Todd Thelin > Can someone walk me through how to get accurate wind > information at 7500' with only a GPS?
This doesn't answer your question, exactly, but if you're looking for your true airspeed, one way is to go to http://www.csgnetwork.com/tasgpscalc.html with your headings (90 degrees apart) and GPS speeds, and fill in the blanks. I usually do it early in the morning on calm days, check winds aloft at http://www.usairnet.com/cgi-bin/Winds/Aloft.cgi , and then do a four way check averaging the four, or even just a two way check flying into and with the wind, averaging the two. I almost always come up with the same exact number, even when I do each method twice. But to answer your question, the guys with a Dynon would just tell you to look at the screen if you want wind direction and velocity... Mark Langford n5...@hiwaay.net website www.n56ml.com
