On 2011/11/22 21:34, Ramy Yanetz <ryan...@yahoo.com> wrote:
> And since 302 gives my audio STF command, there is no other way I can easily 
> make it to tell me to fly a little faster than tweaking the MC, and since 
> this in turns update the MC in XCSoar, hence we have this discussion...

So it boils down to: you want to have different MacCready settings in
the CAI302 and XCSoar?

I worked hard to make linking them possible, and it's pretty easy to
disconnect them for those who don't want it.  We have a ticket for
that already, IIRC.

> Max, we both use the same setup of 302/xcsoar, so I am curious how you 
> address this scenario of a marginal final glide at the end of the day into a 
> buoyant 20 knots headwind without causing XCSoar to assume that you plan to 
> climb and recalculate your arrival altitude. The only way to do it will be 
> perhaps to add bug factor but this is not what it was designed for and takes 
> more effort. MC is more intuitive. 

MacCready is only intuitive because you've been learning all your life
to do it that way, because legacy computers (and of course the good
old MacCready ring) can't do better.  It was a kludge based on
limitations of the tools we had.

It's not an issue with a modern glide computer.  XCSoar will consider
the wind in all calculations, and one doesn't need to increase the
MacCready/Bugs setting to account for head wind.

On your question: I use AutoMC.

Max

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