Abstract: Disclosed is a barrier for use in a vehicle to restrain equipment and cargo in the event of a sudden deceleration of the vehicle. The barrier includes a honeycomb panel provided with thin face sheets on its forward and aft surfaces. A channeled frame surrounds the perimeter of the panel and is provided with attachment fittings for securing the assembly to the vehicle. A pair of vertically disposed, spaced-apart straps are located on the forward surface of the panel in line with, and attached to, the attachment fittings. In the event of sudden vehicle deceleration, equipment or cargo may be thrown forward into the barrier, applying a load thereto. The honeycomb panel withstands the load developed normal to the barrier. The components of the load that are developed "in-plane" with the barrier are transferred to the straps by the particular configuration of straps and attachment fittings.

Abstract: A simple, compact, cantilever-type spring (31) is mounted on the aircraft body structure (22) and is positioned so as to be deflected from its normally unstressed condition to a stressed state (31') by means of a radially projecting roller (39) mounted on and carried by the body-mounted torque tube (35) during at least the final increment of movement of the aircraft door (20) when it is being shifted to its fully opened position so as to store energy in the spring (31) for assisting in closing of the door (20) and counterbalancing the hinge moment attributable to the weight of the door (20) when the door is moving upslope during a door closing operation and for thereby minimizing the exertion of the on-board flight attendant (29) who is required to apply torque manually by pulling upwardly and outwardly thereon to overcome the door hinge moment until such time that the door (20) begins its downslope travel about the canted hinge axis (35).