Abstract: A wing contained emergency descent system incorporates a plurality of bays positioned within the wing structure of an aircraft. Each bay opens upwardly and outwardly of the wing through the upper surface thereof and supports a tray positioned within the bay. The tray contains one or more parachute packs and is positioned to be elevatable through the actuation of a pair of doors. The doors form a part of the upper skin of the aircraft wing and each includes an operating arm depending therefrom. The operating arm engages the tray such that the arm elevates the tray, and parachute pack thereon, into the air stream flowing over the wing when the panel or doors are opened.

Abstract: An aircraft letdown system is deployable in the event of power failure or mechanical failure over inhospitable terrain or in the event of environmental conditions which preclude VFR or IFR landings. A parachute system, which is attached to the aircraft at a point in approximate vertical alignment with the aircraft center of gravity, is selectively energized by the pilot when it becomes apparent that a safe normal landing cannot be made. On energization, the parachute canopy and the shroud lines are repositioned from the place of storage to a location external to the aircraft and deployed in the conventional manner. To alleviate the shock of landing to the passengers and cargo, a specially constructed impact absorbing landing gear is extended and the occupants are further protected from the landing shock through impact absorbing seats.