Abstract: A rigid cargo barrier for a cargo airplane includes a lightweight structural bulkhead that is attached to the floor and fuselage shell of the aircraft and a plurality of compact attachments that connect the bulkhead to the floor and fuselage shell of the aircraft. The rigid cargo barrier also includes a restraint system that connects the bulkhead to the aircraft floor and fuselage shell. The restraint system restrains fuselage expansion under crash loads to maintain the bulkhead in place during a crash event and, hence, provide protection to the crew from shifting cargo.

Abstract: A system for providing a Head-Up Display (HUD) on board an aircraft to assist a pilot in guiding the aircraft. The display is positioned in the pilot's normal line of sight. In one mode it utilizes a radio beam landing system such as an ILS (Instrument Landing System) to generate symbols that correspond to visual ground cues which, together with an aircraft symbol display, provide the pilot with cues for aligning the aircraft on the appropriate path for approach and landing. The system moves the aircraft symbol in accordance with motion changes of the aircraft. During a landing approach the pilot "flies" the aircraft symbol relative to the simulated and/or real ground cues. By making the HUD correspond with ground cues, the abrupt transition from instrumented to visual flight is eliminated. At altitudes below which available ILS is not acceptable, the system provides a smooth transition to a mode independent of ILS and then to a flare mode.