The urgency of the problem of increasing the efficiency by reducing the visibility of aircraft and installing radio interference on the radio-electronic systems of the air defense complex is substantiated. The main characteristics of the on-board electronic radio protection system of an unmanned aerial vehicle are determined. When designing a low-visibility aircraft, it is advisable to simultaneously solve three-level tasks – the formation of a technical task for the design of aircraft, technical proposals and design sketches. In solving the problems of the first level, operational-tactical, flight-technical characteristics of the aircraft are analyzed and requirements for indicators of visibility are justified, the second one – a matrix of alternative design solutions is formed and rational structural solutions for the airborne complex and aircraft appearance as a whole are determined, the third one determines optimal design -Ballistic, geometric design parameters of technical solutions and aircraft in general. The statement of the problem is formulated in the article. A block diagram of the analysis of design solutions for the placement of an active noise station on board an unmanned aerial vehicle and optimization of their parameters based on a complex "cost-effectiveness" criterion is given. At the same time, it is necessary to take into account the influence of alternative technical solutions on low visibility and their design parameters on geometric, aerodynamic, energy, ballistic, thermal characteristics, mass, cost, indicators of visibility and combat effectiveness. The structural and logical scheme for solving the problem for a given technical assignment for the design of an unmanned aerial vehicle includes the following steps: the formation of the initial information and the development of a "support" version of the aircraft structure; formation of a morphological matrix of design decisions on aircraft; compatibility assessment, constraint systems and identification of feasible solutions; generation of permissible variants of appearance; preliminary analysis of the permissible variants of the appearance and selection of the preferred ones; quantitative structural-parametric synthesis of the visually perceptible unmanned aircraft.