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CAPACITIVE FUEL GAUGING SYSTEM ACCURACIES

1989-03-01
HISTORICAL
AIR1184A
This report is intended to identify the necessary analytical tools to enable making value judgments for minimizing the various errors typically encountered in capacitance systems. Thus, in addition to identification of error sources, it describes the basic factors which cause the errors. When coupled with appraisals of the relative costs of minimizing the errors, this knowledge will furnish a tool with which to optimize gauging system accuracy, and thus, to obtain the optimum overall system within the constraints imposed by both design and budgetary considerations. Since the subject of capacitance accuracy is quite complex, no attempt is made herein to present a fully-comprehensive evaluation of all factors affecting gauging system accuracy. Rather, the major contributors to gauging system inaccuracy are discussed and emphasis is given to simplicity and clarity, somewhat at the expense of completeness. An overview of Capacitive Fuel Gauging operation is provided in the Appendix.
Standard

TESTING OF OXYGEN EQUIPMENT

1989-02-01
HISTORICAL
ARP1398
This ARP delineates requirements for system cleanliness, test gas supply system, test stand design, environmental chamber definition, instrumentation, dynamic test equipment and testing procedures.
Standard

Pilot Visibility From The Flight Deck

1989-02-01
CURRENT
ARP4101/2
This document recommends criteria to assure adequate visibility from the flight deck. The flight deck windshield must provide sufficient external vision to permit the pilot to perform any maneuvers within the operating limits of the aircraft safely and at the same time afford an unobstructed view of the flight instruments and other critical components and displays from the same eye position.
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