Craig Scarborough wrote:Canadian GP technical round-up
FERRARI F-138
The weather interfered with Ferrari's running of a new aero package during the Spanish Grand Prix and the parts appeared again during Friday practice in Canada. Joining the previously-tested revised front wing mounts, Coanda sidepods and sidepod vanes, was a new front wing design along with a chin being fitted under the nose. Throughout practice, the team ran back-to-back tests with differing set-ups. It's not clear what will be used for qualifying and the race here.The front wing is the most interesting part. The cascade winglet mounted to the wing's endplate has completely changed. Rather than being a horizontal wing, the element is now curved such that it meets the wing in an 'r' shape.
The revised cascade wing will probably create downforce, but the change is more likely to be about modifying the way the winglet bends the airflow around the outside of the front tyre. The new outer vertical section of the winglet will be quite effective at turning the airflow .Further aiding front end airflow is the small chin below the nose. Most teams have these 'pelican' or 'pregnant' bulges under the nosecone. They work with the neutral wing shape in the middle of the wing and the wings mounts to alter the airflow back along the edges of the car.
I'm told these chins also add downforce to the front end even though their design is counterintuitive at first sight, as it appears they would add lift not downforce.
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