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PENDANT SEEDER-SPREADER FOR A UNIVERSAL UNMANNED AIRCRAFT SYSTEM
Abstract
The purpose of the study was the laboratory testing of the pendant seeder-spreader (production of China) as part of the universal unmanned aircraft system "OSA HEXA" based on UAV "OSA" (developer and producer was Bozon LLC, Moscow), in connection with which we solved the following tasks: 1) determination and assessment of performance indicators of the functioning of spreading device; 2) selection of the best modes of application of the test object; 3) selection of significant factors affecting the quality indicators of the functioning of the test object; 4) determination of the achieved characteristics of seeding time; 5) determination of the achieved characteristics by the optimal seeding rate; 6) determination of the achieved characteristics by the optimal seeding height; 7) assessment of the correctness of the choice of the angle of inclination of the seeder-spreader. The tests were carried out in December 2018 in a closed hangar with a total area of 9500 m2 and a height of 12 m in accordance with the "Program and test methodology for spreading device based on the UAV "OSA"", developed by the laboratory "AgroEcology" in cooperation with Bozon LLC, using seeds of the following crops: mustard, coriander, yellow melilot, spring wheat, chick-pea, lentil, pea. In the testing process numerous design weaknesses of the seeder-spreader were identified, based on which it was concluded that the pendant agricultural equipment was unsuitable for fieldwork in the conditions of Russia. The R&D department of Boson LLC was recommended to carry out a deep modernization of the seeder-spreader in order to eliminate the identified design weaknesses. Bozon LLC took into account the identified design weaknesses and recommendations and developed and mastered in 2019 the production of the hexacopter "OSA HEXA S-1", designed for automatic sowing of seeds or spreading solids on arable fields, forest land and fishery basins.
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