Square Bear, please don't take offence! The comment was made with my
tongue planted firmly in my cheek. Stickybeke is a welcome
contributor to PPRuNe. But I haven't noticed any of your contributions before.
So, have you ever been a pilot? Which, I understand, means that one has
actually flown an aircraft solo? I have.
If you were flying a GA a/c equipped with a (say GNS-430) Nav/Com/GPS, and entered YADL direct to fly to Adelaide you would be in big trouble.
And that's why this sort of detail is rather important.
