The level of navigation precision offered by RNP represents a revolutionary improvement over traditional methods. These results are obtainable from unaugmented GPS signals making it possible to create precision approaches to any location on the planet with proper equipment on the airplane.
Data collection for an RNP trial in Brisbane, Australia is revealing an aircraft track-keeping standard deviation of 20 meters (note: the 737-800 aircraft participating in the trial has a wingspan of 36 meters).
