On Wed, 29 Jan 2020 05:33:09 -0800, Jim Hogue wrote:

Hello, everyone,

As most of you following this string are probably aware, a new group has
been formed for the Air Avionics Butterfly Vario system. I suggest that
all future discussion on the Butterfly be done there. It is "Butterfly
Vario - Air Glide Display S" Google Group

I have bought a Butterfly Vario for my ASH-26E, looking forward to
installing and using it this season.

Thanks everyone for all the great input.

Cheers,
Jim J6




On Thursday, January 23, 2020 at 7:39:31 AM UTC-6, Jim Hogue wrote:
Any suggestions? Either currently available or coming in the near
future (next year or so) would be ok, I am not in a rush. Prefer it
would fit in one 57mm hole.

I take care of navigation and tasks with other standalone devices (full
on OpenVario with its own vario/STF sensor board, and a Kobo backup) so
I don’t really need any nav functions. Above all I want the best total
energy and gust compensated technology available, the best to allow me
to understand airmass movement while cruising across the full speed
range. I want MacReady speed-to-fly function (although I use that as
advisory information only, I don’t aggressively dolphin fly...). I also
need climb/cruise and airmass awareness audio functionality of course,
head-out-of-the-cockpit being best.

I fly an ASH-26E, and I would prefer a system that can work off just
pitot and static, avoiding the vertical fin mounted TE probe (which
gets hammered during engine runs). This is because thermalling during
powered climb can be important to me when flying out of high density
altitude airports. But if using the TE probe gets me significantly
better airmass awareness in cruise, I would take that.

I am attracted to the FLARM voice warnings that the S8/S10 units give,
but I would do without this in order to get the best airmass awareness.

My OpenVario gives me a thermalling assist graphic which seems to work
great, but if the new system offers improvement here I would like that
also.

Please offer you experiences and knowledge here. Thanks in advance!

What's its NNTP name?


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Martin | martin at
Gregorie | gregorie dot org