In the design, modernization and further aircraft operation, the issue of bonding as a means of electromagnetic interference control from equipment and static electricity, lightning protection is given much attention. The relevance of this article lies in the need to understand and comply with the requirements of the standards of all parts of the research and production cycle of modernization of aircraft from enterprises that develop devices and equipment for aircraft to the design bureaus of aircraft repair plants. To ensure the normal operation of radio technical apparatus on aircraft, protection against interference is applied, that caused by electrostatic charges due to voltage ripples on the generator commutator and engine manifold or at the output of rectifiers, as well as due to magnetic fields generated by various electrical facilities and wires. Interference protection of aircraft onboard equipment from electromagnetic interference is achieved by carrying out special measures, including screening of conductors, harnesses of the aircraft electrical system and ignition system of power drive units, bonding of shielding coatings of conductors and harnesses, structural elements and aircraft units. Bonding is also carried out to protect against lightning strikes. The article analyzes the requirements of state and industry standards for bonding, as the main technical measure of lightning protection and electromagnetic interference control on aircraft. Careful selection of the requirements of the standards allows to properly conduct and control the bonding of aircraft. It helps to determine the division of responsibilities in the design, execution and control of the state of bonding.

In order to maintain the airworthiness of aircraft in service with our country, there is an urgent need to provide consumable components. Since 2015, experimental operation of aviation tires produced by the companies REDSOUN (Republic of India), QINGAO AOTAI RUBBER CO.LIMITED (People's Republic of China) and STOMIL-POZNAN S.A. (Republic of Poland) has been carried out on aircraft of the Air Force of the Armed Forces of Ukraine and helicopters of the army aviation of the Ground Forces of the Armed Forces of Ukraine in order to determine the possibility and justify the decision on the admission of these aviation tires to regular operation.Despite the extensive experience in the production of AT, the problems of theoretical and experimental research of their operational indicators remain quite relevant for modern aviation today and are subject to consideration.The spectrum of tire operationin various areas of application, the composition and design of modern aviation tires, typical types of tread wear, dependences of changes in load and speed over time and distance during flight, and dependences of temperature changes in different modes of free rolling of the tire are considered. The effect of insufficient pressure and overload on the shear forces and parameters of all take-offs and landings of the aircraft on which the tires are installed is determined.An analysis of the characteristics oftire operation, depending on the number of flights before removing the tires, on the ground speed during take-off, and on the weight of the aircraft was carried out.Statistical analysis of the influence of operational factors on the number of flights before tire removal due to wear and tear and the development of recommendations for the maximum use of resource indicators of aviation tires allow to determine mathematical dependencies that describe the influence of certain operational factors on the wear and tear of aviation tires.The studies of the influence of operational factors on the wear of aviation tires during the experimental operation allowed to determine the possibilities and substantiate the decision to admit aviation tires 610x185 model 1A produced by the company REDSOUN (Republic of India) to regular operation on L-39 aircraft of the Air Force of the Armed Forces of Ukraine were conducted.

У роботі розглядається підхід щодо формалізації процесу випробувань для побудови структури інформаційної моделі випробувань дослідних зразків льотно-технічного обмундирування (ЛТО), призначеного для захисту льотно-технічного складу авіації Збройних Сил України від впливу несприятливих факторів навколишнього середовища та створення із захисним спорядженням та іншими системами забезпечення життєдіяльності, необхідних умов для виконання особовим складом своїх функціональних обов’язків. Авторами обговорюється важливість виконання випробувань для забезпечення безпеки льотного персоналу та підвищення ефективності виконання завдань авіаційних підрозділів наводяться етапи процесу випробувань, починаючи від планування до аналізу результатів. У статті також звертається увага на важливість стандартизації процесу випробувань та використання документації, що визначається вимогами ДСТУ EN ISO/IEC. Отже, стаття зосереджується на розробці нової формалізованої методики оцінки показників якості льотно-технічного обмундирування, яка забезпечує ефективність випробувань та більш точну та об'єктивну оцінку дослідних зразків.

This paper presents the theoretical interpretation and design of algorithm for ergonomic evaluation of flight technical gear (FTG) by aviation-related personnel of the Air Force of the Armed Forces of Ukraine during their daily operation and the testing by expert group. The main scientific result of the study is the substantiation of theoretical and methodological provisions of the author's concept of armament and military equipment (AME) ergonomic evaluation. Urgency of the research is to consider the algorithm for formalization, calculation and analysis of expert evaluations. The aim of the work is to design an algorithm for assessing the quality of AME samples at all stages of the life cycle and, above all, in testing and flight service evaluation (operations of technical diagnosis, maintenance (maintenance checkout) and repair, ability to organize proper operation) to summarize the results of biased and unbiased methods, which will provide the most complete assessment of the quality of AME products. The designed algorithms will simplify the work and reduce the cost of preparing and establishing formal assessments of the test object, means of collecting, converting and providing information for the protocols and the test report. The features of works algorithmization specified in the research should be taken into account when choosing information-methodical approaches, on the basis of which test methods will be built. The designed algorithm for calculating the ergonomic evaluation method of FTG can be used to determine a comprehensive and reliable assessment of the characteristics of the test object according to statistical criteria with accepted probability.

The article is devoted to the simulation of parachuteless airdrop system from helicopters during tests. The issue of testing the equipment strength for parachuteless airdrop is considered in detail. Simulated mathematical modeling of the structural strength characteristics of the parachuteless airdrop system was performed. An assessment of the power strength elements of the removable on-board equipment for parachuteless airdrop design from helicopters is given.