Test results of a model of a water-jet propulsion of a cargo boat

The article discusses the test results of a self-propelled scale model of the КС-110.2-34 water-jet cargo boat. Purpose: to measure and calculate the main characteristics of the model of a water-jet propulsion system installed on a ship for their subsequent comparison with the characteristics of other newly developed water-jet propulsion systems. Results: a large-scale model of the propulsion system was designed and manufactured, consisting of models of a boat hull and a water-jet propulsion system of the original design, installed measuring equipment and a reading recording unit. A test program and a methodology for processing measurement results are proposed and their reliability is verified. It was found that the test results obtained in open water have low repeatability due to their high dependence on hydro and meteorological conditions, and incorrect placement of pressure sensors in the flowing part of the water cannon reduces the accuracy of the measurements performed. In order to obtain more reliable and stable results, it is concluded that it is necessary to increase the scale of the model and its speed. Further directions of work on improving the instrument and measuring complex have been determined.