This example SysML model offers an in-depth depiction of a package delivery UAS (Unmanned Aerial System), incorporating all standard SysML diagrams and following the Object-Oriented Systems Engineering Methodology (OOSEM) with a recursive package structure. The model covers conceptual, logical, and physical levels of the system, highlighting several MagicDraw-specific features, such as the use of acronyms, to facilitate ease of understanding and navigation. It provides a detailed example of system modeling for unmanned aerial vehicles (UAVs), illustrating best practices in capturing system requirements, behaviors, and architectures, and is ideal for those seeking to explore the application of SysML in the aerospace and delivery sectors.