Static Rollover is simply the tilting of the aircraft such that the CoG moves past the line of contact (ie skids or wheels) and thus will fall over. Happens to cars and other vehicles as well.
Dynamic is the rate of movement of the CoG and the aircraft's control force being unable to stop it before it reaches the critical angle, thus rolling on its side. Can happen on flat ground with a skid being caught and pilot applying full power to 'yank' it off the ground. Has happened on ships decks when one chain left on and aircraft tries to pull mother into orbit (normally get wet trying this one). Can happen on landing if having excessive sideways vector and catching skid on something.
It can also be may worse by the tail rotor force acting in the way you are trying to roll it. Funnily enough, most cases I know of are the result of poor sloping ground technique and rolling the aircraft upright too quickly and rolling the aircraft into the upslope.
Recovery action (noting a nice steady lift off should stop it from occurring) is to first lower the collective as this reduces the size of the rolling moment. Don't throw it to the floor otherwise the aircraft may roll over the other way due bouncing and then the static rollover might occur. Using the cyclic alone will not save you as the rate of roll is beyond the cyclic in the first place.
ToT, I wouldn't recommend moving the cyclic around on the stops as it may damage the mast stops/droop stops. At least I wouldn't be game as they make a hell of a chatter.
Its sunny in WA
