![]() ![]() If the stopping distance on a WET runway becomes longer than the available runway length, the system triggers an amber message on the PFD “IF WET: RWY TOO SHORT”. On Airbus A380, A330 and AIRBUS A-320 family, ROW continuously calculates two stopping distances, the stopping distance on a DRY runway and the stopping distance on a WET runway. ROW stopping distances are based on the same principles as the Airbus In-Flight Landing Distances. ROW becomes active at 500ft and remains active throughout short-final, the flare and touchdown until transition to ROP. ![]() ROPS automatically detects the current landing runway using the runway database. The source of the runway database may be the Terrain Avoidance and Warning System (TAWS) or the Onboard Airport Navigation System (OANS). ROPS is also connected to a runway database. The system has access to the parameters which affect an aircraft’s stop distance, such as: If at any point the system detects there is a risk of a runway overrun, flight deck alerts are generated to help the crew in their decision making. ROPS is an Airbus system designed to continuously calculate whether the aircraft can safely stop in the runway length remaining ahead of the aircraft. The ROW function generates alerts which incite the flight crew to perform a Go-Around whereas the ROP function generates alerts which incite the flight crew to apply available deceleration means. The Runway Overrun Prevention System (ROPS) is made up of two sub-functions: runway overrun warning (ROW) and runway overrun protection (ROP). ![]()
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