There's been a lot of effort into making a realnav mod for SH3 with somewhat disappointing results. The combination of pgms SH3, Python & Stellarium is the most realistic to date. For one thing it will give the neophyte navigator a lesson of what it takes to move vessels around on the surface of the earth.(and below)
It will definitely take the player to a higher state of immersion. From taking sights to sight reduction, with or without weather's influence, a whole new game.
