area navigation


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area navigation

[ēr·ē·ə ‚nav·ə′gā·shən]
(navigation)
An aircraft navigation system in which radial and distance information from a Vortac station or distance information from two or more Vortacs is used to fix aircraft position, so that navigation is not restricted to airways or direct routes between stations. Abbreviated RNAV.

area navigation (RNAV)

A method of navigation that permits aircraft operation on any desired flight path within the coverage of station-referenced navigation aids or within the limits of the capability of self-contained aids, or a combination of these (ICAO). RNAV equipment can compute the airplane position and actual track and ground speed and then provide meaningful information relative to a route of flight selected by the pilot. Typical equipment will provide the pilot with distance, time, bearing, and cross-track error relative to the selected “To” or “active” waypoint and the selected route. Present-day RNAV include INS (inertial navigation system), LORAN (long-range navigation), VOR/DME (very high frequency omnidirectional radio-range/distance-measuring equipment), and GPS (global positioning system) systems. Modern multisensor systems can integrate one or more of these systems to provide a more accurate and reliable navigation system. All these systems have different levels of performance. Area navigational equipment can thus satisfy different levels of performance (RNP, or required navigational performance) and in this manner provide enhanced navigational capability.
References in periodicals archive ?
Indian carrier Jet Airways has announced that it has received regulatory approval for the use of RNAV1 (Area Navigation) across its fleet of aircraft.
"This is an interim measure to ensure that airport access is maintained until the air operators using that airport are equipped with Area Navigation (RNAV) capability," says Jeff MacDonald, Manager, ANS Plans & Program Coordination, NAV CANADA.
Within the area of ??responsibility there are 86 air traffic service routes with a total length of 36,563 km, of which: 20,600 km are air routes open for international flights, 11,903 km are area navigation routes open for international flights, 4,060 km are domestic air routes.
'In other words, the new system relies on satellites and the compatible equipment aboard airplanes like area navigation [RNav], and no longer on ground-based navigational aids [NavAid], like VOR, ADB, ILS or radars,' Borja added.
IATA is pushing Latin American countries to accelerate the introduction of area navigation (RNAV) routes, with a particular focus on Uruguay and Venezuela.
The change will also move the FAA towards meeting its goal of establishing an improved Wide Area Augmentation System (WAAS)-enabled Area Navigation (RNAV) route structure throughout Alaska.
A new study looking at the introduction of future area navigation (RNAV) requirements in ECAC airspace seeks to answer some of the questions concerning airspace users and navigation service providers.
The compatible equipment installed in modern cockpits is called RNAV, or Area Navigation, generally referring to navigation without the need for going from one navaid to another.
Before area navigation, all airways and procedures were designed expecting us to pass over the fix, suddenly realize that fact, and then turn to intercept the outbound course.
Area navigation (RNAV) procedures increase the number of departure routes and allow air traffic controllers to disperse aircraft more efficiently, according to the FAA.
The first change intends to improve connectivity between Solent airports and the Channel Island Control Zone (CICZ), through changes to the existing RNAV (area navigation) routes.