![]() ![]() More rarely, INS/IRS and era-related instruments : self-contained.GNSS (including GPS) : satellite-based (in conjunction with augmentation systems).¶ RNAV Navigation Methods ¶ Principles of Area NavigationĪs we said in the introduction to this document:įlying RNAV is the ability to compute aircraft's position using various sensors: by an alphanumeric name code: 2 letter representing airfield ICAO code and 3 numbers (example RS604).by a 3 letter ICAO identifier if located with a ground based NAVAID for that station (example KIK).by a 5 letter unique name code (example KOKOS).RNAV is an instrument-based navigation method that leads to fly from a waypoint (geographic point inside an airspace) to another waypoint directly.Ī waypoint is a specified geographical location used to define an area navigation route or the flight path of an aircraft employing area navigation.Ĭontrary to conventional navigation based on NDB and VOR, RNAV does not expect fixes to be defined in relation to conventional means, but rather by geographical coordinates.įigure: Red path is area navigation, black path is conventional navigation.Ī waypoint is defined as a geographic coordinate (in WGS84) and is identified either: The aircraft using area navigation should be able to fly to any position on earth without NAVAID references. RNAV can then be summed up as the ability of an aircraft to navigate, computing change of tracks from one point to another, using only coordinates. ![]() The position of the aircraft is known using various sensors that can compute its position. The first references to area navigation, shortened as RNAV, can be found during the years 1960s where its development has been started. The ICAO definition of area navigation is: A method of navigation which permits aircraft operation on any desired flight path within the coverage of ground-based or space-based navigation aids or within the limits of self-contained aids, or a combination of these. ![]()
0 Comments
Leave a Reply. |