Since LX7007/LX8000/C302/ILEC vario/flight directors are fitted to EASA
CofA sailplanes by major manufacturers (using a pitot connection common
with the ASI) then it must be assumed this is permissible.

At 12:15 03 November 2008, Simon Taylor wrote:
At 10:45 03 November 2008, Peter Purdie wrote:
Since there is no certification standard for electronic variometers,
they
can't be certified. This would be a problem if the statement below
was
true, fortunately it isn't.

Only instruments required by the type certificate (normally ASI,
Altimeter
and Magnetic compass) must be certified, others must be installed in a
safe
manner and the installation signed for by an approved engineer.


That's good to hear - but what about variometers with a connection to
the
pitot (airspeed sensor?)