Nav Tool for Reading Minutes on Nav Map

[kevinsue]

Would anyone know if there is a tool similar to this one in the screenshot, found in the user maps, somewhere available for download, except graduated for individual minutes instead of tens of minutes? Would make plotting contact reports etc more precise if one was available somewhere. One that scaled with the map would be even better!

[Sjizzle]

Originally Posted by kevinsue

Would anyone know if there is a tool similar to this one in the screenshot, found in the user maps, somewhere available for download, except graduated for individual minutes instead of tens of minutes? Would make plotting contact reports etc more precise if one was available somewhere. One that scaled with the map would be even better!

u can always use maneuvering board for that and that chart from your screen is made for RN not for plotting contact reports

[kevinsue]

Thanks for the reply I've never been able to work out what that Timepiece Board actually does. I heard a whisper on the wind that a full Celestial Navigation mod may be in progress so I thought I had better start brushing up on Coastal and Celestial navigation just in case, and intend to make a start with Sjizzles nav tutorials if I can find them again. Years ago I did a Celestial Navigation course at a Tech college and learned the "Marcq St Hilaire method" otherwise known as the "Intercept Method" but after not using it for three and a half decades, the knowledge has gradually faded into oblivion!

Wow! logarithm and haversine tables...haven't heard of or seen these in over half a lifetime....

https://en.wikipedia.org/wiki/Intercept_method

[kevinsue]

Originally Posted by kevinsue

Would anyone know if there is a tool similar to this one in the screenshot, found in the user maps, somewhere available for download, except graduated for individual minutes instead of tens of minutes? Would make plotting contact reports etc more precise if one was available somewhere. One that scaled with the map would be even better!

Any talented person able to do this will add an invaluable tool for plotting radio contact positions accurately instead of "near enough is good enough". Using radio contacts and predicting future positions of convoys is by far the best method of finding and intercepting targets in the vast expanse of the Atlantic.

[LesBaker]

Is this any use to you.



If so here's the file.

http://www.mediafire.com/download/ke..._Chart_1Deg.7z

All the Best
Les

[kevinsue]

Thanks for that Les. It looks like just the thing I was looking for!

[LesBaker]

Here's an alternative version.





and here's the file

http://www.mediafire.com/download/id...rt_1Deg_Alt.7z


Hope you like it.

Les

[LesBaker]

A second alternative.



Here's the file

http://www.mediafire.com/download/w4...t_1Deg_Alt2.7z

Enjoy

Les

[kevinsue]

Great stuff Les...getting ready to get into celestial navigation and these will good for placing fixes accurately as well. Here are the first two victims, plotted
and hunted down with the new plotting tool.

[LesBaker]

Originally Posted by kevinsue

Great stuff Les...getting ready to get into celestial navigation and these will good for placing fixes accurately as well. Here are the first two victims, plotted
and hunted down with the new plotting tool.

Yeah can't wait for Potus's video on real Nav and Celestial nav by an actual Navigation Officer, glad to see the plotting tool worked been trying all 3 versions and I prefer the 2nd alternative, what's your preference?

Les

[kevinsue]

I haven't tried the third alternative one yet but I would say more than likely that the second alternative will be my preferred version.

Here is a link to a webpage that I printed out and use to get accurate conversions from the headings relayed in the radio contact message
for example South-southwest (SSW) to 202.5°, Northeast by east (NEbE) to 56.25° etc.

http://routine-life-measurements.blo...ons-north.html

I decided to make this into a User Chart because it's so handy and will work well with the new plotting tools. To make room I have removed the Timepiece
Board from the plotting tools as I think Vecko has used the available slots for the Harbour charts. Link below...just extract into the MODS folder and install
anytime with JSGME if you want to take a look at it.



http://www.mediafire.com/download/4d...User_Chart.zip