Accession Number : AD0915575

Title :   Avionics Subsystem Mechanization Analysis and Recommendations.

Descriptive Note : Final rept. 4 Oct 72-4 May 73,

Corporate Author : LTV AEROSPACE CORP DALLAS TX VOUGHT SYSTEMS DIV

Personal Author(s) : Freeman, Jim I. ; Burton, C. L. ; Church, T. L. ; Evetts, S. G. ; Kochan, J. R.

Report Date : MAY 1973

Pagination or Media Count : 299

Abstract : A study was conducted to provide (1) an analysis of avionic subsystem mechanizations, (2) a summary of system mechanization precautions, (3) a tabulation of avionic signal flow, and (4) ground/flight test recommendations. The subsystem mechanization analysis was a determination of the feasibility and extent to which a central multiprocessor could provide functions presently performed within the subsystems. Selected A-7D subsystems and additional conceptual subsystems were examined. It was concluded that virtually all of the functions provided by the Flight Director Computer, Air Data, Computer, NAV/WD Computer, and Terrain Following Computer could be performed by a central processor. The Automatic Flight Control System functions could be handled by a central processor, put the reliability-redundancy-safety questions require further examination. Significant portions of the Head-Up Display, Armament Station Control Unit, and the Laser Spot Tracker could also be provided by a central processor. The mechanization precautions section summarizes perplexities encountered during the integration of the A-7D avionic system. The signal flow tabulation presents the number, type and response of signals utilized in the present A-7D avionic system. Test recommendations were given for an assumed avionic system configuration. A general definition of test equipment and facilities is also included. (Author)

Descriptors :   *AIRCRAFT FIRE CONTROL SYSTEMS), *ATTACK BOMBERS), (*AVIONICS, (*FLIGHT CONTROL SYSTEMS, (*CENTRAL PROCESSING UNITS, AVIONICS), WEAPON DELIVERY, FIRE CONTROL COMPUTERS, MULTIPLE OPERATION, COMPUTERS, LASERS, AUTOMATIC, NAVIGATION COMPUTERS, HEAD UP DISPLAYS, FLY BY WIRE CONTROL, TELEVISION SYSTEMS, INFRARED DETECTORS, INFRARED TRACKING, AVIATION SAFETY, FLOW CHARTING, COCKPITS.

Subject Categories : Bombers
      Attack and Fighter Aircraft

Distribution Statement : APPROVED FOR PUBLIC RELEASE