The work highlights the issues of operation of a replaceable caterpillar propeller for a tractor of traction class 5. an analysis of the design of wheeled-caterpillar mobile power facilities is carried out. its positive and negative aspects during operation are described. its detailed justification is given in comparison with wheel propellers. https://countryscenesaddleryandpetsuppliers.shop/product-category/double-t-barrel-saddle/