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Post by Tom/CalClassic on Apr 29, 2023 16:05:43 GMT -5
Hi again, Alpha testing is coming along, we keep finding more things to add. The tutorial now includes some information on the new charting capability. It's rather low resolution (one map for an entire ocean) so it is really for general orientation, not exact flight planning. We've also removed the lat/lon printout from the notepad for those that prefer to find that on a real LORAN chart. You can still find it printed on our map within the gauge if you bring it up. www.calclassic.com/LORAN_Tutorial/How_to_Use_the_LORAN_Gauge.htmlIn Firefox I had to Shift-Click the Refresh button to see the new version, it depends on how long it's been since you've seen it. Hopefully not long now,
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Post by awralls on Apr 30, 2023 3:06:09 GMT -5
One assumes that, since the gauge generates the lat/long, Google Earth Pro would be fine for plotting?
Andy
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Post by Tom/CalClassic on Apr 30, 2023 9:31:46 GMT -5
Yes indeed. I even suggest that in the tutorial, although I would also be interested in what others use for plotting that can handle lat/lon.
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Post by Jorge on Apr 30, 2023 11:37:04 GMT -5
I use either Google Earth or Plan-G. With the latter, it reads the scenery.cfg file and places what's in your scenery in your "map" for the program. You can plot individual points as well. It also allows for taking radials off of NDB's and VOR's so you can get an idea of where the things are crossing on the map (from your readings in the cockpit's needles, that is). The only bad thing is that you can't plot lines longer than about 100nm or so. For longer range, however, I would stick with Google Earth. It seems to have more flexibility. If you can geo-reference the available loran charts (if you can download them) you'll be able to make a kmz file like the folks here: ngmdb.usgs.gov/topoview/You can then plot directly on the chart in Google Earth. I haven't tried it yet, but I've placed the charts they've made in Google Earth and it looks pretty cool -- even for topographic maps! Regards, Jorge Miami, FL
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Post by Tom/CalClassic on Apr 30, 2023 13:51:42 GMT -5
I have been able to bring in a GeoTIFF image of the North Atlantic LORAN map into Google Earth: I followed this simple video to do it: www.youtube.com/watch?v=J8qQnZOXTnQMake sure you make a new folder for the resulting KMZ files because there are a lot (8,343 files to be exact). You can get a GeoTIFF version of the North Atlantic map here: www.davidrumsey.com/luna/servlet/detail/RUMSEY~8~1~299531~90070545:Central-North-Atlantic-area-Loran-cClick on the "View in Georeferencer" box in the upper right, then click My Maps in the upper right. Then Sign In if you have an account or create one, its free. Then Add the North Atlantic map to My Maps if not already there. Then at the bottom click This Map, and at the bottom click the Export to GeoTIFF download version link. Note that the resulting map will be over 1 GB in size! They will send you an email with the download link when it is ready. Again, large file! Now (following the video tutorial above) just drag it onto the Google Earth Map, choose Super Overlay, and save to a new folder somewhere. The map will appear in Google Earth, allowing you to know your lat/lon at any location and use other GE features. The KMZ folder is only 130 MB; you can delete the 1 GB GeoTIFF if you are finished with it. Hope this helps,
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Post by Tom/CalClassic on Apr 30, 2023 14:15:40 GMT -5
The accuracy is OK, but not perfect. It's aligned along the top edge, but at the bottom it's off by about 20 minutes. But using the charting capability in GE might be worth it?
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