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Copyright © GARTEUR FM-AG(16) Consortium, NLR 2004-2019 All Rights Reserved

 

 

 

 

 

 

                

The fault tolerant flight control designs, as a result of this programme, should be regarded as a first ambitious step towards assessing their potential to improve the recovery and survivability of aircraft in adverse or upset conditions. Follow-on work will be conducted by the research organisations within this Action Group to address the areas of improvement identified during the project, both from a design and real-time aircraft integration aspect. Close collaboration with industry is an important requirement in this effort.

The programme in particular demonstrated the importance of protecting the aircraft’s operational envelope following a failure of a critical onboard system or degradation of the aircraft handling characteristics. Based on the experimental evaluations in this project, it was recognised that protection of the operational envelope should be an integral part of any new intelligent self-adaptive control system. This should not only ensure acceptable controllability in degraded conditions, but also safe control of the aircraft within the remaining performance and controllability boundaries. Additional issues requiring more extensive investigation include sensor redundancy, and fault detection and identification requirements to ensure that reliable information is supplied for control reconfiguration and identification of the aircraft operational boundaries.

 

Within the international aviation community, urgent measures and interventions are being undertaken to reduce the amount of loss of control accidents caused by mechanical failures, atmospheric events or pilot disorientation. Within this area, the application of fault tolerant and reconfigurable control, including aircraft envelope protection, has been recognised as a possible long term option for reducing the impact of flight critical system failures, pilot disorientation following upsets or flight outside the operational boundaries in degraded conditions (e.g. icing). Fault tolerant flight control, and the (experimental) results of this Action Group, may further support these endeavors in providing technology solutions aiding the recovery and safe control of aircraft in degraded or upset conditions.

 

The problems of mitigating loss of control and upset recovery and prevention are currently being studied in follow-up projects as part of continuing work programmes at the Action Group’s organisations.

 

The members of the GARTEUR Action Group FM-AG(16) hope that the results of this project will contribute to a further improvement in the safety and quality of tomorrow’s air travel.

 

  

            

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