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Thought l would add my 5p worth to this discussion.
I have synthetic vision WITH attitude information as l have a Dynon D10A and the Garmin 795. They are 12" apart and provide all the information (l hope) to get me out of trouble during involuntary IFR. In my circumstances the 3dV display is best with the tapes set to off as there is conflicting info between the two devices.
The 795 replaces the 7" device that l previously had which ran either PFMS or (more usually) SkyDemon. However, my backup unit (a 5" AWARE screen) is now going to be used with SD/PFMS. If nothing else l love 'playing' with the pseudo ILS on SD.
A slightly worrying issue arose at the airfield yesterday - at Andrewsfield (AMSL 286ft) but the Garmin 795 placed me (and the 3DV plane at 360ft), not a lot of use in ground level IFR. But the GPS screen stated an accuracy of 57ft (which l always though related top LAT/LONG). I acknowledge that 3DV using GPS derived data is not going to be precision approach accurate.
John Wighton
Europa G-IPOD
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