On Sun, 19 May 2013 11:19:48 -0700, drguyacheson wrote:

I am also very interested in the Butterfly vario. I have some questions
that the Butterfly people have not answered for me yet.

I fly with a mechanical vario on the T.E. probe and my 302 with
electronic compensation. I wanted two independent systems and I was
having difficulties with the 302 and mechanical varios on the same T.E.
probe line.

Feeding both a capacity-based vario and a pressure sensing vario from the
same TE probe is known to cause problems if the T-junction is close to
both instruments. Moving the T-junction away from the panel, i.e. using
long connections between the T and the two varios fixes it. There's a
note on Mike Borgelt's website saying that if the T-junction is either
under your seat pan or behind it the problem should disappear.

What issues could be anticipated with the Butterfly vario and a
mechanical vario (Winter or Sage) sharing the same T.E. probe?

As described above.


--
martin@ | Martin Gregorie
gregorie. | Essex, UK
org |