I have been flying with two AV-30C instruments in my 175 since they were certified.
I am a fan, for several reasons. Installation is easy, they are FAR less expensive than some iPod the options, but at least a fair bit cheaper than some.
The newest version will have an onboard magnetometer. They are compatible with virtually any gps unit, either panel mount or portable, for course information.
I got rid of all the junk associated with the vacuum system.
These units can display a plethora of data points: Attitude indicator, DG, IAS, TAS, displays various speeds, Angle of attack, barometric pressureetc, etc. if you install an outside air temp probe, the AV 30 displays not only OAT, but a direct readout of Density Altitude. Operating at high DAs regularly, that feature alone justified the installation.
For about $1800, that’s a really sweet deal. Lots of bang for the bucks,
I’d go there again in a heartbeat. I now have purchased three devices from uAvionix, and the company has treated me very well. Their early Skybeacons had some issues, which they sorted out and replaced the unit without argument.
MTV