NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: NO 9xx plotting sheets
From: Lu Abel
Date: 2014 Jan 25, 10:36 -0800
From: Lu Abel
Date: 2014 Jan 25, 10:36 -0800
Thanks, Greg! Interestingly, what they are selling is a printout from Ocean Grafix, the company that pioneered print-on-demand charts (and I suspect is doing quite well now that NOAA is stopping printing paper charts).
When I went to the Ocean Grafix web site and found the chart, I clicked on "buy" It sent me to a franchisee that did NOT carry the chart. Only when I clicked a second time did it send me to Nautical Charts On Line.
Some who replied sent me to sites that carried basically a 8-1/2 x 11 plotting sheet that is intended to cover a single degree of latitude and longitude. GREAT for plotting a reduced sight vs one's DR position. But if one wants to do a multi-day track, one would have a hard time using these sheets as opposed to something that covered multiple degrees on a "chart-sized" chart.
When I went to the Ocean Grafix web site and found the chart, I clicked on "buy" It sent me to a franchisee that did NOT carry the chart. Only when I clicked a second time did it send me to Nautical Charts On Line.
Some who replied sent me to sites that carried basically a 8-1/2 x 11 plotting sheet that is intended to cover a single degree of latitude and longitude. GREAT for plotting a reduced sight vs one's DR position. But if one wants to do a multi-day track, one would have a hard time using these sheets as opposed to something that covered multiple degrees on a "chart-sized" chart.
From: Greg Licfi <cfi@licfi.com>
To: luabel@ymail.com
Sent: Friday, January 24, 2014 3:38 PM
Subject: [NavList] Re: NO 9xx plotting sheets
Try this:
http://www.nauticalchartsonline.com/chart/detail/973-Plotting-Chart-973
On 01/24/2014 12:13 PM, Lu Abel wrote:
There are no large scale charts of the middle of the ocean, so if one is going to keep a reasonably detailed navigation plot (DR, GPS fixes, celestial shots) one needs some sort of plotting sheets.
A long time ago the US Navy's Hydrographic Office produced a series of charts which were basically blank Mercator charts covering 3 degree intervals of latitude and 3 to 6 degrees of longitude depending on latitude. For example, NO973 covers the band from 38 deg to 41 deg. (I'm looking at a NO973 from a celestial course I took in the mid 1980s)
What's happened to these plotting sheets? I can't find a source for them despite some fairly extensive web searches.
More important, what do people use today instead of these charts?
: http://fer3.com/arc/m2.aspx?i=126687
