How to calculate and display true wind from apparent wind and SOG?

[Dockhead]

Originally Posted by RhythmDoctor

If you’re fine with it, that’s great. For this thread, I just would prefer to focus on “How to do it,” and let the discussion of whether it’s a good thing to do happen in a different thread.

FWIW, I am aware of the extreme instability of apparent wind readings when heading DDW. But I’m unconvinced that using calculated true wind provides anything more than false confidence. I see it as GIGO. But I’ll continue to read the arguments as time allows.

I've quoted this post in a new thread on the Usefulness of True Wind Data, here: Usefulness of True Wind Data for Sailing Performance - Cruisers & Sailing Forums

It will be interesting to see what people have to say about it; thanks for raising the question.