Originally Posted by High Wing Drifter
Good question. This
article explains things in a convincing manner. Whether it is true or not...
Nice link. Thanks, HWD. Convincing but again (and I'm playing devil's advocate here) hints at more magic and mumbo jumbo.
Now I have to believe that because the air in a vortex I left behind in my wake meets the ground, I get a magic drag reduction, therefore lift boost
But I left that air way behind - it's 30m gone, history etc...