Here's a video I found by a knowledgeable and skilled pilot. He demonstrates VRS, what causes it and how to avoid it. Most remarkable is his demonstration of how to get out of it if it happens to you. I knew about fixed wing stall and didn't fully realize that VRS is the copter version of stall. If the acronym's meaning were changed to Vortex Ring Stall it would be more apparent. I've read on this forum that it isn't a big problem with P3's, or maybe not even a problem at all. But it was good tech information and I think anyone who likes to know how our birds 'fly' would be interested. Edit: Darn! I just 'searched' the specific video URL and I see that this video has been mentioned before. Previously I had searched VRS and not seen it. Sorry for the rehash.