This paper introduces a novel protocol for managing low altitude 3D aeronautical chart data to address the unique navigational challenges and collision risks associated with populated urban environments. Based on the Open Geospatial Consortium (OGC) 3D Tiles standard for geospatial data delivery. the proposed extension. called 3D Tiles Nav. https://herbsdailyes.shop/product-category/medical-and-ambulatory-supplies-body-pressure-relief-and-positioning/