A three month public consultation by Gatwick Airport is taking place to implement a system called P-RNAV, or Precision Area Navigation. P-RNAV is a navigation specification that uses the benefits of improved airborne navigation capabilities to require a track-keeping accuracy of ±1 nautical mile (compared with ±5 nautical miles for the next best standard) for at least 95% of the flight time, together with high integrity navigation data requirements. The system, which has been trialled on a limited basis at the airport for 6 years, utilises the full navigation capability of modern aircraft and improves the track keeping for departing

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