In this article we propose a framework for a hierarchical model for cooperation between unmanned airplanes in large groups. We argue that the swarm approach to cooperation between a large number of mobile robots is ineffective when robots can be equipped with efficient communication. precise location hardware and with complex control algorithms. The proposed model. https://www.countryscenesaddleryandpetsuppliers.shop/product-category/fort-worth-western-hat-copyright-various-colours/