The goal of the work is to research the case of isotopy of spacecraft compartments in the problem of on-board equipment location. A definition of this engineering topological property is given in the article. The most frequently used spacecraft compartment hull shapes and various compositions of their casings are considered. https://www.bekindtopets.com/flash-offer-FreeTress-Equal-Headband-Full-Cap-Wig-HARMONI-amazing-save/