On Tue, 1 Mar 2005 11:52:34 UTC, "Dan"
wrote:

: Nick wrote:
:
: Not quite that far. Dipping distance(nm) is 2.08 * SQRT(height in
: metres). 3 metres gives a horizon at 3.6 nm. The 21 metre ship has
: a
: dipping distance of 9.5 nm. So at 13.1 nm you will see the tops of
: the
: masts and at 3.6 nm you will see the hull down to waterline.
:
: So it aint gonna hit you in 10 mins.

If it's a HSS it'll have time to hit you, circle the area
machine-gunning survivors, nip back home and come back with a wreath
in ten minutes.

Ian