On Mar 14, 12:04*pm, Ramy wrote:

Not only it isn't meaningless, but it is very meaningful.

[snip]

I agree, perhaps I was just soft pedaling.

There's much to be improved in wind calculation using GPS and TAS even
without resorting to magnetic compass inputs. I've been working on
better algorithms, which I test using recorded nmea from actual
flying, including ridge, wave & thermals. I find that the 302
component wind works really well. It's robust, reliable and rapid.
The vector wind, well, not so much. I have an algorithm in manual
spreadsheet form that flat out eats the 302's lunch for vector wind
using the same nmea and I've promised (but not yet delivered) a brief
to JW on this (it's better than XCS' wind calculation too). If he
likes it, perhaps we can make some improvements in XCS.

Another thing that may happen sooner is using the component wind to
sanity check XCS' vector wind and report a figure of merit of some
sort.

-Evan Ludeman / T8