On Tue, 07 Sep 2010 19:04:16 +0700, Bruce in Bangkok
wrote:

It is laziness I know but I like the ability to stretch out the COG
line to see whether I need to correct a bit for the tide. And, my wife
is always asking "when we are gong to get there". It is easy to read
off distance to 'X' and say well it's 10 more miles to go :-)

And I really dislike having to go into an anchorage in the dark!

You can plot out the route in advance. Once you activate the route,
a data window appears which shows your ETA, Time-to-go and
Distance-to-go. Time-to-go and ETA are based on your speed of course
and subject to change. We find this very useful on our trawler where
we have reasonably good control over speed. As soon as we get
underway in the morning I'll adjust speed for an ETA 30 to 60 minutes
before sunset and monitor/re-adjust as the day progresses.