On Monday, September 19, 2016 at 4:30:20 PM UTC-4, George Haeh wrote:
Dave Nadler is quite correct in his
assertion that "Multiple observations on
different headings allow wind calculation",
but that methodology necessarily requires
more time than AA's wind updates at 20
Hz, for which you need a heading source
when flying a straight line.

Of course. But Evan has said get wind the CNv requires
flying on different headings and takes some time,
which means it is not incorporating a heading source.