How McLaren’s F-Ducts Work
Fascinating article in Racecar Engineering that I just stumbled upon. I know that there are enough F1 addicts around here to appreciate this:
http://www.racecar-engineering.com/articles/f1/449813/f-ducts-how-do-they-work.html
Now how Red Bull and Ferrari have managed to work this into their designs is an unanswered question. Martin Brundle has a good animation showing how the folks at the Beeb think this is working: