Funded under NAVISP Element 2, the headline goal of this 11-month project is to demonstrate a proof-of-concept implementation of a hybrid 5G/GNSS-based positioning system. The project will research, develop and draft the preliminary architecture definition, use cases and requirements for the eventual end-to-end system drawing upon the relevant expertise across the consortium. Once concluded the team will develop and test a proof of concept system based on a subset of the complete system requirements, concluding in a real-world demonstration with UAV flight leveraging publicly available 5G networks.