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http://dx.doi.org/10.5139/JKSAS.2005.33.5.057

A Study on Aircraft Flight Stability of T-50 Air Data Reconfiguration Mode  

Kim, Chong-Sup (한국항공우주산업(주))
Hwang, Byung-Moom (한국항공우주산업(주))
Hwang, Min-Hwan (한국항공우주산업(주))
Bae, Myung-Whan (경상대학교 항공기계공학부)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.33, no.5, 2005 , pp. 57-64 More about this Journal
Abstract
Modern versions of supersonic jet fighter aircraft using digital flight-by-wire flight control system receive aircraft flight condition such as altitude, airspeed and AoA(angle of attack) from IMFP(Integrated Multi-Function Probe). IMFP sensors data have triplex structure using three IMFP sensors. An air data reconfiguration mode is applied to a T-50 flight control law to guarantee the aircraft flight stability when 2 or 3 IMFP sensors data are invalided. In this study, linear analysis and HQS(Handling Quality Simulator) pilot simulation are performed to analyze flight stability when the air data reconfiguration mode is applied to the control law. And we propose an example that the air data reconfiguration mode is applied to the control law due to second failure of IMFP during T-50 flight. It is found that the aircraft flight stability is not affected when the T-50 flight control law is changed to the air data reconfiguration mode.
Keywords
RSS(Relaxed Static Stability); FLCS(Flight Control System); IMFP(Integrated Multi-Function Probe); Air Data Reconfiguration Mode;
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