23rd Congress of International Council of the Aeronautical Sciences, 8-13 September, 2002, Toronto, Canada
Paper ICAS 2002-5.3.2

AERODYNAMIC AND FLIGHT DYNAMIC REAL-TIME ANALYSIS DURING SPIN AND CAREFREE MANEUVERING TESTS OF THE SAAB JAS39 GRIPEN

K. Andersson, M. Karlsson, M. Staaf
SAAB Aerospace, Sweden

Keywords: saab jas39 gripen, flight control system, maneuver load limiter, peformance, romac

The Flight Control System (FCS) in JAS39 Gripen has a function called the Maneuver Load Limiter (MLL). Its purpose is to give the pilot maximum performance in every situation, without ending up in an out-of control situation or overloading the structure. To evaluate the MLL function and the spin characteristics, flight test have been per-formed at Saab since 1995. One new tool developed to increase efficiency and reduce costs during these tests is called ROMAC (Real time On-line Model and Aerodata Control). ROMAC includes a complete simulation model of the Gripen aircraft, running in real time using telemetry input data from a flying test aircraft.

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