Aerospace Instrument-Making Annotation << Back THE USE OF ONBOARD TECHNICAL MEANS TO PREVENT LIMITING FLIGHT CONDITIONS N.N. Suhih, Yu.E. Horoshavcev, V.L. Rukavishnikov, V.A. Bajgulov The maximum flight modes are understood as the modes associated with the maximum values of heights, lateral deviations, speeds, angles, overload. These limit values can be caused by violation of the rules of flight operation, getting into difficult atmospheric conditions, equipment failures. A high level of professional skill of the flight crew is a necessary condition, but not sufficient to exclude access to the limit modes. In addition, technical solutions are required to prevent them. The article discusses the main parameters of the limit flight modes, the factors leading to the appearance of these modes. A fairly complete list of such tools is presented and a characteristic of each of them is given. The material contained in this article can be divided into two parts. Analog devices and systems for the prevention of extreme flight modes within the framework of the classification proposed in the article. It should be noted that even today these systems are successfully used on board civil aviation aircraft. Digital systems for solving these tasks. Two digital systems TCAS and TAWS are presented, informing and warning the crew about the occurrence of various special situations. Keywords: On-board systems, technical means, extreme flight modes, Automation tools, stability and controllability, digital flight control systems, Traffic Collision Avoidance System, Terrain Avoidance and Warning System. DOI: 10.25791/aviakosmos.4.2023.1331 Pp. 03-24.