On Thu, 17 Jul 2008 22:52:01 -0400, "Eisboch" wrote:

I don't think there is anything metric about knots. Metric would be
km.

I've known a few European sailors. They measure wind speed in both
knots and meters/second depending on what wind instruments the boat
has. It turns out that knots are very closely approximated by
doubling meters/sec.