, a mounting post extending downwardly from the base and into a headrest support socket in the seat back, and a tie down strap for securing the load to the base.

Abstract: A specially contoured barrier type filter disposed in front of a helicopter turbine inlet provides for maximized airflow during forward, as well as sideways flight. The contouring additionally reduces the tendency of the filter to clog. A bypass mechanism is provided should the pressure differential across the filter exceed a predetermined value. The bypass configuration achieves a limited particle separation function in order to provide residual protection. An air box attached to the inlet is formed to provide low distortion levels in the airflow entering the engine inlet.