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Redundant Control for Air-Circulation ValvesFour computers that control airflow to "X-wing" helicopter rotor arranged in redundant configuration. Ensures circulation control of rotor continues to function even if two of computers fail. Rotor uses 48 valve actuators regulating distribution and quantity of air flowing from leading and trailing edges.
Document ID
19870000384
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Johnson, R., Jr. (United Technologies Corp.)
Trustee, B. (United Technologies Corp.)
Fischer, W. (United Technologies Corp.)
Date Acquired
August 13, 2013
Publication Date
September 1, 1987
Publication Information
Publication: NASA Tech Briefs
Volume: 11
Issue: 8
ISSN: 0145-319X
Subject Category
Electronic Systems
Report/Patent Number
ISSN: 0145-319X
Report Number: ARC-11531
ARC-11531
Accession Number
87B10384
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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