Contents

Russian Aeronautics

Vol. 68, No. 4, 2025

AIRCRAFT EQUIPMENT

Designing Multicopters with Active Attitude Control: A Thrust Vectoring and Angular Sensor Approach

V. A. Zvonarev and A. V. Leont’ev p. 793  abstract

Multicopters with Morphological Shape Modification: Adaptation to Various Flight Conditions

D. A. Zvonarev and T. Yu. Zhoraev p. 801  abstract

STRUCTURAL MECHANICS AND STRENGTH OF FLIGHT VEHICLES

A Study of the Impact of Using Programmable Failure Zones in the Design of a Tiltrotor to Ensure the Safety of Passengers and Crew during an Emergency Landing

K. E. Molin and T. V. Grishanina p. 810  abstract

FLIGHT DYNAMICS AND CONTROL OF FLIGHT VEHICLES

Multimodal Visual Navigation of Unmanned Aerial Vehicles Using Satellite Maps and Thermal Imaging Cameras

P. A. Lazareva, A. I. Malikov, G. L. Degtyarev, and R. T. Mannanov p. 825  abstract

AERO- AND GAS-DYNAMICS OF FLIGHT VEHICLES AND THEIR ENGINES

Study of the Propulsion Airfoil within the Lifting Fuselage as the Angle of Attack and Intake Airflow Vary

P. V. Bulat and I. A. Volobuev p. 833  abstract

Thrust Force Control of the Expandable Annular Nozzle Taking into Account the Aerogasdynamics of the External Flow

Yu. V. Kaun and M. V. Chernyshov p. 841  abstract

Study of the Propulsive Airfoil for the Lifting Fuselage of a Helicopter-Type Unmanned Aerial Vehicle

N. S. Knyazev and P. A. Arkhipov p. 852  abstract

Integral Characteristics for Typical Tiltrotor Blades of Various Shapes

V. V. Pakhov and E. V. Piskunov p. 859  abstract

New Exact Solutions of the Navier–Stokes Equations for the Description of Unsteady Gradient Shear Flows of Two and a Half Dimensions

E. Yu. Prosviryakov, L. S. Goruleva, and O. A. Ledyankina p. 867  abstract

Passive Method for Damping Acoustic Disturbances Based on the Use of Porous Materials

P. G. Smirnov and N. A. Brykov p. 876  abstract

Effectiveness of Control Mechanisms for Minimizing Flow Separation in Hypersonic Intake

J. Sandeep, AVSSKS Gupta, and V. Voruganti p. 883  abstract

AIRCRAFT AND ROCKET ENGINE DESIGN AND DEVELOPMENT

Comparison of the Load-Bearing Capacity of Foil Bearings with a Supporting Layer with Foil Gas-Dynamic Bearings of the Second and Third Generations

M. P. Bulat and S. I. Sigachev p. 899  abstract

Current State, Development Trends, and New Technical Solutions in the Field of Inlet Devices for Main Combustion Chambers of Gas Turbine Engines

I. N. Volkov and V. L. Varsegov p. 905  abstract

Influence of Internal Geometry Parameters of a Cylindrical Roller Bearing on Wear of Roller Ends and Inner Ring Flanges

Ya. M. Klebanov, K. A. Polyakov, A. M. Brazhnikova, A. A. Sokolov, and A. G. Petrukhin p. 913  abstract

Improving the Fuel Efficiency of a Turbojet Engine Using a Ceramic Recuperator

M. E. Renev, L. O. Vokin, and N. V. Prodan p. 921  abstract

AIRCRAFT INSTRUMENTS AND INSTRUMENTATION COMPUTER COMPLEXES

Investigation of the Karman Vortices’ Effect on Oscillations of Vane Sensitive Element of the Aerodynamic Angles Sensor

V. M. Soldatkin, V. V. Soldatkin, E. S. Efremova, I. A. Razumov, and D. A. Istomin p. 931  abstract

AIRCRAFT PRODUCTION TECHNOLOGY

The Influence of Fabric Characteristics on the Mechanical Properties of Glass Fiber-Reinforced Plastics

K. A. Andrianova, V. S. Nikitin, I. V. Dvoeglazov, and K. V. Korinenko p. 939  abstract

The Effect of Vibration on the Process of Creating Preforms with a Braided Reinforcement Structure for Aircraft Structural Elements

M. R. Ibragimov, R. S. Usmonov, and V. V. Batrakov p. 949  abstract

Consolidation of Carbon Fiber Reinforced Plastics Based on Powdered Polyphenylene Sulfide

R. I. Solov’ev, D. A. Bal’kaev, and L. M. Amirova p. 955  abstract

Simulation of the Folding Process for Production of a Core with an Asymmetric Folded Configuration

V. I. Khaliulin, P. A. Petrov, R. Sh. Gimadiev, and N. V. Levshonkov p. 964  abstract

AIRCRAFT AND ROCKET ENGINE THEORY

A Method for Searching for Optimal Parameters of the Technological Process of Impregnation of Three-Dimensional Reinforced Composite Products Based on Machine Learning Models

L. P. Shabalin, A. V. Pakhomenkov, and E. A. Puzyretskii p. 974  abstract

AUTOMATION OF DESIGN AND PRODUCTION OF AERONAUTICAL EQUIPMENT

Formalization of the Process of Developing the Airborne Radar with a Phase Trajectory in an Acceptable Range of Values, Taking into Account the Uncertainty of Data on the Technical Readiness of Its Components and the Financing Procedure

I. V. Trundaev, V. A. Pankratov, S. P. Solyannikova, and S. S. Mikhailova p. 985  abstract

RADIO ENGINEERING AND COMMUNICATION

Multipath Radio Simulation Based on a System of Stochastic Differential Equations

V. M. Artyushenko and V. I. Volovach p. 997  abstract

Relaxation-Based Monitoring of Fuel Cells Using an Equivalent Electrical RC Circuit

E. S. Denisov, Yu. K. Evdokimov, I. D. Shafigullin, G. V. Nikishina, and R. R. Eniliev p. 1009  abstract

Clock Recovery of High-Speed Data Transmission Interfaces

Yu. V. Kuznetsov, M. A. Konovalyuk, A. B. Baev, and A. A. Gorbunova p. 1016  abstract

A Multifunctional Method for Assessing the Capabilities of Air-Based Radar Reconnaissance Equipment

A. V. Len’shin, E. V. Kravtsov, A. A. Neino, and V. A. Kurakov p. 1028  abstract

A Constant Power Capacitor Charging Power Supply for Radar Transmitter

M. V. Rodin and N. A. Kushnerev p. 1036  abstract

A Study of the Efficiency of the CFAR Algorithm for Aerial Targets Detection in ISAC 6G Networks

E. P. Saulenko and G. A. Fokin p. 1047  abstract

Numerical-Analytical Method for Transient Analysis in Linear Electric Circuits

D. V. Shushpanov p. 1058  abstract

Investigation of Autocorrelation Functions of Signals Reflected from Rotating Structures

D. A. Yasentsev and Bui Trong Nghia p. 1076  abstract

FLIGHT VEHICLE DESIGN

Research on the Design Characteristics of Supersonic Passenger Aircraft

D. A. Dukhnovskii, I. I. Lobkovskii, and D. Yu. Strelets p. 1085  abstract

RADIO ENGINEERING AND COMMUNICATION

A Method for Generating Frequency Diverse Two-Component Optical Combs and Its Applications in Unmanned Aerial Vehicle 5G Communication Systems

A. M. Al-Mufti, G. S. Potapov, A. A. Kuznetsov, A. V. Burdin, and M. Tiwari p. 1094  abstract