Predicted path selection system and method for hazard coding in selectively constrained aircraft control systems

A system for selecting a predicted path, the system comprising:

• a flight controller controlling actuators coupled to control surfaces and the propulsion systems of an aircraft and operable to cause the aircraft to follow an actual path, the flight controller receiving a first input describing a planned path and a second input indicating a constraint on the actual path in at least one direction, the flight controller operable to selectively cause the aircraft to conform the actual path to the planned path or a constrained path corresponding to the constraint;
• a flight planner operable to calculate a planned path and input the planned path to the flight controller;
• a surveillance system operable to detect locations of hazards and produce a symbolic display comprising relevant symbols corresponding to hazards near a predicted flight path and non-relevant symbols corresponding to hazards away from the predicted flight path, the surveillance system being further operable to detect activation of the constraint and to compare a current aircraft location to the constrained path upon detecting activation of the constraint, and displaying hazards located along the planned path as relevant when the aircraft location is beyond a tolerance distance from the constrained path.