Database Management Considerations for IFR Certified Earth-Referenced Navigation Systems

Dale E. Johnson

Abstract:	The rapid acceptance of Loran as an earth-referenced navigation system presents a host of database issues that should be considered and dealt with in the near future. The addition of a complete, well structured database to an earth-referenced navigation system can greatly enhance the functionality of the system by increasing the information available and making it easier to use while reducing pilot workload. We find today that all pilots are making extensive use of a database when it is available. Pilots flying in both visual (VFR) and instrument (IFR) operations can make very effective use of a well structured database. It would be unwise to try to produce separate databases for VFR and IFR operators because many IFR certified aircraft fly a mix of IFR and VFR operations. Serious consideration should be given to the certification of a database intended for use in IFR operations to assure that the required navaids and proper coordinates are included. It will be necessary to allow for other non-certified information to be included in the same database.
Published in:	Proceedings of the 1989 National Technical Meeting of The Institute of Navigation January 23 - 26, 1989 San Mateo, CA
Pages:	153 - 158
Cite this article:	Johnson, Dale E., "Database Management Considerations for IFR Certified Earth-Referenced Navigation Systems," Proceedings of the 1989 National Technical Meeting of The Institute of Navigation, San Mateo, CA, January 1989, pp. 153-158.
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