Autophagous Design and Material Options for Forward Deployed Aircraft IR Decoys with Reduced Risk of Foreign Object Damage

摘要

New infrared (IR) decoys are being developed that will be forward launched from a moving aircraft. Autophagous (self-consuming) materials and components that quickly combust after deployment into harmless debris are considered in this study. The possibility of engine ingestion of an intact IR decoy strongly suggests the use of relatively 'soft' materials that will minimize damage. Based on this and other findings determined in this study, a laminate shell design comprised principally of polymeric and organic (e.g., paper) layers joined or embedded with pyrotechnic substances is recommended for further research and development. Such a shell will probably require one or more layers of aluminum foil for oxygen and moisture barrier purposes and an inertia or electric activated primer system for ignition after launch. Properly designed, such an autophagous shell should be capable of providing: (a) protective and safe packaging for the IR Decoy during handling and launch; (b) sustained IR reactivity through protection from the atmosphere; and (c) disintegration via combustion of fragmented pieces prior to possible interaction with the launching aircraft.