Issues Involved in the Development of an Open Standard for Data Link of Aviation Weather Information 5. Report Date 6. Performing Organization Code 8. Performing Organization Report No. 13. Type of Report and Period Covered

This paper describes how an effective and efficient data link system for the dissemination of aviation weather information could be constructed. The systemis built upon existing " open standard " foundations drawn from current aviation and computer technologies. Issues of communications protocols and application data formats are discussed. The proposed aviation weather data link system is independent of the actual link mechanism selected.