Talk:HMS Tyger

Tons Burthen cannot be given metric equivalents
I see that - as with many other articles on sailing era warships, the author has given what purports to be metric tonnage equivalents for the tons burthen. Apologies if you are already aware of this, but I clearly need to spread the word that tons burthen (used for all ships of the sailing era, although the calculation varied from one nation to another) are units of measurement and not units of weight (so reference to "long tons" is also an error) and there are no metric equivalents. It was only with the introduction of displacement tons during the 19th Century that tons acquired the meaning of tons weight. Sadly, this may mean that a large number of articles need to be checked and - where necessary - corrected. Rif Winfield (talk) 14:07, 19 December 2011 (UTC)