2Rnav or Not 2Rnav
Thread Starter
Joined: Jul 2002
Posts: 69
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From: A Town Near You
2Rnav or Not 2Rnav
The VOR is "off the air"...which happens to be the transition/via IAF for the STAR.
Using IRS navigation can you still proceed "drct to" via FMS and conduct the STAR via RNAV? (nav accuracy-high/positive)
If "so", then can all RNAV equip'd a/c fly RNAV arrivals/dep. without the assoc. navaids being available (with a high and positive nav. accuracy)
Using IRS navigation can you still proceed "drct to" via FMS and conduct the STAR via RNAV? (nav accuracy-high/positive)
If "so", then can all RNAV equip'd a/c fly RNAV arrivals/dep. without the assoc. navaids being available (with a high and positive nav. accuracy)
Joined: May 2001
Posts: 1,424
Likes: 34
From: London,England
Well in theory we can but it is my understanding that no UK registered aircraft are allowed to fly pure RNAV arrivals (ie. a route made up of points that are not defined by a radio aid) and approaches that take the a/c below sector safe. Geneva now has such a procedure and we don't fly it unless it's VMC.
It's less to do with the accuracy of the equipment than with the accuracy and integrity of the database and the information used to produce it, don't know what other countries allow.
It's less to do with the accuracy of the equipment than with the accuracy and integrity of the database and the information used to produce it, don't know what other countries allow.
Joined: May 2000
Posts: 3,204
Likes: 2
From: Seattle
In the US many Arrivals and Departures are now "overlay" procedures where FMS waypoints overlie fixed navaids. In airplane with the proper equipment and certification can legally fly the overlay procedure even when the navaid is out of service.
However, some carriers have authorization to fly FMS arrivals, but not FMS/GPS final approaches (navaid still required).
However, some carriers have authorization to fly FMS arrivals, but not FMS/GPS final approaches (navaid still required).
Joined: Sep 2000
Posts: 614
Likes: 0
From: UK
Doesn't everyone (from Britain anyway..) use RNAV in and out of Faro??
Also, into Malaga, the Martin VOR has been out of service, replaced by point BAMAR. Last time I went, we went to BAMAR, but our box of tricks in the cockpit used MAR VOR... Guess you can use a point that's overlaid...
Also, into Malaga, the Martin VOR has been out of service, replaced by point BAMAR. Last time I went, we went to BAMAR, but our box of tricks in the cockpit used MAR VOR... Guess you can use a point that's overlaid...
