RNav/GPS
A GPS approach requires GPS to be available and be used.
RNAV approaches can be flown without GPS, as long as other means of area navigation ensure the required position accuracy (normally 0.3 NM if RNAV stand alone, 0.5 NM if NDB or VOR overlay).
That would normally be DME/DME by means of an FMS.
RNAV approaches can be flown without GPS, as long as other means of area navigation ensure the required position accuracy (normally 0.3 NM if RNAV stand alone, 0.5 NM if NDB or VOR overlay).
That would normally be DME/DME by means of an FMS.
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That would normally be DME/DME by means of an FMS.
Last edited by aterpster; 18th Nov 2012 at 23:04.