I just read this post... http://diydrones.com/forum/topics/waypoints-and-failsave CAA rules apparently say... (as of Feb. 2012?) http://www.caa.co.uk/docs/33/CAP658.PDF Any powered model aircraft fitted with a receiver capable of operating in failsafe mode should have the failsafe set, as a minimum, to reduce the engine(s) speed to idle on loss or corruption of signal.   Because of a recent po…