Accession Number : ADD009827

Title :   Self-Employing Afterbody Apparatus for an Ejection Seat.

Descriptive Note : Patent Application,


Personal Author(s) : Schultz,Edwin R

Report Date : 14 Sep 1982

Pagination or Media Count : 9

Abstract : The present invention is directed to a self-deploying stabilizing and drag reducing apparatus for an aircraft ejection seat. The apparatus comprises a cover plate, a plurality of stiffeners and a fabric skin of material. The cover plate is pivotally mounted at one end to a back side of the ejection seat. The stiffeners are pivotally mounted at their bases to the back side of the seat and located between the cover plate and the seat. The fabric skin extends between the cover plate and seat and covers the stiffeners so as to form an expandable and collapsible bellows-like afterbody structure. In a stowed or collapsed position, the afterbody structure is folded up and locked against the back side of the seat. When the seat ejects, a lanyard or strap, one end of which is attached to the afterbody pivotal cover plate and the other end to the aircraft floor, pulls the bellows-like afterbody structure into an extended, operative position. When the afterbody structure is fully extended, the continued ejection of the seat causes the lanyard to detach, breaking the interconnection of the cover plate to the aircraft floor.

Descriptors :   *Patent applications, *Ejection seats, *Stabilization systems, *Escape systems, Aircraft seats, Deceleration, Afterbodies, Hoods, Self operation, Deployment, Drag, Pitch(Motion), Yaw, Structural properties, Plates, Ring stiffened cylinders, Coverings, Pivots, Collapsible structures, Skin(Structural), Fabrics

Subject Categories : Aircraft
      Escape, Rescue and Survival

Distribution Statement : APPROVED FOR PUBLIC RELEASE