Area navigation

Surface navigation, short RNAV (English Area navigation, initially random navigation ), referred to in aviation navigation procedures for IFR flights, which determines the route based on multiple waypoints ( Waypoints ). Fixed beacon on the ground must not be served because only the geographical coordinates are determined at the waypoints. The optimized routes of RNAV allow more flexibility, more efficient use of airspace, increased airspace capacity, a smaller change effort ( construction costs, etc.) and therefore a reduction in costs.

The technical implementation is carried out with various sensors. In addition to VOR / DME, DME / DME and INS / IRS especially GNSS is interesting because with this sensor an affordable and accurate solution is possible.

B -RNAV ( Basic RNAV ) requires a position determination of ± 5 NM, P -RNAV (Precision -RNAV ) of ± 1 NM for 95% of the flight time.