Thanks for the heads-up on those. I was figuring on about $2K, but $4K
would mean asking the other 4 owners to kick in $1000 for an item that
they won't use. For a 172, it's probably just as good then to get a
manifold-driven backup vacuum. Too bad the electronic AI's are not
certified for IFR (the $1500 ones, not the $6000 ones.)

Newps wrote:


Dan Truesdell wrote:

the few short forays into the clouds lead me to investigate an
electric AI. Although we were only in the bumpy stuff for a few
minutes at a time,


Now that the FAA has finally relented and allowed you to throw away your
turn coordinator and get a second AI I went and talked to my local
avionics shop about the RC Allen electric AI that I see advertised for
about $1800. They said don't bother as 90% of them come back because
they are so horribly built. They told me to get the reliability of a
vacuum AI it's gonna take about $4000.



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