Thank you Tom for posting these videos! Yesterday I passed my last 2 exams, and one of them was Gnav. Thanks to your support I could answer without any doubts to Grid and Polar charts question. Thank you again and best wishes!
Thank you for sharing this video. A little side note though, neither Madrid nor New York are anyway near 70˚ North, but the principles of the angles are the same,- but if you get into determining distances and fuel, you’re going to have some problems..