Issues of aviation flight safety conducted with an on-board information exchange system are discussed. The system information analysis method is used. An analysis of in-flight hazard sources and the means of their elimination from the information exchange point of view are carried out including the influence of the information exchange system's parameters, work algorithm and architecture. The value of information exchange speed on safety in dynamic flight conditions is discussed. A modification of architecture and the information exchange system algorithm are proposed to increase the exchange speed and the whole system's effectiveness based on parallel processing as well as to enhance the probability of successful elimination of an emergency situation.
Keywords: avionics; digital information system; information exchange subsytem (IXS); multiplex information exchange system; parallel computations; processing unit.