At the risk of beating a horse that may be drawing its last breaths.....Originally Posted by Airmutt
Yes, in its purest sense GPS doesn't know or provide heading. Matter of fact....in any sense it doesn't know or provide heading. It can only provide ground track.
Perhaps this can be an informational thread for aviators who may not fully understand the function and limitations of GPS; the poorly written AC could be misleading. Maybe this will help.....and I hope this hasn't sounded snarky.
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