vortex ring state

Hello everyone, I'm not sure how to address this topic, since I would love to gather some true insight from this incident rather than starting a speculation brainstorm. Also I'm really not looking for advice; it is clear that this incident was self-induced, and as long as I don't repeat the...

Recently, I've seen some instances where pilots have reported that their UAVs have fallen from the sky for no apparent reason. And that got me thinking... I was wondering if some of these instances are really the result of VRS (Vortex Ring State). This is a phenomenon that the more experienced...