On Monday, November 25, 2013 10:47:16 AM UTC-8, Pam Howarth wrote:
Any Butterfly vario users out there care to share their experiences?

I'm particularly interested in whether the wind information is reliable and

whether the A/H is stable and usable? (Not too bothered about the

Navigation or Flarm functions as better solutions exist)

Dave Walsh

Do NOT fly IMC in icing conditions with this instrument near/at/below freezing levels. The ISU takes pitot/static info for the A/H and unless you have pitot heat, the A/H will NOT be reliable. This was confirmed with the Butterfly folks and I saw it first hand. They are apparently working on a fix.