T&T: GPS routes and repeatability was IALA Buoys Region A & B

[Bill Allen]

----- Original Message ----- 
From: "Dave Cooper" <swansong at gmn-usa.com>
To: <trawlers-and-trawlering at lists.samurai.com>
Sent: Monday, January 07, 2008 9:35 AM
Subject: Re: T&T: GPS routes and repeatability was IALA Buoys Region A & B


> <Randy wrote in part: Once you have successfully run a harbor approach 
> with
> the track on your GPS you can save that as a route for future use>
>
Boy, If I followed that apporach my dive boat would never leave the dock. I 
run a very narrow unmarked about 80 ft wide  channel (of nav. water) each 
time I go out at high tide it's a bit wider. Very hard sand waitting right 
outside of the channel. Also when I get to the approach to the ocean it's 
also unmarked and has a couple very nice bars waitting for you to screw up.I 
wouldn't run a chart plotter, but I'd be dead lost without my two northstars 
(one waas and one differental). I watch them both and that way if one has an 
issue I count on the other. I've run in almost 0 vis with them and they've 
always taken me through (in around ten years of running this channel). Once 
I thought I was smarter and yes I ran aground hard. Bill