Aerospace Instrument-Making Annotation << Back Construction of fuzzy knowledge bases of situational systems of intellectual support of problem solving of aviation onboard complexes I.A. Gaynullin, A.P. Rogalev The main conditions of effective operation of the new generation aviation complexes are the adequate estimation of tactical conditions and acceptance of correct solutions at execution of the flight task. Onboard systems’ creation of intellectual support of problem solving by the integrated onboard complexes based on new information technologies allows lowering considerably psychological load on crew, to increase efficiency of problem solving of aviation complexes and to provide safety of target application of the flying device.