Originally Posted by CDN_Stalker
One fascinating thing I saw a few years ago, I think it was NASA that improved the drag co-efficient in an F-16 jet fighter by drilling thousands of tiny holes (with a laser) in the leading edge of the wings and pumping pressurized air into the leading edges (instead of air molecules rubbing on metal, the air flowed freely over air and reduced the vorticies that occur further back on the wing surface.)
The F-16XL airframe? The idea worked, too, though I don't recall them pumping pressurized air into the holes. Only problem was there was no practical way of keeping all the little holes from clogging up, IIRC.