The B40 has backup power supply on the instrument.
Dennis
On 6/12/14 3:13 PM, Tim Shirley wrote:
Hi all,
Thanks heaps to people posting factual information about products of
interest to soaring pilots. It is so much more useful than most of
the nonsense that passes for comment here. Even if people are singing
the praises of their own products, I still welcome all such information.
I already have a high-end vario, so I'm not in the market for yet
another magic box that will transform me into Sebastian Kawa. It
didn't work with the first one either, though I am sure that is down
to me. The instrument works fine. I also have a Winter vario that
performs well enough as a backup but when I recently had a fuse blow
in flight, I found myself with only the Winter for a couple of hours
and I would have preferred a bit of audio and an averager.
Of course, such a backup vario doesn't need to be complex and
certainly it should not be expensive. It just needs to have a backup
power supply onboard the instrument. So what are the options?
Oh, and a reminder to all, I still have a very nice Discus for sale at
a very reasonable price :)
Cheers
/Tim Shirley/
/tra dire é fare c' é mezzo il mare/
On 6/12/2014 2:26 PM, Mike Borgelt wrote:
Imitation is the greatest compliment.
Sounds like they've copied most of the features from our B700/900.
We've had the climb improving green light since the B400/B500 9 years
ago and put in the comparator for the running average/thermal average
as well on the B700 3 years ago and its more recent linear scale
version the B900.
Also the climb audio on/off ratio changes slightly when climb rate
exceeds running average. B400/B700/B900 can run from 4 x AA alkaline
batteries for hours (power pack but no batteries included).
These are also on the B600/B800 systems which have an airspeed
sensor, advanced vario processing (optional netto or relative), speed
to fly, glide/nav/wind computer, GPS and serial output of GPS, air
data and settings to external PNA type glide computers.
All our varios also have a large clear stepper motor driven pointer
of extremely high resolution. The stepper allows for nearly 360
degree pointer movement (more can be confusing) giving significantly
expanded scales. Most manufacturers were offering LCD pointer displays
in the 1980s but nearly all have gone to stepper motor driven
pointers. We looked at this around 1987 but didn't like the poor 0.4
knot resolution that was the best possible. You'd be really annoyed
if say a Winter vario had a pointer that moved in half knot steps.
All our instruments are available to properly fit 57mm or 80mm
standard holes (adapter plates not required) and by putting the
scales on the outside of the hole even the 57mm instruments have a
larger, clearer display.
The B600/B800 can also take our new Dynamis sensor for complete 3D
real time airmass motion sensing and no horizontal gust sensitivity.
Expensive (the sensor mainly), but unmatched capability. A recent
customer who fitted a B800 to get an early Dynamis when
available has found he likes the audio better than the one in the
CAI302 it replaced and better than the LX9000 audio.
Mike
At 11:15 AM 6/12/2014, you wrote:
Tasman Instruments have released a completely new model, the VRM 10
/Sprite/. It has a lot of new features such as elapsed time clock,
recorded alarms including under carriage warning but its best
feature is the way it allows you to more daily centre thermals. It
also has up/down arrows showing whether the climb is improving or
the need to recenter or leave the thermal. It also has tone
selection, fast response and of course does not need a flask as per
the previous Tasman model.
I was lucky to be able to have XON as a test bed for its development
and it has certainly impressed out syndicate pilots. Worth a look!
Cheers
David Cleland
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