Yea, those are really big charts. But thank you for the suggestion. When I say big, I mean the grids are 25 degrees square on the one sight, and 5 degrees on the other. Neigher chart though scribes the entire chart. If you were to use those you'd have to really do some parallel work. When I was in Japan
, I got a bunch from their Hydro Office, the 1 degree and 5 degree ones. I running out of those. Yes, you're very correct, GNOMONIC CHARTS/GREAT CIRCLE CHARTS are a bit old fashioned considering all the new tools we have. But it's so nice to be able to lay out your whole trip on one and then check off your waypoints. At least I think so. I guess I'm dating myself. Shame on me.
Again, thank you for sharing your knowledge and information.
Sailboats don't have ETA's only DESTINATIONS