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A simple diagram showing the main difference between traditional navigation and RNAV methods. Area navigation (RNAV, usually pronounced as / ˈ ɑːr n æ v / "ar-nav") is a method of instrument flight rules (IFR) navigation that allows an aircraft to choose any course within a network of navigation beacons, rather than navigate directly to and from the beacons.
RNP procedures were introduced in the PANS-OPS (ICAO Doc 8168), which became applicable in 1998. These RNP procedures were the predecessor of the current PBN concept, whereby the performance for operation on the route is defined (in lieu of flight elements such as flyover procedures, variability in flight paths, and added airspace buffer), but they resulted in no significant design advantages.
An example of this is the term "P-RNAV" (Precision RNAV) that Europe still uses (2019), which elsewhere is called "RNAV 1". The terms RNAV and RNP was earlier used with little functional difference. RNP required a certain level of performance but made no attempt to define how it was to be guaranteed. The two upper chart strips show the current ...
An "approach plate" depicting an instrument approach procedure for an ILS approach to Tacoma Narrows Airport in the United StatesIn aviation, an instrument approach or instrument approach procedure (IAP) is a series of predetermined maneuvers for the orderly transfer of an aircraft operating under instrument flight rules from the beginning of the initial approach to a landing, or to a point ...
RNAV routes are depicted in blue on low and high altitude charts produced by the FAA's Aeronautical Navigation Products. In addition to the published RNAV routes, if radar monitoring and traffic flow allow, air traffic controllers may approve random RNAV routes for IFR flights.
A STAR is a flight route defined and published by the air navigation service provider that usually covers the phase of a flight that lies between the last point of the route filed in the flight plan and the first point of the approach to the airport, normally the initial approach fix (IAF). Hence, a STAR connects the en-route phase with the ...
An approach plate for the ILS or LOC approach to runway 14L at Cologne Bonn Airport, Germany.. Approach plates (or, more formally, instrument approach procedure charts) are the printed or digital charts of instrument approach procedures that pilots use to fly instrument approaches during instrument flight rules (IFR) operations.
RNAV (sequence of relevant waypoints): THR 22 / At 500 ft AMSL turn left / EH023 (MAX 220 KT IAS) / EH027 / PAM / ANDIK [note 2] Vertical: Cross ANDIK at FL 060 (or above if instructed by ATC) After departure: Contact Schiphol Departure 119.050 MHz when passing 2000 ft AMSL. Climb to maintain: FL 060