Why the T-Wings Flex

[cosworth151]

The FIA is looking into whether or not some teams are purposely designing their T-wings to flex at high speeds. The speculation is that when the T-wings start to wobble at high speeds (on the straights), they disrupt the air flow to the rear wing. That causes the rear wing to stall. When the wing is in a stalled state, it generates far less downforce (and, therefor, far less drag).

A clever bunch, these F1 designers.

[Scott]

That makes more sense than the wings actually providing any downforce or directional aero from such a puny element.  I bet they will be gone by Monaco then. 

[John S]

Funny thing is though when we stick our arm out of our car window at any miles per hour, whether it's flexed or not, the damn MPG nose dives.   

[cosworth151]

The stated reason for them was to smooth the airflow & direct it to the rear wing. They might do that when they are stable. In FP today, Ferrari was running one car with a single wing & one with a McLaren style biplane wing. I wonder which will show up for Quali.