Williams Joined Sauber, Ferrari and Mercedes in chasing McLarens F-Duct solution.  As the parts were reportedly delayed in Customs, the parts were only tested briefly in FP3 on one car.  Again not much is clear from the limited views we’ve had of the system and the system may not be complete.  The shark fin connects to the rear wing flap, with a duct passing inside to feed the rear wing slot to stall the wing.  As yet the ducting from the shark fin to the cockpit is not apparent.

More to follow on this post over the weekend…