On Tue, 15 Apr 2008 19:10:48 -0400, "Roger Long"
wrote:

(Good chuckle)

In the days when those were used, some sort of speed determining device was
considered an essential adjunct. It's only practical to get a position a
couple times a day on a small vessel and there are days when you can't get a
position on any heavenly bodies at all. Course and speed are then the
navigational inputs. If a sextant is a back up for GPS than a knotlog has a
place on a vessel as well.


If you are going to go for the sextant then no cheating with the
electronic knot log. You'll have to get one of those reels and a sand
glass for speed.

And a lead line along with some tallow to "arm" it with.

Damn, life is getting complicated.

Bruce-in-Bangkok
(correct email address for reply)