Does your glider perhaps have an old fashioned capsule total energy
compensation system on the mechanical vario? A leak in the diaphragm in
that would account for the symptoms you describe.

At 00:17 02 August 2015, wrote:
My airspeed indicator seems to have devolved a leak and pitot pressure
is
=
causing readings on the old uncompensated winter vario. When I blow on
the
=
pitot tube and disconnect the static line of the airspeed indictor you
can
=
hear air moving through the static line from the airspeed indicator.

Has anyone head of this before?=20

I'm guessing replacing the airspeed indicator is the solution.=20

Feedback would be great.=20

Nick