DIGITAC II - Architecture and Redundancy Management 851824

The development and flight test evaluation of the architecture and redundancy management techniques used in the DIGITAC digital flight control system (DFCS) are presented in this paper. The architecture is basically a dual-channel Mil-Std-1553 multiplex data bus system. The data busses have the capability for electrical or optical operation.
The DIGITAC flight control system uses in-line self-test in order to achieve fail-operative performance for the computers, remote terminals (RTs), and data busses. Analytical redundancy techniques were used to achieve fail-operative performance from the dual mission essential sensors. Lightning tests were conducted on the DFCS in the laboratory in order to determine susceptibility and to demonstrate operational immunity. Flight testing was performed on the DFCS in a YA-7D aircraft.


Subscribers can view annotate, and download all of SAE's content. Learn More »


Members save up to 43% off list price.
Login to see discount.
Special Offer: With TechSelect, you decide what SAE Technical Papers you need, when you need them, and how much you want to pay.