This was a late evening flight a few years ago when my 1st drone, Syma x8, lost signal and began plummeting to the ground (in the dark ) BUT please don't berate me! This was a long while ago, before Gatwick, before the Drone code and everything else that has happened since. In any case I was still flying LOS (it had bright LED lights) and below 500 feet. and I was at least 50M from anyone's property. PS I am CAA and BMFA legit and wouldn't dream of doing anything like this now! ) .