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Old May 21st 19, 01:14 AM posted to rec.aviation.soaring
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Default S80 vario decoupling

On Monday, May 20, 2019 at 3:28:56 PM UTC-7, Craig Funston wrote:
On Monday, May 20, 2019 at 12:41:01 PM UTC-7, wrote:
On Monday, May 20, 2019 at 11:22:26 AM UTC-7, MNLou wrote:
I use my S8 for STF and my Oudie for final glides.

Go to Settings / Hardware in the Oudie and unclick the boxes for the vario communications with the S8 and, voila, you can fly with different MC values in each instrument.

(I got the from Paul Remde.)

Lou


Thanks, yes that is how used to have it setup, but that requires entering waypoints and STF in each instrument as required. I've since switched it around and coupled the comms, and by doing that I don't really need to touch the Oudie all day, set it and forget it, and primarily use the S80 for any variables. The only issue then is that on final glide I need to flip the MacCready back and forth from STF to a "height check" MacCready value. With this setup any changes are done with S80 knobs or buttons, allows much less fiddling overall with computers, and almost no fiddling or tapping on the Oudie (usually just screen changes which I can do with my finger).
If we could get LXNav to develop a navbox where you could select the MacCready value for say "arrival altitude on target MacCready X", a variable MacCready setting, the vario would essentially be "uncoupled" for my needs. Maybe it is allowed for some other way and I just don't see it...


I keep the vario set on the final glide MacCready value and turn the volume down on the vario. There's not a lot of benefit, trying to follow MacCready on the final glide anyway.

YMMV,
Craig


Yes, I do the same with the volume on final, and certainly don't chase the indicator. But sometimes it is valuable, such as in the first half or so of a very long final glide, to have a conservative STF value visible to "guide" actual STF. After thinking about it some more, I realized I can just look at the required MacCready and required altitude dialog boxes on the Oudie and monitor glide as those numbers change. That way I can keep the comms coupled, get quality wind from the S80 for the calculations that use that, and keep my eyes looking out of the glider like Cochrane suggested during his webinar.