What is dynamic rollover?

Dynamic rollover refers to the situation in which a helicopter begins to roll around one of its skids. This phenomenon typically occurs when a helicopter is in a low-speed hover or during a takeoff or landing. If one skid encounters an obstacle or the ground unevenly while the helicopter is not fully airborne, the helicopter may pivot around that skid. This movement can gain momentum very quickly, leading to a dangerous situation where the helicopter rolls over entirely.

Understanding dynamic rollover is vital for helicopter pilots because recognizing the conditions that can lead to this event allows for better risk management and operational safety. Pilots must be aware of how to avoid situations where one skid can lose contact with the ground, thereby minimizing the risk of dynamic rollover during flight operations.