Non-TE probe compensation

On Monday, January 26, 2015 at 7:47:59 PM UTC-7, Ale.L (RL) wrote:
Hi folks!

Has anyone had any experience with non-TE compensated vario systems? From what I gather there're a few options out the

* There's the varios (and flight computers with integrated varios) like the CAI 302 and LxNav V7 that have electronic compensation as an option. Any others out there?

* There's also the Schuemann box. They are hard to come by so if anyone can share any experience with those that'd be much appreciated.

* And there's the diaphragm type total energy compensators like the PZL KWEC.

Any other options out there?

If you can share your thoughts and the pros/cons in your experience with each of these systems and how it compares to a system with a regular TE probe I'd be very thankful.

Cheers,

Ale.L (RL)

The Westerboer 1020 Vario has electronic TE. Works well.

The choice of vario is far less important than quality of the pressure
sources. For electronic TE to work well you need very accurate static
and dynamic pressure sources. In practice that means a pitot/static
probe. If you don't have that then stick with a TE probe - the best of
which is the ESA- systems twin prong probe mounted with the
prongs horizontal.

In a perfect world an ESA-system triple probe gives you the option of
the best possible TE probe or electronic compensation.

Like many others I have an LX 9000 and the triple probe. Very much
to my surprise I find it better set up for electronic TE than probe TE.

John Galloway

At 08:03 27 January 2015, Mike C wrote:
On Monday, January 26, 2015 at 7:47:59 PM UTC-7, Ale.L (RL)
wrote:
Hi folks!

Has anyone had any experience with non-TE compensated vario
systems? From
what I gather there're a few options out the

* There's the varios (and flight computers with integrated varios)
like
the CAI 302 and LxNav V7 that have electronic compensation as an
option.
Any others out there?

* There's also the Schuemann box. They are hard to come by so if
anyone
can share any experience with those that'd be much appreciated.

* And there's the diaphragm type total energy compensators like
the PZL
KWEC.

Any other options out there?

If you can share your thoughts and the pros/cons in your
experience with
each of these systems and how it compares to a system with a
regular TE
probe I'd be very thankful.

Cheers,

Ale.L (RL)

The Westerboer 1020 Vario has electronic TE. Works well.

I have flown with a Winter or Sage connected to the TE probe and a C302 on 100% electronic compensation. Very little difference. In fact, I prefered the C302 because it was less jumpy and didn't seem to be giving me as many false indications of lift due to horizontal gusts.