Ok done some testing . Mission placement all done . All set up . Correct lights etc . Motors off , press go .. All good flys mission and I land .... Now having done a normal flight , manual all good , land turn off .... Decide to start up and fly agan .... Start motor up .. Change mind switch to gs and do way points as before . ( motor still running )All ready ,select go ..... Phantom revs doents take off just keels over and attempts to fly to way point ... Forward props dig into grass ... Failed .stopped engined .... Only guessing here ... Don't have engine started before you start mission . And would be good idea to have 1 position above the start point , thinks this should be a must to start any mission ..