Abstract: The subject of this study is the safety of vital activity of the flight and engineering-technical personnel of state aviation. The object of this study is the acoustic safety of professional activities of the flight and engineering-technical personnel of state aviation. The authors meticulously examine such aspects of the topic, as the assessment of working conditions of the flight and engineering-technical personnel of state aviation considering the noise and infrasound; risks of reducing the overall and professional performance due to the impact of the acoustic factor; as well as reliability of the flight and engineering- technical personnel of state aviation. Methodology of the research combines the methods of engineering acoustics, reliability theory, aviation medicine, occupational medicine, ergonomics, and probability theory. The main conclusion consists in substantiation of the need for developing and implementing the special means and methods to ensure the acoustic safety of professional activity of the flight and engineering-technical staff of state aviation as an integral part of the system for providing the safe aircraft operation. It is demonstrated that the system for preventing the negative impact of noise upon the aviation personnel must be comprehensive, as well as include technical and organizational measures, monitoring of the working conditions of flight and engineering-technical personnel, availability and proper application of the individual and collective noise protection, dynamic medical supervision over the flight and engineering-technical personnel of state aviation, with the implementation of a complex of medical-preventive and health-improving measures.

Abstract: The subject of this research is the ensuring of reliable professional activity of the flight and engineer technical personnel of aircraft under the impact of aircraft noise. The object is the functional reliability of operator of the aviation ergatic system. The author examine such aspect of the topic as the analysis of reliability of professional activity of aircraft flight-lifting and engineer technical personnel that ensures the employment of modern aircraft in execution of their professional responsibilities at workplace, including the use of individual and collective protection from noise. The research methodology combines the methods of reliability theory, acoustics engineering, aeronautical acoustics, system analysis and probability theory. The main conclusions of the study consist in the positions that aircraft noise is a potential source of danger, which substantiates the increased risk of erroneous actions of aviation professionals and development of professional diseases that result in the early professional disqualification. Authors’ special contribution into the research of this topic lies in acquisition of the quantitative estimates regarding the potential unreliability of actions flight-lifting and engineer technical personnel.

Abstract: Abstract. The study focuses on the issues of adequate forecasting of investment in scientific and technical products and expertise of design solutions in order to support management decision-making at the early stages of the life cycle of such products. The implementation of design solutions being considered in the planning of production volumes is associated with non-recurring costs related to the development, production and operation of the products. The main areas of the study are: forecast of the cost of scientific and technical products, determination of the volume of investment in production and estimation of operating costs. The methodological basis of the study involves the methods of economic forecasting, systemic analysis as well as the theory of reliability and the theory of design and testing of complex systems. The main results of the study can be summarized as follows: the development of adapted methods to forecast the cost of scientific and technical products, determine the volume of investment in production and operating costs; the practical use (combined application) of these methods enabling to substantiate the needed amount of investments into scientific and technical products at the stage of design solutions