| RNAV brought important capabilities to aviation navigation. RNAV aircraft can fly directly between flexibly and logically positioned waypoints rather than flying to/from ground-based radio beacons or relying on vectors from air traffic control. Maneuvering directly to distant waypoints rather than zigzagging over a scattered course of ground-based radio beacons significantly improves efficiency. RNP can be seen as the evolution of RNAV. It increases the precision of aircraft positioning using GPS. It allows aircraft to stay on track through turns using safeguarded RF legs. It monitors navigation performance and alerts the crew if tolerances are exceeded. These enhancements and the resulting financial, operational, safety and environmental benefits make RNP the logical successor to RNAV. | 
