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Arriving aircraft have to line up with runway headings whether or not they use RNAV, so flight paths will not change under an RNAV approach process.
I ended up shooting an RNAV approach into Madison and calling it a (long) day.
The GDC-31 takes full advantage of the 430W approach functionality and will steer the airplane around a procedure turn or RNAV approach with aplomb.
New features will include an option for a second flight management system, a video interface for displaying enhanced vision systems on the multifunction displays, en route vertical navigation coupling in addition to the currently enabled RNAV approach glidepath coupling, a vertical situation display and RNP 1.0 required navigation performance.
If you want to circle to land on Runway 17 at Asheville, both procedures offer the same minima: 2800 feet msl is your Category A MDA, presuming you can identify OBOVE when using the localizer-only procedure, and the same MDA is available when using the RNAV approach. The only real caveat harks back to an airplane with only a single working VOR receiver and no glideslope: Without identifying OBOVE, you'll be stuck with a 3100-foot circling MDA since there's no non-GPS approach option for Runway 17.
Instead, the reported 800 foot ceiling inspires you request an RNAV approach to Runway 36 with a circle to Runway 27.
This time, however, I had loaded the runway's RNAV approach into my GPS navigator and had much better situational awareness.
Which was easier partial panel, the DME arc to the ILS or the RNAV approach? From what altitude did you descend on glidepath/ glideslope?
If flying into KIMM, I would select the RNAV to RWY 18 instead of the VOR with GPS any day since with the RNAV approach I also get a glideslope.
At 1006:16, the pilot reported losing visual contact with the airport and requested an RNAV approach. The airplane did not maintain its heading and altitude assignments during the subsequent vectoring, and several corrections were provided by ATC.
The #2 GPS lost signal during an RNAV approach, generating a warning on the Garmin G1000.