Here`s one I `prepared 60 yrs ago;one t/r blade `let go`,followed a millisecond later by the rest and t/r g/box;about 50 lbs x30 ft moved the Cof G to somewhere in the nose,needing cyclic on the back stop...almost..shut it down,pointing at a hilltop-hole in the jungle ,landed near top but on a 30* upslope,burst a mainwheel tyre,which stopped it rolling back!