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The effect of different methods of accounting error components of the engineering system on the treatment process to achieve the desired product quality is considered. The feasibility of the inherited and operational characteristic control based on the intelligent control systems is described. The technique of the part squareness estimate is offered. The novelty of the approach is in analyzing the effect of the combined characteristics that is more informative versus the effect estimate of each of them. An algorithm for the function calculation program of distributing the cutterpath coordinates used to evaluate entering the acceptable range is presented. An example of the probable error calculation procedure application including the effect of deviation of the tool actual trajectory from the CNC programmed one under part cutting on the multi-operation machine is provided.

The research performed is dedicated to the problem of energy efficiency analysis of modern delivery drones. 12 models are chosen to provide a statistical calculations of the average ratio of mass and flight range of the drone. The method of least squares is used to analyze trends. The conclusion is made that the most successful companies apply the similar ratio of mass and flight range. The most successful drones of such companies are able to carry from 1.3 to 2.27 kg of cargo and have a flight range from 10 to 24 km. That allows to judge about the energy efficiency of these devices.