As I listen to the concerns about ARNAV and soon hope to be a depositor for a Lancair
If you do deposit on the Lancair I would recommend you opt for the 10.4" Avidyne, not so you can see the a non current map as with ARNAV, but so you can get current see you position mapped on current sectionals, enroute IFR charts, and approach plates. A big step toward the paperless cockpit.
I saw your post earlier about the Avrotec/Avydyne display and almost chimed in then, but now I figure I might as well.
I would be a little cautious before getting the Avrotec display. Why? Primarily because I haven’t really seen any other airframe companies besides Lancair using it. And I haven’t “felt” a big demand for that display in the retrofit market either.
IMHO, it will be hard for ANY company (Arnav, Avrotec, which are both 10.4" displays) to succeed with these super big screens in the near term. New airframe manufacturers (Lancair, Cirrus, etc.) will probably think they’re a good idea - because they are. But the real VOLUME is in the retrofit market, or maybe even (for now) with Cessna & New Piper, etc. And all of those markets require “normal” avionics sized boxes.
Especially after getting essentially burned by the Arnav (I agree with most of Marty’s comments on engine monitoring below, although I’m maybe a little more willing to give them some time to improve the product!), I would not want to necessarily go buy an Avrotec, only to have them go out of business [or be slow to add new interfaces/features].
IMHO, I would probably opt first for an MX20 (or, if you don’t like that, maybe the Bendix King MFD, or maybe even a Garmin 530 or the Avidyne Flightmax [which is different than the Avrotec running Avidyne s/w]), since they have fairly good market acceptance and thus will probably be around to support their products far into the future…
Just my $0.02 worth… see ya around GAI!