In case you haven’t heard about this, it’s quite a thing right now. It's not clear what kind of rig this was, but regardless, I think it should be of interest to folks here on the FF forum. http://www.cbc.ca/sports/olympics/winter/alpineskiing/marcel-hirscher-hit-drone-1.3377150 I've watched all the videos I've found (from 3 different angles) several times and here's what I can tell... The copter was clearly falling sideways when it hit the snow It was a large-ish 4-boom (probably X8) machine It had retracts which appeared to be retracted, implying to me that the copter was not in landing profile The speed and angle at which it hit the snow would indicate a catastrophic loss of power The news reports said the copter was being operated by the broadcast crew As others have said, I doubt the operator is going to tell all. But maybe more information will come forward.