Wed May 02, 2012 3:31 pm
Yeah, it's measuring the flow about the front wheel, so effectively examining the performance of the front wing outer sections.
I've never seen a video of one in action, but given the amount of gubbins that comes with it, it looks like it might be stabilised also, which will make interpreting the results easier.
"Words are for meaning: when you've got the meaning, you can forget the words." - Chuang Tzu