1. Field of the Invention
The present invention relates to avionics systems, and more particularly, to systems and methods for providing an in-trail procedure (ITP) speed director.
2. Description of the Related Art
Current ITP algorithms are based on calculations of ITP distance (lateral distance to crossing points) and the ground speed (GS) of all the aircraft in the area of interest. Such current ITP algorithms determine whether ITP is available or not and provide the flight crew with an indication of availability for ITP, e.g., ITP Available or ITP Not Available. If ITP is available, the crew may request an altitude change for safety, efficiency or comfort reasons. If ITP is not available, current ITP algorithms provide an estimated time until ITP is available. Depending on relative geometry and airspeed between ownship and other aircraft, this could be a substantial time.
Thus, a need exists for improved ITP systems and methods which overcome these and other problems.