MULTIFUNCTION INTEGRATED APPROACH TO PROVIDING AIRCRAFT INERTIAL DATA

G. Jeffrey Robinette and Robert E. Witters,

Peer Reviewed

Abstract:	This paper describes an approach for providing all the inertial information required by an advanced fighter aircraft from a single set of inertial sensors (gyros and accelerometers). Current aircraft have numerous subsystems performing a wide variety of functions, all requiring inertial reference data. The avionics subsystems requiring inertial data include navigation, reference, flight control, autopilot, cockpit displays, mission avionics, and weapon delivery. Each of these functions obtain inertial data from a dedicated set of inertial sensors. This conventional approach has redundancy of inertial sensors and duplication of inertial data, but since there is no communication between the subsystems, there is no advantage in this redundancy and duplication. Duplication can be eliminated and the advantages of redundancy achieved by providing all required inertial data from a common set of inertial sensors. The challenge of this new approach is to produce a cost effective integrated system architecture that can satisfy all inertial requirements and meet aircraft safety-of-flight and survivability constraints. The Air Force Wright Aeronautical Laboratories is conducting the Integrated Inertial Reference Assembly (IIRA) program to validate this new concept of providing all inertial data from a common set of inertial sensors. When demonstrated, the IIRA concept would have direct application to advanced fighter aircraft as well as advanced transports, trainers, cruise missiles, and bombers.
Published in:	NAVIGATION: Journal of the Institute of Navigation, Volume 29, Number 4
Pages:	271 - 278
Cite this article:	Robinette, G. Jeffrey, Witters, Robert E., "MULTIFUNCTION INTEGRATED APPROACH TO PROVIDING AIRCRAFT INERTIAL DATA", NAVIGATION: Journal of The Institute of Navigation, Vol. 29, No. 4, Winter 1982-1983, pp. 271-278.
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