Opinions on Varios

Bruce

I have used a V1000 attached to the TE probe on the PW-6 for three years
-- perfectly satisfied.
--
Charles Yeates

Swidnik PW-6U & PW-5
http://www3.ns.sympatico.ca/yeatesc/world.html


Bruce wrote:
Time to start a new debate.

How do pressure transducer varios compare to traditional mechanical
varios in club use?
Can you mix and match a capacity vario and a pressure transducer vario
on a single TE probe?
Do students - please note NOT experienced pilots - find the lcd display
units easy to use, or are moving needle varios better (I know we should
be using the audio - but for the times when we want to see the climb
performance the question is still valid)

We are looking at replacing some vintage mechanical varios, and have
some debate about the advisability of needing electrical power for the
vario and the relative benefits of the Borgelt B40 and the Tasman V1000,
and of course another set of Winter mechanicals...

Being a computer type, I am biased towards the "no moving parts" V1000.
So - any views?

Bruce

It's probably good to avoid sharing pressure transducer varios with
others that use capacity flasks as these introduce airflow into the TE
plumbing system that can degrade accuracy.

My main vario is a Borgelt B 50 and I replaced my excellent Sage
mechanical vario with a Borgelt B 40. I find it hard to thermal
accurately without an audio vario and switched mainly for this reason.
I can't say that I noticed any major changes in the B 50 when I removed
the Sage and its flask, though.

I can't think of any good reason to keep a mechanical or flask-driven
vario with the inexpensive pressure units around, especially those like
the B 40 that have an internal battery.

I'm all for no moving parts, but how do you make sound without a
diaphragm?

Mike

ASW 20 WA

In my old ship, a 19B, I had a Sage and a LX 1600. I recall a
suggestion, source of which I don't recall, about placing the T as far
back as possible. This seemed to work; at least the correlation
between both instruments was good.

In the new ship, we are using a LX7K and a B40. Both pressure
transducers and I like the idea of having the back-up instrument having
the audio.