On Sat, 10 Sep 2005 17:30:27 GMT, Tim wrote:



The new RNAV (RNP) criteria presume a complete loss of GPS for the
missed approach. If the airspace/obstacle environment will permit a
heading or track to a VOR missed approach in the event of loss of GPS,
then no backup is required. If the missed approach areas are too tight
then dual or triple IRUs are required.


Where is that requirement spelled out for Part 91 operators using GPS
(single-sensor)? I don't see it in AC90-100, but that does not deal with
missed approaches.


Ron (EPM) (N5843Q, Mooney M20E) (CP, ASEL, ASES, IA)