Operational and Design Considerations of the Sweptwing Jet Transport in Turbulence 650251

Several loss-of-control incidents and three unsolved accidents in 1963, involving sweptwing turbojets, caused the FAA to become gravely concerned over what has subsequently become known as turbojet “upsets.” The upsets are characterized by uncontrolled dives with large losses of altitude and recovery by visual reference.
Part I of this paper deals with design considerations and control limitations of the sweptwing transport. Part II addresses the operational considerations and highlights several research programs in progress concerning sweptwing upsets.


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