Ernie
While the gps derived instrumentation that is available in a Gamin handheld certainly looks sexy, I have tried to do instrument approaches with one (296) with our IAR-823. The instruments just react very slowly for a reasonably high performance airplane. It is better than nothing, but... I have shot instrument approaches with the Dynon EFIS and can get to minimums 10 out of 10 times, with the 296 I can do half of that on a good day.
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California dispensary