I'm afraid I just blow 'em 'til I think they sound right.. I've never really dabbled with flute much, but your site looks very interesting indeed, I'll enjoy that, thanks.

I appreciate what you mean about different temperaments on the violin, but I just wanted a rough idea of distance in order to understand the degree of accuracy required to have useful control over the temperament. Any example would suffice, though I chose low notes for obvious reasons.