Dynamic rollover is an uncontrolled lateral rolling motion that occurs when a helicopter pivots around a single point of ground contact (such as a skid or wheel) instead of its center of gravity. Once it starts, the rotor's thrust vector actually contributes to the roll, making recovery via cyclic control impossible if a certain angle is exceeded. Core Requirements Three conditions must exist simultaneously for dynamic rollover to occur: Pivot Point: A portion of the landing gear (skid or wheel)