Near Miss Case Study
The FAA Safety Team (FAAST) recently published a Case Study of a near miss between a drone and an emergency medical helicopter in El Paso, Texas. In this case, a drone at ~400′ AGL had a helicopter pass directly underneath it with <100′ vertical separation.
https://medium.com/faa/tips-to-avoid-collisions-between-drones-and-helicopters-c3825ae417d9
Have you ever had a near miss with a manned aircraft or other UAS?