Patent attributes
An aircraft-based runway overrun awareness alerting system (ROAAS) for an aircraft primary flight display (PFD) is disclosed. In embodiments, the ROAAS is embodied aboard an aircraft and tracks the position and heading of the aircraft. Further, the ROAAS tracks the energy state of the aircraft as it approaches a runway for landing. Based on the current energy state, as well as the runway parameters, the ROAAS predicts a landing point for the aircraft along the runway. Based on this landing point, as well as the current energy state, the ROAAS determines the current likelihood of runway excursion (e.g., that the aircraft will not have sufficient runway remaining to decelerate or stop) and displays this likelihood as a dynamic graphic element not integrated into any other instruments or components displayed by the PFD.