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CONTENTS #10 (October) 2021

Navigation legal and regulatory framework system and international activities performance evaluation. Part 1. Problematic issues (p. 3 – 27)

A.I. Bolkunov, K.I. Reytor, N.A. Abyzyarova

This article is the first in series of 5 articles dedicated to navigation legal and regulatory framework system and international activities performance evaluation. Current article is dedicated to problematic issues of such performance evaluation. The article provides: an overview of performance evaluation spheres in navigation legal and regulatory framework system and international activities performance evaluation; analysis results on the theoretical problems of legal and regulatory framework (including problems with «legal» and «regulatory» terms; regulation subject of legal and regulatory framework in navigation; problems on categorical levels of legal and regulatory rule; definition problem with «act» and «regulatory act»); analysis results on problematic issues with legal and regulatory subsystem of navigation legal and regulatory framework system.

Keywords: navigation systems; GLONASS; performance evaluation; navigation legal and regulatory framework system.

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Determ Rational Concept of High-Altitude Airship and its Power Systems for Long Hovering in the Northern and Arctic Regions of Our Country (p. 28 – 37)

А.V. Redkin, I.Е. Kovalev, А.N. Kostyuchenkov

The method for calculating a high-altitude airship with a hybrid propulsion system using two types of energy: solar and chemical fuel is developed. Сalculation studies, confirming the feasibility of such a concept are performed. This concept allows adapting the propulsion system of high-altitude airship to the irregularity of the wind velocity distribution profile during all seasons of the year.

Keywords: high-altitude airship; hybrid propulsion system; solar power system; solar cell battery; turbocharged piston engine; statistical data on wind velocity conditions (wind statistics).

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Technological Challenges of Integrating Large-scale Remotely Piloted Aircraft Systems into a Single Airspace (p. 38 – 44)

V.V. Voronov, V.V. Priymak, O.E. Ermolaev

The integration of the remotely piloted aircraft systems (RPAS) in the common airspace is a critical problem for the RPAS market development both in commercial and governmental domains. The safe flight of the RPAS in the common airspace requires certain technical improvement to be committed. This includes control and communication (C2), onboard sensing, ground infrastructure. The major technical challenges of RPAS integration in the common airspace are discussed.

Keywords: remotely piloted aircraft system; air traffic control; automatic dependent surveillance; air traffic collision alert; remote pilot station.

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Analysis of the Characteristics of Advanced Earth Remote Sensing Spacecraft Сonsidering the Development of Technology and Engineering (p. 45 – 54)

V.V. Lamzin, V.A. Lamzin

Forecast studies of the characteristics of advanced Earth remote sensing (ERS) spacecraft (SC) considering development of technology and engineering are carried out. The spacecraft that is аpart of the space segment of the system is considered as an object that includes a target equipment module (TEM) and a unified space platform (USP). The task of complex optimization of modification parameters of spacecraft and replaceable TEM subsystems, design solutions of which reflect the trends in the development of technology and engineering, is presented. The solution to the problem involves two interlinked steps. First, the issues of complex optimization of parameters of the SC modification, the TEM module and the TEM subsystems are considered. Then the impact of the characteristics of the TEM subsystems to be replaced on the technical and economic performance of advanced SC modifications is investigated. It is expected that such predictive studies will allow more informed approach to determining the rational characteristics ERS technology and engineering.

Keywords: Earth remote sensing; space system; spacecraft; modernization; modification; forecast studies; comprehensive replacement of subsystems; target imaging equipment; technical and economic characteristics.

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External Aerodynamic Balances: Current Situation and Development Prospects (p. 55 – 62)

V.S. Volobuev, S.V. Zimogorov, A.A. Kulikov, V.V. Lyutov, V.S. Manvelyan, V.V. Petronevich

Some types and designs of aerodynamic external balances, their features, advantages and disadvantages are considered. The prospects for the development of aerodynamic external balances are presented.

Keywords: aerodynamic external balances; mechanical balances; platform balances; external multicomponent strain gage balances.

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