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The article presents the calculation of the optimal diameter of the mesh channel of the air intake of the propulsion system of a small spacecraft, which operates on outboard air. Graphs of the dependence of the efficiency of the air intake on its diameter, the dependence of the mass flow rate of particles m on the diameter of the air intake are obtained. The analysis of the environmental friendliness of creating a propulsion system by the EIO method is carried out. The assessment of the harmfulness effect of the device on the environment during its operation was carried out.

Calculation of the optimal diameter of the air intake of the propulsion system for small spacecraft