flight test of a resident backup software systemA new fault-tolerant system software concept employing the primary digital computers as host for the backup software portion has been implemented and flight tested in the F-8 digital fly-by-wire airplane. The system was implemented in such a way that essentially no transients occurred in transferring from primary to backup software. This was accomplished without a significant increase in the complexity of the backup software. The primary digital system was frame synchronized, which provided several advantages in implementing the resident backup software system. Since the time of the flight tests, two other flight vehicle programs have made a commitment to incorporate resident backup software similar in nature to the system described here.
Deets, Dwain A. (NASA Ames Research Center Moffett Field, CA., United States)
Lock, Wilton P. (NASA Ames Research Center Moffett Field, CA., United States)
Megna, Vincent A. (Draper, Charles Stark Lab., Inc. Cambridge, Mass , United States)
September 5, 2013
July 1, 1987
Publication: AGARD, Fault Tolerant Considerations and Methods for Guidance and Control Systems