On Monday, July 27, 2015 at 11:24:51 AM UTC-7, Greg Delp wrote:
On Monday, July 27, 2015 at 2:08:57 PM UTC-4, wrote:

The artificial horizon is FANTASTIC. On all the time. Cannot be tumbled. I spent part of yesterday thermalling using just the artificial horizon and it was fairly easy to stay fully coordinated and keep the speed under perfect control.


I don't have the artificial horizon option yet but plan to at some point. Does it have a 14 day lock out for US contests like the other LXNav systems have? The manual wasn't clear on that point.

According to the SSA website, the only AHRS with a lockout approved for US competition use is the Air Avionics (Butterfly). Perhaps the list is out of date?

I saw an S80 for the first time a couple of weeks ago, seems like a nice instrument. With the same capability, it is about the same price as the Butterfly. The most obvious differences to me (I have flown with the Butterfly for 2 years now) is that the S80 has a real Flarm screen but lacks the inertial instantaneous wind and Vertical Airmass Movement of the Butterfly. Other capabilities seem similar, if differently implemented. And I guess you don't get an IGC flight recorder as you do in the Butterfly?