The article analyzes the current state and prospects of development of transport service systems for combat aircraft, which allowed to form the purpose of the study in this research. The chosen topic is very relevant, because the rational technology of operational planning of transport service process of combat aircraft allows to increase the efficiency of Ukrainian airports in the current martial law conditions. One of the directions of service cost reduction is the determination of optimum distribution of transport resources for aircraft preparation. It is estab-lished that in scientific works considerable attention was paid to the development of airport infrastructure, both military and civil, solution of tasks of effective use of information resources and training of airport personnel, tasks of operational planning at the level of determination of limited technology of systems maintenance, use of digital technologies and construction of models of reliable systems of aircraft transport service. The technological process of transport maintenance of combat aircraft is presented, taking into account the resources involved and the sequence of operations. The process of operational maintenance planning of combat aircraft for maintenance, refueling and ammunition is formalized. According to this process, it is possible to establish the level of influence of the process parameters (the number of resources involved and aircraft serviced) on the evaluation criterion - total costs. Determination of the limitation for the use of available resources with the establishment of the optimal level. An algorithm for determining the optimal number of transport resources, taking into account the conditions of combat aircraft preparation (normal, preliminary preparation and others), the influence of environmental conditions (temperature, time of day), and changes in the normative values of individual resources, is constructed. In accordance with the established sequence of actions, the effectiveness of using the existing technology and the proposed - modular technology, according to certain technological indicators for planning the production process is determined. Keywords: operational planning, combat aircraft, transport service, algorithm.
The article analyzes the current state and prospects of development of systems of ground transport maintenance of aircraft, which allowed to form the purpose of the study in this development. The chosen topic is quite relevant, because effective organization of combat aircraft maintenance allows raising combat effectiveness of Ukrainian air forces. One of the directions of maintenance cost reduction is effective use of resources. The study establishes that in order to improve the quality of transport maintenance and increase the combat effectiveness of the Armed Forces and National Guard of Ukraine, it is necessary to pay attention to the use of new transport vehicles, especially modular designs and development of technology to determine the optimal distribution of transport resources for aircraft maintenance, for different conditions of the transport complex and different types of aircraft maintenance. The authors propose to consider two aircraft maintenance schemes – existing using existing technology and proposed using a modular design. In a modular design, a wheeled tractor acts as a tug, which drives mobile modules, which are special means for servicing aircraft. Such an energy-efficient vehicle may consist of 4 modules at a time. The process of delivering the cargo required for servicing the aircraft at the airport is estimated at costs, which form a set of cost values for each technological process of servicing the aircraft. The set criterion is influenced by the parameters: the cost of performing a unit of the corresponding operation, the cost of one hour of work of one worker, the time of performing the corresponding operation, the number of modules involved to perform the corresponding service, the number of aircraft. The developed models of functioning of combat aircraft maintenance systems for maintenance will allow to take into account the influence of random factors, to assess the possibility of using modular designs, as well as to determine the efficiency of existing resources on airfields in Ukraine.
The article analyzes the current state of the theory and practice of solving the issues related to the delivery of perishable goods by road. The author has determined that in order to improve the efficiency of cargo delivery, one of the promising directions is the development and application of transport delivery schemes, which take into account the change in consumer characteristics of perishable goods during transportation. Product losses during transportation must be taken into account when solving such problems as justifying the expediency of specialized rolling stock, choosing the method of transportation without transshipment, as well as when choosing the most rational delivery schemes. Losses of cargo are usually accounted for by the value of the actual losses and the value of the cargo. The article proposes the use of three schemes for the delivery of perishable cargo. The schemes differ in the way cargo is collected and the way goods are loaded into trucks. Also different are the types of vehicles that can be used in the delivery of goods under different schemes. The first scheme consists of the harvesting of peaches between the rows of the orchard by small tractors. The advantage of this scheme is the possibility of using heavy-duty vehicles with the achievement of maximum use of the capacity factor. Flatbed trucks are used for transportation. As a result of the accumulation of cargo at the point of loading, downtime is reduced by reducing the waiting time of cargo delivery. The second scheme is the need for in-line loading of vehicles in the fields of enterprises. Prefabricated routes for trucks and direct loading in the field are used. Application of the second scheme excludes the possibility of using heavy transport, because the movement will be made on unpaved roads. The need for in-line loading also eliminates the use of loading and unloading mechanisms. The third delivery scheme is similar to the first, but it is proposed to use specialized vehicles with a refrigerated chamber for transportation. As criterion of assessment of expediency of use of the offered schemes total expenses for cargo delivery are accepted taking into account possible losses from cargo damage, on the offered criterion it is expedient to estimate influence of such parameters, as volume of the cargo presented for transportation and length of the route.
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