trawlers@lists.trawlering.com

TRAWLERS & TRAWLERING LIST

View all threads

Re: Navigation (another view)

H
hshoffman@erols.com
Sun, Jan 3, 1999 3:44 AM

Nick and Sherri,

I think you are making it a lot harder than it really is.  If you buy one of
the State of Maryland chartbooks (about $20) to use with your GPS, you can
put in the Lat/Long very easily and quickly.  The key is that this chartbook
uses lines that form one minute squares (actually rectangles).  This makes
it very easy to put in a waypoint.  The degree and minute numbers of a
waypoint are easy, and the tenth of a minute input is easy to estimate by
the waypoint's position in the square.  This makes it very easy to enter
several new waypoints on the fly, Nick, after Sherri says she would rather
go to St. Michaels instead of anchoring in Queenstown.

I will admit that anything you can do before the trip makes the cruise
easier, but I still find myself putting in additional waypoints or changing
waypoints to provide a smoother ride or changing destinations.  I don't
think I have ever gone on a cruise without making changes after I left my
home marina.  If you have a made a mistake in entering a waypoint, it is
usually obvious.  I was an airline pilot for 30 years and know that it is
very important to enter an accurate waypoint, however, it should never be a
disaster if there is a mistake in the accuracy of a waypoint when using a
GPS in good weather on the Chesapeake, because any good navigator as has
been mentioned many times on this list, knows where he is and cross checks
with other inputs besides his primary.

The Maryland chartbook does not give the detail of the BBA Chartkit, so you
would probably want to have either the separate charts of the area in which
you are cruising or the BBA Chartkit.  I use the BBA which supplies better
detail of some of the harbors than the MD chartbook, but I do use the MD
chartbook a lot of the time, because of those one minute rectangles.

Good luck with your cruising,

Herb Hoffman
My Tyme
Prairie 29

nip-....

experiences and advice on this list for the last year. (We will be mostly
weekending on the Chesapeake Bay).

Nick and Sherri, I think you are making it a lot harder than it really is. If you buy one of the State of Maryland chartbooks (about $20) to use with your GPS, you can put in the Lat/Long very easily and quickly. The key is that this chartbook uses lines that form one minute squares (actually rectangles). This makes it very easy to put in a waypoint. The degree and minute numbers of a waypoint are easy, and the tenth of a minute input is easy to estimate by the waypoint's position in the square. This makes it very easy to enter several new waypoints on the fly, Nick, after Sherri says she would rather go to St. Michaels instead of anchoring in Queenstown. I will admit that anything you can do before the trip makes the cruise easier, but I still find myself putting in additional waypoints or changing waypoints to provide a smoother ride or changing destinations. I don't think I have ever gone on a cruise without making changes after I left my home marina. If you have a made a mistake in entering a waypoint, it is usually obvious. I was an airline pilot for 30 years and know that it is very important to enter an accurate waypoint, however, it should never be a disaster if there is a mistake in the accuracy of a waypoint when using a GPS in good weather on the Chesapeake, because any good navigator as has been mentioned many times on this list, knows where he is and cross checks with other inputs besides his primary. The Maryland chartbook does not give the detail of the BBA Chartkit, so you would probably want to have either the separate charts of the area in which you are cruising or the BBA Chartkit. I use the BBA which supplies better detail of some of the harbors than the MD chartbook, but I do use the MD chartbook a lot of the time, because of those one minute rectangles. Good luck with your cruising, Herb Hoffman My Tyme Prairie 29 nip-.... >experiences and advice on this list for the last year. (We will be mostly >weekending on the Chesapeake Bay).