https://dair2.com/ 2026-08-01 monthly 1.0 https://dair2.com/media/dair-passive-overview-v4-poster.jpg DAIR Passive — System overview A 60-second visual overview of onboard RF, GNSS and neighbour-observation fusion for coordinated drone operations. https://dair2.com/media/dair-passive-overview-v4.mp4 60 yes