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Old 05-08-2014, 11:42   #16
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Re: Plot travel across the Atlantic?

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Originally Posted by PDA1 View Post
I'm curious- how does one plot his movement across the Atlantic WITHOUT using a chart plotter?

Just for fun I'd like to get a large chart of the North Atlantic showing the Continents which includes Longitude and Latitude grid and numbers so I could plot a fictional voyage across the Atlantic.

What do you suggest?
I use John's option 2 - pilot charts. They are big enough to be useful, small enough to fit on a chart table without folding.
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Old 05-08-2014, 11:54   #17
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Re: Plot travel across the Atlantic?

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c) Some old timers (myself included) have also used "great circle routing charts"....but now-a-days (with daily weather info/forecasts), you're more likely to be changing course, looking for good wind (or calmer weather), rather than staying on one course the whole way and "praying" that you'll make it!
John missed this post the first time but to reiterate...the Great Circle charts are nice to use because as you say with forecasts and route changes the odds are you will not stay on a given great circle route.

However, your daily route plot overlaid on the great circle chart is nice because it shows with a glance the relative efficiency of your path. Any deviation from any straight line to your destination is extra miles you are traveling.

Additionally, these charts give you a different way to view the world.
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Old 05-08-2014, 18:45   #18
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Re: Plot travel across the Atlantic?

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I use John's option 2 - pilot charts. They are big enough to be useful, small enough to fit on a chart table without folding.
Thank you for the idea.
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Old 05-08-2014, 23:06   #19
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Re: Plot travel across the Atlantic?

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Thank you for the idea.
...and available to download for free.
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Old 06-08-2014, 05:12   #20
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Re: Plot travel across the Atlantic?

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...and available to download for free.
A Pilot chart can't print it out to a viewable size. 8-1/2 x 11 isn't useful for plotting....not with my eyes and printer.
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Old 06-08-2014, 07:49   #21
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Re: Plot travel across the Atlantic?

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A Pilot chart can't print it out to a viewable size. 8-1/2 x 11 isn't useful for plotting....not with my eyes and printer.
Gonna be a challenge to pack any chart of that scale into 8.5 x 11 and still maintain any significant degree of plotting accuracy. You could have it printed on larger paper, but then might as well spend a few dollars and just buy a chart.

There are a variety of "base maps", normally used for plotting weather forecast info, available from NOAA/OPC. Some cover most or all of the Atlantic.

http://www.opc.ncep.noaa.gov/basemaps/A_basemap.shtml
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Old 06-08-2014, 07:53   #22
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Re: Plot travel across the Atlantic?

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Gonna be a challenge to pack any chart of that scale into 8.5 x 11 and still maintain any significant degree of plotting accuracy. You could have it printed on larger paper, but then might as well spend a few dollars and just buy a chart.

There are a variety of "base maps", normally used for plotting weather forecast info, available from NOAA/OPC. Some cover most or all of the Atlantic.

Ocean Prediction Center--Atlantic Base Map

That's perfect for the moment.

Thanks again.
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Old 06-08-2014, 08:21   #23
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Re: Plot travel across the Atlantic?

Liked the idea of using a chart for great circle navigation but Mr Google could did not show me where to buy a gnomonic projection chart of the N Atlantic. Can anyone point me to a source?
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Old 06-08-2014, 08:24   #24
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Re: Plot travel across the Atlantic?

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Liked the idea of using a chart for great circle navigation but Mr Google could did not show me where to buy a gnomonic projection chart of the N Atlantic. Can anyone point me to a source?
See post 13 in this thread.
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Old 06-08-2014, 08:25   #25
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Re: Plot travel across the Atlantic?

Can anyone tell me how to layout a UPS (Universal Plotting Sheet) to establish a 15 minute (15 nm) distance between the top and bottom of the compass rose on the UPS?

I can figure out how to do it with a 30 minute distance but anything smaller than that and I get confused on how to set up the lines of longitude.
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Old 06-08-2014, 20:39   #26
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Re: Plot travel across the Atlantic?

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See post 13 in this thread.
Oh! Obviously I was not reading the thread carefully.

Thanks
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