NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
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.
Document ID
19880001423
Document Type
Other
Authors
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)
Date Acquired
September 5, 2013
Publication Date
July 1, 1987
Publication Information
Publication: AGARD, Fault Tolerant Considerations and Methods for Guidance and Control Systems
Subject Category
AIRCRAFT STABILITY AND CONTROL
Distribution Limits
Public
Copyright
Other
Document Inquiry