@captain744 said in RNAV Approach w/ PA-28R?:
@Martyn if the plane is equipped with the garmin 530 and set for an RNAV approach will the plane then be able to automatically follow the RNAV glide slope as well as the localizer when using the GPS mode?
Does a garmin 530 have/use its own built in vertical/lateral control system or is it still coupled to the aircraft’s autopilot system.
It's still limited by the autopilot which only provides roll control (apart from the hidden altitude hold clickspot) so unfortunately it won't track the glideslope automatically. You'll need to use the navigation hold mode to track the RNAV 'localiser' and then manually control pitch to track the glideslope.