Notes Concerning Point to Point Procedures
Since all three of the point-to-point procedures achieve the same goal, the manner in which a procedure determines the route taken is what distinguishes it from the others. The following table displays the characteristics of each point-to-point procedure, to aid in selecting the best procedure for your need. A "point-to-point" procedure that is the first procedure of the mission will have only one point, which is both the start and end of the procedure.
Procedure Characteristic | Enroute | Basic Point to Point | Terrain Following |
---|---|---|---|
Uses Point-to-Point Navigator | X | X | X |
Uses Advanced Terrain Following algorithm | _ | _ | X |
Speed and altitude profile determined by aircraft performance models | X | _ | _ |
Direct, unconstrained climbs and descents | _ | X | _ |
Climbs and descents may be immediate or delayed till procedure end | X | _ | _ |
Employs Level-Off Maneuver when necessary | X | _ | _ |
Speed at procedure end determined by steady state Cruise model | _ | X | _ |
Air speed determined by Terrain Following model | _ | _ | X |
Turn radius computed by Acceleration model | X | X | X |
Turn radius may be relaxed | X | X | X |
User may specify course at waypoint | X | X | X |
User may specify flight path angle at waypoint | _ | X | _ |
Accepts altitudes as terrain offsets | _ | X | X |